ExifTool - Dateidatum gemäß Exif ändern
Ralf Teschenbaum
ich suche nun schon den halben Tag nach einer M�glichkeit, um mit ExifTool
das Erstelldatum und das Datum der letzten Modifikation aus den EXIF-Daten
einer Bilddatei (CR2) auszulesen um damit die von Windows im Dateisystem
gespeicherten Werte f�r 'Erstelldatum' (.DateCreated) und 'Letzte �nderung'
(.DateLastModified) zu �berschreiben.
Ziel: Das Dateidatum soll gleich dem Erstelldatum sein, damit man schon im
Windows-Explorer eine entsprechende Sortierung hinbekommt. �ber das
�nderungsdatum m�chte ich schon im Explorer sehen, ob die Datei bearbeitet
wurde.
Ich wei�, dass Windows mit der Verwaltung dieser Daten nicht ganz perfekt
umgeht (wenn man eine Datei kopiert, wird nur das Erstelldatum angepasst und
auf das Datum des Kopierens gesetzt, so dass die Letzte �nderung an der
Datei noch vor der Erstellung m�glich sind ... )
Hat jemand eine Idee, wie das in ExifTool geht?
Ach ja, wenn jemand eine etwas vollst�ndigere Dokumentation der
ExifTool-Kommandos als die von Phil Harvey selbst kennt, w�rde ich mich �ber
einen Link sehr freuen!
Danke, Ralf.
Volker Bartheld
On Sun, 12 Jul 2009 13:58:59 +0000, Ralf Teschenbaum wrote:
> ich suche nun schon den halben Tag nach einer M�glichkeit, um mit ExifTool
> das Erstelldatum und das Datum der letzten Modifikation aus den EXIF-Daten
> einer Bilddatei (CR2) auszulesen um damit die von Windows im Dateisystem
> gespeicherten Werte f�r 'Erstelldatum' (.DateCreated) und 'Letzte �nderung'
> (.DateLastModified) zu �berschreiben.
Ad hoc habe ich da keine L�sung parat, bin mir aber einigerma�en sicher,
da� ein derartiges Problem sogar in der Manpage von exiftool behandelt
wird.
> Ach ja, wenn jemand eine etwas vollst�ndigere Dokumentation der
> ExifTool-Kommandos als die von Phil Harvey selbst kennt, w�rde ich mich �ber
> einen Link sehr freuen!
Ich habe Exiftool nicht separat installiert, sondern als Bestandteil von
Hughin. Da kann man recht bequem mit exiftool --help (wenn ich mich recht
entsinne) eine mehrseitige und sehr ausf�hrliche Anleitung mit etlichen
Beispielen anzeigen lassen. Kennst Du die?
Viel Erfolg!
Gr��e,
Volker
--
@: I N F O at B A R T H E L D dot N E T
3W: www.bartheld.net
Guido Ostkamp
> ich suche nun schon den halben Tag nach einer Mï¿œglichkeit, um mit
> ExifTool das Erstelldatum und das Datum der letzten Modifikation aus
> den EXIF-Daten einer Bilddatei (CR2) auszulesen um damit die von
> (.DateCreated) und 'Letzte ï¿œnderung' (.DateLastModified) zu
> ï¿œberschreiben.
Aus der Manpage:
exiftool '-DateTimeOriginal>FileModifyDate' dir
Use the original date from the meta information to set the same
file's filesystem modification date for all images in a directory.
(Note that "-TagsFromFile @" is assumed if no other -TagsFromFile
is specified when redirecting information as in this example.)
Ansonsten ist 'Perl' Dein Freund:
<http://search.cpan.org/~wyant/Win32API-File-Time-0.006/lib/Win32API/File/Time.pm>
Damit kannst Du nach Auslesen der Werte via exiftool auch alle drei
Werte getrennt beeinflussen.
Gruￜ
Guido
Herbert Kleebauer
> ich suche nun schon den halben Tag nach einer M�glichkeit, um mit ExifTool
> das Erstelldatum und das Datum der letzten Modifikation aus den EXIF-Daten
> einer Bilddatei (CR2) auszulesen um damit die von Windows im Dateisystem
> gespeicherten Werte f�r 'Erstelldatum' (.DateCreated) und 'Letzte �nderung'
> (.DateLastModified) zu �berschreiben.
>
> Ziel: Das Dateidatum soll gleich dem Erstelldatum sein, damit man schon im
> Windows-Explorer eine entsprechende Sortierung hinbekommt. �ber das
> �nderungsdatum m�chte ich schon im Explorer sehen, ob die Datei bearbeitet
> wurde.
>
> Ich wei�, dass Windows mit der Verwaltung dieser Daten nicht ganz perfekt
> umgeht (wenn man eine Datei kopiert, wird nur das Erstelldatum angepasst und
> auf das Datum des Kopierens gesetzt, so dass die Letzte �nderung an der
> Datei noch vor der Erstellung m�glich sind ... )
Ich denke, Windows macht das ganz perfekt. Das Erstellungsdatum einer Datei
hat nichts mit dem Inhalt der Datei zu tun. Ein Erstellungsdatum des Inhalts
ergibt ja meistes keinen Sinn. Wenn du einen Text schreibst, wann wurde der
erstellt? Wenn das erste Zeichen geschrieben ist, wenn die H�lfte fertig ist
oder wenn das letzte Zeichen geschrieben ist. Bei Bildern macht es ausnamnsweise
Sinn und deshalb ist das Aufnahmedatum als Exif-Information in den Bilddaten
abgespeichert und der Windows-Explorer zeigt, wenn gew�nchst, auch dieses Datum
neben Erstellungs- und �nderungsdatum an.
Das Kopieren des Aufnahmedatums zu Erstellungs- und �nderungsdatum dagegen
macht wirklich keinen Sinn: Bei jedem Kopieren der Datei wird das Erstellungs-
datum korrekterweise auf das Datum des Kopiervorgangs gesetzt und das �nderungsdatum
sollte ja das Datum der letzten �nderung und nicht das Aufnahmedatum anzeigen
(falls keine �nderungen vorgenommen wurden, ist das �nderungsdatum ja identisch
mit dem Aufnahmedatum). Was ich jedoch als sinnvoll empfinde ist das Umbenennen
des Namens von einem nichtssagenden IMG01234.jpg nach yyyymmmdd-hhmmss.jpg
(Aufnahmedatum).
Volker Bartheld
Ich nochmal.
>> Ach ja, wenn jemand eine etwas vollst�ndigere Dokumentation der
>> ExifTool-Kommandos als die von Phil Harvey selbst kennt
> Ich habe Exiftool nicht separat installiert, sondern als Bestandteil von
> Hughin. Da kann man recht bequem mit exiftool --help
Wie ich mir schon dachte. --help stimmt. Folgendes wird dort ausgegeben
(ich poste das jetzt einfach, da exiftool-Fragen ja offenbar immer wieder
mal auftauchen):
<exiftool --help>
NAME
exiftool - Read and write meta information in files
RUNNING IN WINDOWS
Drag and drop files or folders onto the exiftool executable to display
meta information, or rename to "exiftool.exe" and run from the command
line to access all exiftool features.
This stand-alone Windows version allows simple command-line options to
be added to the name of the executable (in brackets and separated by
spaces at the end of the name), providing a mechanism to use options
when launched via the mouse. For example, changing the executable name
to "exiftool(-a -u -g1 -w txt).exe" gives a drag-and-drop utility which
generates sidecar ".txt" files with detailed meta information. As
shipped, the -k option is added to cause exiftool to pause before
terminating (to keep the command window open). Options may also be added
to the "Target" property of a Windows shortcut to the executable.
SYNOPSIS
exiftool [*OPTIONS*] [-*TAG*...] [--*TAG*...] *FILE*...
exiftool [*OPTIONS*] -*TAG*[+-<]=[*VALUE*]... *FILE*...
exiftool [*OPTIONS*] -TagsFromFile *SRCFILE* [-*SRCTAG*[>*DSTTAG*]...]
*FILE*...
exiftool [ -ver | -list[w|f|g[*NUM*]|d] ]
For specific examples, see the EXAMPLES sections below.
DESCRIPTION
A command-line interface to Image::ExifTool, used for reading and
writing meta information in image, audio and video files. *FILE* is a
source file name, directory name, or "-" for the standard input.
Information is read from the source file and output in readable form to
the console (or written to an output text file with the -w option).
To write or copy information, new values are specified with the
-*TAG*=[*VALUE*] syntax or the -TagsFromFile option. This causes *FILE*
to be rewritten, and by default the original file is preserved with
"_original" appended to the file name. (Be sure to verify that the new
file is OK before erasing the original.)
Below is a list of file types and meta information formats currently
supported by ExifTool (r = read, w = write, c = create):
File Types | Meta Information
--------------------------------------- | --------------------
3FR r ITC r PNG r/w | EXIF r/w/c
ACR r JNG r/w PPM r/w | GPS r/w/c
AI r JP2 r/w PPT r | IPTC r/w/c
AIFF r JPEG r/w PS r/w | XMP r/w/c
APE r K25 r PSD r/w | MakerNotes r/w/c
ARW r KDC r QTIF r | Photoshop IRB r/w/c
ASF r M4A r RA r | ICC Profile r/w/c
AVI r MEF r/w RAF r/w | MIE r/w/c
BMP r MIE r/w/c RAM r | JFIF r/w/c
BTF r MIFF r RAW r/w | Ducky APP12 r/w/c
CR2 r/w MNG r/w RIFF r | CIFF r/w
CRW r/w MOS r/w RM r | AFCP r/w
CS1 r/w MOV r SR2 r | JPEG 2000 r
DCM r MP3 r SRF r | DICOM r
DCR r MP4 r SWF r | Flash r
DNG r/w MPC r THM r/w | FlashPix r
DOC r MPG r TIFF r/w | GeoTIFF r
EPS r/w MRW r/w VRD r/w/c | PrintIM r
ERF r/w NEF r/w WAV r | ID3 r
FLAC r OGG r WDP r/w | Kodak Meta r
FLV r ORF r/w WMA r | Ricoh RMETA r
FPX r PBM r/w WMV r | Picture Info r
GIF r/w PDF r/w X3F r | Adobe APP14 r
HDP r/w PEF r/w XLS r | APE r
HTML r PGM r/w XMP r/w/c | Vorbis r
ICC r/w/c PICT r | (and more)
Note: If *FILE* is a directory name, then only file types with
recognized extensions are processed when reading, and only writable
types are written. However, the -ext option may be used to force
processing of files with any extension.
OPTIONS
Case is not significant for any command-line option (including tag and
group names), except for single-character options if the corresponding
upper case option is defined. Multiple options may NOT be combined into
a single argument, because that would be interpreted as a tag name.
-*TAG*
Extract information for specified tag (ie. "-CreateDate"). See
Image::ExifTool::TagNames for documentation on available tag names.
A tag name may include a leading group name separated by a colon
(ie. "-XMP:Creator"). Any family 0 or 1 group name may be used, and
the group name may be prefixed by a digit to specify family number
(ie. "-1IPTC:Keywords"). Use the -listg or -listg1 option to list
valid family 0 or 1 group names.
A special tag name of "All" may be used to indicate all meta
information. This is particularly useful when a group name is
specified to extract all information in a group. ("*" is a synonym
for "All", but must be quoted if used on the command line to
prevent shell globbing.)
If no tags are specified, all available information is extracted.
--*TAG*
Exclude specified tag from extracted information. Same as the -x
option. May also be used following a -TagsFromFile option to
exclude tags from being copied, or to exclude groups from being
deleted when deleting all information (ie. "-all= --exif:all"
deletes all but EXIF information).
-*TAG*[+-]=[*VALUE*]
Write a new value for the specified tag (ie. "-comment=wow"), or
delete the tag if no *VALUE* is given (ie. "-comment="). "+=" and
"-=" are used to add or remove existing entries from a list, or to
shift date/time values (see Image::ExifTool::Shift.pl for details),
and "-=" may be used to conditionally remove or replace a tag (see
"WRITING EXAMPLES" for examples).
If a group name is not specified for *TAG*, then the information is
written to the preferred group, which is the first group in the
following list where *TAG* is valid: 1) EXIF, 2) IPTC, 3) XMP, 4)
MakerNotes.
The special "All" tag may be used in this syntax only if a *VALUE*
is NOT given. This causes all meta information to be deleted (or
all information in a group if "-GROUP:All=" is used). Note that not
all groups are deletable. Also, within an image some groups may be
contained within others, and these groups are removed if the super
group is deleted. Below are lists of these group dependencies:
JPEG Image:
- Deleting EXIF or IFD0 also deletes ExifIFD, GlobParamIFD,
GPS, IFD1, InteropIFD, MakerNotes, PrintIM and SubIFD.
- Deleting ExifIFD also deletes InteropIFD and MakerNotes.
- Deleting Photoshop also deletes IPTC.
TIFF Image:
- Deleting EXIF only removes ExifIFD which also deletes
InteropIFD and MakerNotes.
-*TAG*<=*DATFILE* or -*TAG*<=*FMT*
Set the value of a tag from the contents of file *DATFILE*. The
file name may also be given by a *FMT* string where %d, %f and %e
represent the directory, file name and extension of the original
*FILE* (see the -w option for more details). Note that quotes are
required around this argument to prevent shell redirection since it
contains a "<" symbol. "+<=" or "-<=" may also be used to add or
delete specific list entries, or to shift date/time values.
-@ *ARGFILE*
Read command-line arguments from the specified file. The file
contains one argument per line (NOT one option per line -- some
options require additional arguments which must be placed on
separate lines). Blank lines and lines beginning with "#" and are
ignored. Normal shell processing of arguments is not performed,
which among other things means that arguments should not be quoted.
*ARGFILE* may exist relative to either the current directory or the
exiftool directory unless an absolute pathname is given.
For example, the following *ARGFILE* will set the value of
Copyright to "Copyright YYYY, Phil Harvey", where "YYYY" is the
year of CreateDate:
-d
%Y
-copyright<Copyright $createdate, Phil Harvey
-a Allow duplicate tag names in the output. Without this option,
duplicates are suppressed.
-b Output requested data in binary format without tag names or
descriptions. This option is mainly used for extracting embedded
images, but it may also be useful in separating values of list-type
tags since a newline is used instead of a comma to separate these
values in the -b output.
-c *FMT*
Set the print format for GPS coordinates. *FMT* uses the same
syntax as the "printf" format string. The specifiers correspond to
degrees, minutes and seconds in that order, but minutes and seconds
are optional. For example, the following table gives the output for
the same coordinate using various formats:
FMT Output
------------------- ------------------
"%d deg %d' %.2f"\" 54 deg 59' 22.80" (the default)
"%d deg %.4f min" 54 deg 59.3800 min
"%.6f degrees" 54.989667 degrees
-d *FMT*
Set the format for date/time tag values. Consult "strftime" man
page for *FMT* syntax. The default format is equivalent to
"%Y:%m:%d %H:%M:%S". This option has no effect on date-only or
time-only tags, ignores timezone information if present, and
currently doesn't apply when writing.
-D Show tag ID number in Decimal.
-e Print existing tags only -- don't calculate composite tags.
-E Escape characters in output values for HTML. Implied with the -h
option.
-ext *EXT* (or --ext *EXT*)
Process only files with (-ext) or without (--ext) a specified
extension. There may be multiple -ext and --ext options. Extensions
may begin with a leading '.', and case is not significant. For
example:
exiftool -ext .JPG DIR # process only JPG files
exiftool --ext crw --ext dng DIR # process all but CRW and DNG
exiftool --ext . DIR # ignore if no extension
-f Force printing of tags even if their values are not found.
-F[*OFFSET*]
Fix the base for maker notes offsets. A common problem with some
image editors is that offsets in the maker notes are not adjusted
properly when the file is modified. This may cause the wrong values
to be extracted for some maker note entries when reading the edited
file. This option allows an integer *OFFSET* to be specified for
adjusting the maker notes base offset. If no *OFFSET* is given,
ExifTool takes its best guess at the correct base. Note that
exiftool will automatically fix the offsets for images which store
original offset information (ie. newer Canon models). Offsets are
fixed permanently if used when writing an image.
-fast
Increase speed of extracting information from JPEG images. With
this option, ExifTool will not scan to the end of a JPEG image to
check for an AFCP or PreviewImage trailer. The speed benefits are
small when reading images directly from disk, but can be
substantial if piping images through a network connection.
-g[*NUM*]
Organize output by tag group. *NUM* specifies the group family
number, and may be 0 (general location), 1 (specific location) or 2
(category). If not specified, -g0 is assumed. Use the -listg option
to list all group names for a specified family.
-G[*NUM*]
Same as -g but print Group name for each tag.
-h Use HTML formatting for output. Implies -E option.
-H Show tag ID number in Hexadecimal.
-htmlDump[*OFFSET*]
Generate a dynamic web page containing a hex dump of the EXIF
information. This can be a very powerful tool for low-level
analysis of EXIF information. The -htmlDump option is also invoked
if the -v and -h options are used together. The verbose level
controls the maximum length of the blocks dumped. An *OFFSET* may
be given to specify the base for displayed offsets. If not
provided, the EXIF/TIFF base offset is used. Use -htmlDump0 for
absolute offsets. Currently only EXIF and TIFF information is
dumped, but the -u option can be used to give a raw hex dump of
other file formats.
-i *DIR*
Ignore specified directory name. May be multiple -i options.
-if *EXPR*
Specify a condition to be evaluated before processing each *FILE*.
*EXPR* is a Perl-like expression containing tag names prefixed by
"$" symbols. It is evaluated with the tags from each *FILE* in
turn, and processing proceeds only if the expression returns true.
Unlike Perl variable names, tag names are not case sensitive and
may contain a hyphen or a leading group name separated by a colon.
When multiple -if options are used, all conditions must be
satisfied to process the file. Below are a few examples:
# extract shutterspeed from all Canon images in a directory
exiftool -shutterspeed -if "$make eq 'Canon'" dir
# add one hour to all images created on or after Apr. 2, 2006
exiftool -alldates+=1 -if "$CreateDate ge '2006:04:02'" dir
# set EXIF ISO value if possible, unless it is set already
exiftool "-exif:iso<iso" -if "not $exif:iso" dir
-k Pause with the message "-- press any key --" before terminating.
This option is used to prevent the command window from closing when
run as a Windows drag and drop application.
-l Use long 2-line Canon-style output format.
-L Convert 16-bit Unicode characters in output to Windows Latin1
(cp1252) instead of the default UTF-8. When writing, -L is used to
specify that input text values are Latin1 instead of UTF-8.
-list, -listw, -listf, -listg[*NUM*], -listd
Print a list of all valid tag names (-list), all writable tag names
(-listw), all recognized file extensions (-listf), all tag groups
[in a specified family] (-listg[*NUM*]), or all deletable tag
groups (-listd). The -list and -listw options may be followed by an
additional argument of the form "-GROUP:All" to list all tags in a
specific group. With -listg, *NUM* may be given to specify the
group family, otherwise family 0 is assumed. For example:
-list # list all tag names
-list -EXIF:All # list all EXIF tags
-listw -XMP-dc:All # list all writable XMP-dc tags
-listf # list all recognized file extensions
-listg1 # list all groups in family 1
-listd # list all deletable groups
-m Ignore minor errors. Allows writing if some minor errors occur, or
extraction of embedded images that aren't in standard JPG format.
-n Read and write values as numbers instead of words. This option
disables the print conversion that is applied when extracting
values to make them more readable, and the inverse print conversion
when writing. For example:
> exiftool -Orientation -S a.jpg
Orientation: Rotate 90 CW
> exiftool -Orientation -S -n a.jpg
Orientation: 6
and the following two writing commands have the same effect
> exiftool -Orientation="Rotate 90 CW" a.jpg
> exiftool -Orientation=6 -n a.jpg
-o *OUTFILE* or *FMT*
Set the output file or directory name when writing information.
(Without this option, the original file is renamed to
"FILE_original" and output is sent to *FILE*.) The output file name
may also be specified using a *FMT* string in which %d, %f and %e
represent the directory, file name and extension of *FILE*. Also,
%c may be used to add a copy number. See the -w option for *FMT*
string examples.
The output file is taken to be a directory name if it already
exists as a directory or if the name ends with '/'. Output
directories are created if necessary. Existing files will not be
overwritten. Combining the -overwrite_original option with -o
causes the original source file to be erased after the output file
is successfully written.
A special feature of this option allows it to be used to create
certain types of files from scratch. Currently, this can only be
done with XMP and ICC/ICM files. The file is created from a
combination of information in *FILE* and tag values assigned on the
command line. This is done by specifying a file extension of
'.XMP', '.ICC' or '.ICM' for *OUTFILE*. The output file may be
created even if no *FILE* is specified, provided some appropriate
tag values are specified on the command line.
-overwrite_original
Overwrite the original *FILE* (instead of preserving it by adding
"_original" to the file name) when writing information to an image.
Caution: This option should only be used if you already have
separate backup copies of your image files. The overwrite is
implemented by renaming a temporary file.
-overwrite_original_in_place
Similar to the -overwrite_original option except that an extra step
is added to allow the original file attributes to be preserved. On
a Macintosh for example, this preserves the original file type,
creator and icon. This is implemented by copying the contents of a
temporary file over the original, then deleting the temporary file.
The extra step results in slower performance, so the
-overwrite_original option should be used instead unless necessary.
-p *FMTFILE* or *STR*
Print output in the format specified by the given file or string
(and ignore other format options). Tag names in the format file or
string begin with a "$" symbol and may contain an optional group
name. Case is not significant. Braces "{}" may be used around the
tag name to separate it from subsequent text. Use $$ to represent a
"$" symbol. $/ may be used for a newline. In the file, lines
beginning with "#" are ignored. For example, this format file:
# this is a comment line
File $FileName was created on $DateTimeOriginal
(f/$Aperture, ${ShutterSpeed}s, ISO $EXIF:ISO)
produces output like this:
File test.jpg was created on 2003:10:31 15:44:19
(f/5.6, 1/60s, ISO 100)
If a tag does not exist, the output value is set to '-' if the -f
option is used. Otherwise a minor warning is issued and the line
with the missing tag is not printed. However, if the -m option is
used, minor warnings are ignored and the line is printed with an
empty tag value.
-P Preserve date/time of original file ("FileModifyDate") when
writing.
-q Quiet processing. One -q suppresses normal informational messages,
and a second -q suppresses warnings as well. Error messages can not
be suppressed, although minor errors may be downgraded to warnings
with the -m option.
-r Recursively scan subdirectories. Only meaningful if *FILE* is a
directory name.
-s Print tag names instead of descriptions. This is the short output
format. Add up to 3 -s options for even shorter formats:
-s - print tag names instead of descriptions
-s -s - no extra spaces to column-align values
-s -s -s - print values only
Also effective when combined with -t or -h options.
-S Very short format. The same as two -s options. Extra spaces used to
column-align values are not printed.
-ScanForXMP
Scan all files (even unrecognized formats) for XMP information
unless found already. When combined with the -fast option, only
unrecognized file types are scanned. Warning: It can be time
consuming to scan large files.
-t Output a tab-delimited list of description/values (useful for
database import). May be combined with -s to print tag names
instead of descriptions, or -S to print tag values only,
tab-delimited on a single line.
-T Output tag values in Table form. (Equivalent to -t -S -q -f.)
-TagsFromFile *SRCFILE* or *FMT*
Copy tag values from *SRCFILE* to *FILE*. Tag names on the command
line after this option specify the tags to be copied, or excluded
from the copy. If no tags are specified, then all tags from the
source file are copied. More than one -TagsFromFile option may be
used to copy tags from multiple files.
By default, this option will commute information between same-named
tags in different groups and write each tag to the preferred group.
This allows information to be automatically translated when copying
between images of different formats. However, if a group name is
specified for a tag then the information is written to the original
group (unless redirected to another group, see below). This works
even if "All" is used as a group name, so "-All:All" is used to
specify that all information be copied to the same group in the
destination file.
*SRCFILE* may be the same as *FILE* to move information around
within a file. In this case, "@" may be used to represent the
source file (ie. "-TagsFromFile @"), permitting this feature to be
used for batch processing multiple files (see note 3 below).
Specified tags are then copied from each file in turn as it is
rewritten. For advanced batch use, the source file name may also be
specified using a *FMT* string in which %d, %f and %e represent the
directory, file name and extension of *FILE*. See -w option for
*FMT* string examples.
A powerful redirection feature allows a destination tag to be
specified for each extracted tag. With this feature, information
may be written to a tag with a different name or group. This is
done using "-*SRCTAG*>*DSTTAG*" on the command line after
-TagsFromFile ("-*DSTTAG*<*SRCTAG*" also works). Note that this
argument must be quoted to prevent shell redirection, and there is
no "=" sign as when assigning new values. Both source and
destination tags may be prefixed by a group name, and "All" or "*"
may be used as a tag or group name. If no destination group is
specified, the information is written to the preferred group. As a
convenience, "-TagsFromFile @" is assumed for any redirected tags
which are specified without a prior -TagsFromFile option. Copied
tags may also be added or deleted from a list with arguments of the
form "-*SRCTAG*+>*DSTTAG*" or "-*SRCTAG*->*DSTTAG*".
An extension of the redirection feature allows strings involving
tag names to be used on the right hand side of the "<" symbol with
the syntax "-*DSTTAG*<*STR*", where tag names in *STR* are prefixed
with a "$" symbol. See the -p option for more details about this
syntax. Strings starting with a "=" sign must insert a single space
after the "<" to avoid confusion with the "<=" syntax which would
otherwise attempt to set the tag value from the contents of a file.
A single space at the start of the string is removed if it exists,
but all other whitespace is preserved.
See "COPYING EXAMPLES" for examples using -TagsFromFile.
Notes:
1) Be aware of the difference between excluding a tag from being
copied (--*TAG*), and deleting a tag (-*TAG*=). Excluding a tag
prevents it from being copied to the destination image, but
deleting will remove a pre-existing tag from the image.
2) The maker note information is copied as a block, so it isn't
affected like other information by subsequent tag assignments on
the command line. Also, since the PreviewImage referenced from the
maker notes may be rather large, it is not copied, and must be
transferred separately if desired.
3) When performing complex batch processing, it is important to
note that the order of operations is different for tags copied in
batch mode. In general, tags are copied from batch-mode files after
all other command-line arguments have been applied. (The exception
is that a group delete is always performed last if there are no
subsequent tag assignments on the command line.) For example, the
following two commands are not equivalent:
# (not batch mode): Sets xmp:title to "NEW"
exiftool -tagsfromfile a.jpg -xmp:title -xmp:title=NEW a.jpg
# (batch mode): Preserves original title if it exists
exiftool -tagsfromfile @ -xmp:title -xmp:title=NEW a.jpg
-u Extract values of unknown tags. Add another -u to also extract
unknown information from binary data blocks.
-U Extract values of unknown tags as well as unknown information from
binary data blocks. This is the same as two -u options.
-v[*NUM*]
Print verbose messages. *NUM* specifies the level of verbosity in
the range 0-5, with higher numbers being more verbose. If *NUM* is
not given, then each -v option increases the level of verbosity by
1. This option suppresses normal console output unless specific
tags are being extracted. -v0 is used when writing to print only
the processed file names, and the "Nothing changed" message for
files that were not modified.
-ver Print version number and exit.
-w *EXT* or *FMT*
Write console output to a file with name ending in *EXT* for each
source file. The output file name is obtained by replacing the
source file extension (including the '.') with the specified
extension (and a '.' is added to the start of *EXT* if it didn't
contain one). Alternatively, a *FMT* string may be used to give
more control over the output file name and directory. In the format
string, %d, %f and %e represent the directory, filename and
extension of the source file, and %c represents a copy number which
is automatically incremented if the file already exists. %d
includes the trailing '/' if necessary, but %e does not include the
leading '.'. For example:
-w %d%f.txt # same effect as "-w txt"
-w dir/%f_%e.out # write files to "dir" as "FILE_EXT.out"
-w dir2/%d%f.txt # write to "dir2", keeping dir structure
-w a%c.txt # write to "a.txt" or "a1.txt" or "a2.txt"...
Existing files will not be overwritten, and output directories are
created automatically if necessary.
Note: In a Windows BAT file the '%' character is represented by
"%%", so an argument like "%d%f.txt" is written as "%%d%%f.txt".
Advanced features: A substring of the original file name, directory
or extension may be taken by specifying a field width immediately
following the '%' character. If the width is negative, the
substring is taken from the end. The substring position (characters
to ignore at the start or end of the string) may be given by a
second optional value after a decimal point. For example:
Input File Name Format Specifier Output File Name
---------------- ---------------- ----------------
Picture-123.jpg %7f.txt Picture.txt
Picture-123.jpg %-.4f.out Picture.out
Picture-123.jpg %7f.%-3f Picture.123
Picture-123a.jpg Meta%-3.1f.txt Meta123.txt
For %c, these modifiers have a different effects. If a field width
is given, the copy number is padded with zeros to the specified
width. A leading '-' adds a dash before the copy number, and a '+'
adds an underline. By default, a copy number of zero is omitted,
but this can be changed by adding a decimal point to the modifier.
For example:
-w A%-cZ.txt # AZ.txt, A-1Z.txt, A-2Z.txt ...
-w B%5c.txt # B.txt, B00001.txt, B00002.txt ...
-w C%.c.txt # C0.txt, C1.txt, C2.txt ...
-w D%-.c.txt # D-0.txt, D-1.txt, D-2.txt ...
-w E%-.4c.txt # E-0000.txt, E-0001.txt, E-0002.txt ...
-w F%+c.txt # F.txt, F_1.txt F_2.txt ...
-w G%-lc.txt # G.txt, G-b.txt, G-c.txt ...
All format codes may also be modified by 'l' or 'u' to specify
lower or upper case respectively (ie. "%le" for a lower case file
extension). When used to modify the copy number, the numbers are
changed to an alphabetical base (ie. as with "%lc" in the last
example above).
This same *FMT* syntax is used with the -o and -TagsFromFile
options, although %c is only valid for output file names.
-x *TAG*
Exclude the specified tag. There may be multiple -x options. This
has the same effect as --*TAG* on the command line. May also be
used following a -TagsFromFile option to exclude tags from being
copied.
-z When reading, causes information to be extracted from .gz and .bz2
compressed images. (Only one image per archive.) When writing,
causes compressed information to be written if supported by the
image format. (ie. The PNG format supports compressed text.)
Advanced Options
The following options allow complex processing to be performed with a
single command without the need for additional scripting. This may be
particularly useful for implementations such as Windows drag-and-drop
applications. These options may also be used to improve performance in
multi-pass processing by reducing the overhead required to load exiftool
for each invocation.
-common_args
Specifies that all arguments following this option are common to
all executed commands when -execute is used. This is the only
option that may not be used inside a -@ *ARGFILE*.
-execute
Execute command for all arguments up to this point on the command
line. Allows multiple commands to be executed from a single command
line.
-srcfile *FMT*
Specify a different source file to be processed based on the name
of the original file. This may be useful in some special situations
for processing related preview images or sidecar files. See the -w
option for a description of the *FMT* syntax. Note that file name
*FMT* strings for all options are based on the original file name
specified on the command line, not the name of the source file
specified by -srcfile.
READING EXAMPLES
exiftool -a -u -g1 a.jpg
Print all meta information in an image, including duplicate and
unknown tags, sorted by group (for family 1).
exiftool -common dir
Print common meta information for all images in "dir".
exiftool -s -ImageSize -ExposureTime b.jpg
Print ImageSize and ExposureTime tag names and values.
exiftool -l -canon c.jpg d.jpg
Print standard Canon information from two image files.
exiftool -r -w .txt -common pictures
Recursively extract common meta information from files in
"pictures" directory, writing text output into files with the same
names but with a ".txt" extension.
exiftool -p "$filename has date $dateTimeOriginal" -q -f dir
Print one line of output containing the file name and
DateTimeOriginal for each image in directory "dir".
exiftool -b -ThumbnailImage image.jpg > thumbnail.jpg
Save thumbnail image from "image.jpg" to a file called
"thumbnail.jpg".
exiftool -b -PreviewImage 118_1834.JPG > preview.jpg
Extract preview image from JPG file and write it to "preview.jpg".
exiftool -b -JpgFromRaw -w _JFR.JPG -ext CRW -r .
Recursively extract JPG image from all Canon CRW files in the
current directory, adding "_JFR.JPG" for the name of the output JPG
files.
exiftool -d "%r %a, %B %e, %Y" -DateTimeOriginal -S -s *.jpg
Print formatted date/time for all JPG files in a directory.
exiftool -IFD1:XResolution -IFD1:YResolution
Extract image resolution from EXIF IFD1 information (thumbnail
image IFD).
exiftool -xmp -b a.jpg > out.xmp
Extract complete XMP data record intact from "a.jpg" and write it
to "out.xmp" using the special "XMP" tag (see the Extra tags in
Image::ExifTool::TagNames).
exiftool -icc_profile -b -w icc image.jpg
Save complete ICC_Profile from an image to an output file with the
same name and an extension of ".icc".
exiftool -htmldump -w tmp/%f_%e.html t/images
Generate HTML pages from a hex dump of EXIF information in all
images from the "t/images" directory. The output HTML files are
written to the "tmp" directory (which is created if it didn't
exist), with names of the form "FILENAME_EXT.html".
WRITING EXAMPLES
Note that quotes are necessary around arguments which contain certain
special characters such as ">", "<" or any white space. These quoting
techniques are shell dependent, but the examples below will work in
the Windows CMD shell.
exiftool -Comment="This is a new comment" dst.jpg
Write new comment to a JPG image (replaces any existing comment).
exiftool -comment= -o newdir *.jpg
Remove comment from all JPG images in the current directory,
writing the modified images to a new directory.
exiftool -keywords=EXIF -keywords=editor dst.jpg
Replace existing keyword list with two new keywords ("EXIF" and
"editor").
exiftool -Keywords+=word -o newfile.jpg src.jpg
Copy a source image to a new file, and add a keyword ("word") to
the current list of keywords.
exiftool -credit-=xxx dir
Delete Credit information from all files in a directory where the
Credit value was ("xxx").
exiftool -all= dst.jpg
Delete all meta information from an image.
exiftool -all= -comment="lonely" dst.jpg
Delete all meta information from an image and add a comment back
in. (Note that the order is important: -comment="lonely" -all=
would also delete the new comment.)
exiftool -all= --jfif:all dst.jpg
Delete all meta information except JFIF group from an image.
exiftool -Photoshop:All= dst.jpg
Delete Photoshop meta information from an image (note that the
Photoshop information also includes IPTC).
exiftool -r -XMP-crss:all= DIR
Recursively delete all XMP-crss information from images in a
directory.
exiftool "-ThumbnailImage<=thumb.jpg" dst.jpg
Set the thumbnail image from specified file (Note: The quotes are
neccessary to prevent shell redirection).
exiftool "-JpgFromRaw<=%d%f_JFR.JPG" -ext CRW -r .
Recursively write JPEG images with filenames ending in "_JFR.JPG"
to the JpgFromRaw tag of like-named files with extension ".CRW" in
the current directory. (This is the inverse of the "-JpgFromRaw"
command of the "READING EXAMPLES" section above.)
exiftool -DateTimeOriginal-="0:0:0 1:30:0" dir
Adjust original date/time of all images in directory "dir" by
subtracting one hour and 30 minutes. (This is equivalent to
"-DateTimeOriginal-=1.5". See Image::ExifTool::Shift.pl for
details.)
exiftool -createdate+=3 -modifydate+=3 a.jpg b.jpg
Add 3 hours to the CreateDate and ModifyDate timestamps of two
images.
exiftool -AllDates+=1:30 -if "$make eq 'Canon'" dir
Shift the values of DateTimeOriginal, CreateDate and ModifyDate
forward by 1 hour and 30 minutes for all Canon images in a
directory. (The AllDates tag is provided as a shortcut for these
three tags, allowing them to be accessed via a single tag.)
exiftool -xmp:city=Kingston image1.jpg image2.nef
Write a tag to the XMP group of two images. (Without the "xmp:"
this tag would get written to the IPTC group since "City" exists in
both, and IPTC is preferred by default.)
exiftool -LightSource-="Unknown (0)" dst.tiff
Delete "LightSource" tag only if it is unknown with a value of 0.
exiftool -whitebalance-=auto -WhiteBalance=tung dst.jpg
Set "WhiteBalance" to "Tungsten" only if it was previously "Auto".
exiftool -o %d%f.xmp dir
Create XMP meta information data files for all images in "dir".
exiftool -o test.xmp -owner=Phil -title="XMP File"
Create an XMP data file only from tags defined on the command line.
exiftool "-ICC_Profile<=%d%f.icc" image.jpg
Write ICC_Profile to an image from a ".icc" file of the same name.
COPYING EXAMPLES
These examples demonstrate the ability to copy tag values between files.
exiftool -TagsFromFile src.crw dst.jpg
Copy the values of all writable tags from "src.crw" to "dst.jpg",
writing the information to the preferred groups.
exiftool -TagsFromFile src.jpg -all:all dst.jpg
Copy the values of all writable tags from "src.jpg" to "dst.jpg",
preserving the original tag groups.
exiftool -all= -tagsfromfile src.jpg -exif:all dst.jpg
Erase all meta information from "dst.jpg" image, then copy EXIF
tags from "src.jpg".
exiftool -tagsfromfile a.jpg out.xmp
Copy meta information "a.jpg" to an XMP data file. If the XMP data
file "out.xmp" already exists, it will be updated with the new
information. Otherwise the XMP data file will be created. Only XMP,
ICC and MIE files may be created like this (other file types may be
edited but not created). See "WRITING EXAMPLES" above for another
technique to generate XMP files.
exiftool -tagsFromFile a.jpg -XMP:All= -ThumbnailImage= -m b.jpg
Copy all meta information from "a.jpg" to "b.jpg", deleting all XMP
information and the thumbnail image from the destination.
exiftool -TagsFromFile src.jpg -title -author=Phil dst.jpg
Copy title from one image to another and set a new author name.
exiftool -TagsFromFile a.jpg -ISO -TagsFromFile b.jpg -comment dst.jpg
Copy ISO from one image and Comment from another image to a
destination image.
exiftool -tagsfromfile src.jpg -exif:all --subifd:all dst.jpg
Copy only the EXIF information from one image to another, excluding
SubIFD tags.
exiftool "-DateTimeOriginal>FileModifyDate" dir
Use the original date from the meta information to set the same
file's filesystem modification date for all images in a directory.
(Note that "-TagsFromFile @" is assumed if no other -TagsFromFile
is specified when redirecting information as in this example.)
exiftool -TagsFromFile src.jpg "-all>xmp:all" dst.jpg
Copy all possible information from "src.jpg" and write in XMP
format to "dst.jpg".
exiftool -@ iptc2xmp.args -iptc:all= a.jpg
Translate IPTC information to XMP with appropriate tag name
conversions, and delete the original IPTC information from an
image. This example uses iptc2xmp.args, which is a file included
with the ExifTool distribution that contains the required arguments
to convert IPTC information to XMP format. Also included with the
distribution is xmp2iptc.args, which performs the inverse
conversion.
exiftool -tagsfromfile %d%f.CRW -r -ext JPG dir
Recursively rewrite all "JPG" images in "dir" with information
copied from the corresponding "CRW" images in the same directories.
exiftool "-make+>keywords" image.jpg
Add camera make to list of keywords.
exiftool "-comment<ISO=$exif:iso Exposure=${shutterspeed}" dir
Set the Comment tag of all images in "dir" from the values of the
EXIF:ISO and ShutterSpeed tags. The resulting comment will be in
the form "ISO=100 Exposure=1/60".
exiftool -TagsFromFile src.jpg -icc_profile dst.jpg
Copy ICC_Profile from one image to another.
exiftool -if $jpgfromraw -b -jpgfromraw -w %d%f_%ue.jpg -execute -if
$previewimage -b -previewimage -w %d%f_%ue.jpg -execute -tagsfromfile @
-srcfile %d%f_%ue.jpg -overwrite_original -common_args --ext jpg DIR
[Advanced] Extract JpgFromRaw or PreviewImage from all but JPG
files in DIR, saving them with file names like "image_EXT.jpg",
then add all meta information from the original files to the
extracted images. Here, the command line is broken into three
sections (separated by -execute options), and each is executed as
if it were a separate command. The -common_args option causes the
"--ext jpg DIR" arguments to be applied to all three commands, and
the -srcfile option allows the extracted JPG image to be the source
file for the third command (whereas the RAW files are the source
files for the other two commands).
RENAMING EXAMPLES
By writing the "FileName" and "Directory" tags, files are renamed and/or
moved to new directories. This can be particularly useful and powerful
for organizing files by date when combined with the -d option. New
directories are created as necessary, but existing files will not be
overwritten. The format codes %d, %f and %e may be used in the new file
name to represent the directory, name and extension of the original
file, and %c may be used to add a copy number if the file already exists
(see the -w option for details). Note that if used within a date format
string, an extra '%' must be added to pass these codes through the
date/time parser. (And further note that in a Windows batch file, all
'%' characters must also be escaped, so in this extreme case "%%%%f" is
necessary to pass a simple "%f" through the two levels of parsing.)
exiftool -filename=new.jpg dir/old.jpg
Rename "old.jpg" to "new.jpg" in directory "dir".
exiftool -directory=%e dir
Move all files from directory "dir" into directories named by the
original file extensions.
exiftool "-Directory<DateTimeOriginal" -d %Y/%m/%d dir
Move all files in "dir" into a directory hierarchy based on year,
month and day of "DateTimeOriginal". ie) This command would move
the file "dir/image.jpg" with a "DateTimeOriginal" of "2005:10:12
16:05:56" to "2005/10/12/image.jpg".
exiftool "-filename<%f_${focallength}.%e" dir
Rename all files in "dir" by adding FocalLength to the file name.
exiftool "-FileName<CreateDate" -d %Y%m%d_%H%M%S%%-c.%%e dir
Rename all images in "dir" according to the "CreateDate" date and
time, adding a copy number with leading '-' if the file already
exists ("%-c"), and preserving the original file extension (%e).
Note the extra '%' necessary to escape the filename codes (%c and
%e) in the date format string.
exiftool -r "-FileName<CreateDate" -d %Y-%m-%d/%H%M_%%f.%%e dir
Both the directory and the filename may be changed together via the
"FileName" tag if the new "FileName" contains a '/'. The example
above recursively renames all images in a directory by adding a
"CreateDate" timestamp to the start of the filename, then moves
them into new directories named by date.
exiftool "-FileName<${CreateDate}_$filenumber.jpg" -d %Y%m%d *.jpg
Set the filename of all JPG images in the current directory from
the CreateDate and FileNumber tags, in the form
"20060507_118-1861.jpg".
PIPING EXAMPLES
type a.jpg | exiftool -
Extract information from stdin.
exiftool image.jpg -thumbnailimage -b | exiftool -
Extract information from an embedded thumbnail image.
type a.jpg | exiftool -iptc:keywords+=fantastic - > b.jpg
Add an IPTC keyword in a pipeline, saving output to a new file.
wget -qO - http://a.domain.com/bigfile.jpg | exiftool -fast -
Extract information from an image over the internet using the GNU
wget utility. The -fast option prevents exiftool from scanning for
trailer information, so only the meta information header is
transferred.
exiftool a.jpg -thumbnailimage -b | exiftool -comment=wow - | exiftool
a.jpg "-thumbnailimage<=-"
Add a comment to an embedded thumbnail image. (Why anyone would
want to do this I don't know, but I've included this as an example
to illustrate the flexibility of ExifTool.)
BUGS
ExifTool does not handle information stored in the resource fork on
Macintosh filesystems.
AUTHOR
Copyright 2003-2008, Phil Harvey
This is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
SEE ALSO
Image::ExifTool(3pm), Image::ExifTool::TagNames(3pm),
Image::ExifTool::Shortcuts(3pm), Image::ExifTool::Shift.pl
</exiftool --help>
Und folglich:
exiftool "-DateTimeOriginal>FileModifyDate" dir
Use the original date from the meta information to set the same
file's filesystem modification date for all images in a directory.
(Note that "-TagsFromFile @" is assumed if no other -TagsFromFile
is specified when redirecting information as in this example.)
- das war doch, was Du wolltest, oder?
Ciao,
Ralf Teschenbaum
vielen Dank, die Seite von Phil Harvey hatte ich schon zu Rate gezogen.
Volker Bartheld schrieb:
> Und folglich:
>
> exiftool "-DateTimeOriginal>FileModifyDate" dir
> Use the original date from the meta information to set the same
> file's filesystem modification date for all images in a directory.
> (Note that "-TagsFromFile @" is assumed if no other -TagsFromFile
> is specified when redirecting information as in this example.)
>
> - das war doch, was Du wolltest, oder?
Ich habe es in Geosetter ausprobiert, da wird auch dieses Beispiel zitiert
und erl�utert, wie man es in Geosetter einbindet. Allerdings funktioniert es
nicht und ich habe Zweifel, ob die Argumente �berhaupt passen - komme aber
nicht auf die Argumente f�r den Umgang mit dem Dateisystem.
Zum einen suche ich:
Exif:DateCreated welches im Windows-Dateisystem (NTFS oder FAT32) den Wert
im Dateisystem in die Eigenschaft [FileObjekt].DateCreated des
Windows-Filesystemobjektes zu schreiben.
Weiterhin brauche ich den Wert der letzten �nderung aus EXIF um ihn in die
Eigenschaft [FileObjekt].DateLastModified des Windows-Filesystemobjektes zu
schreiben.
Gru�, Ralf.
Ralf Teschenbaum
Guido Ostkamp schrieb:
> Ralf Teschenbaum <inv...@home.de> wrote:
>> ich suche nun schon den halben Tag nach einer Mï¿œglichkeit, um mit
>> ExifTool das Erstelldatum und das Datum der letzten Modifikation aus
>> den EXIF-Daten einer Bilddatei (CR2) auszulesen um damit die von
>> Windows im Dateisystem gespeicherten Werte fï¿œr 'Erstelldatum'
>> (.DateCreated) und 'Letzte ï¿œnderung' (.DateLastModified) zu
>> ï¿œberschreiben.
>
> Aus der Manpage:
>
> exiftool '-DateTimeOriginal>FileModifyDate' dir
> Use the original date from the meta information to set the same
> file's filesystem modification date for all images in a directory.
> (Note that "-TagsFromFile @" is assumed if no other -TagsFromFile
> is specified when redirecting information as in this example.)
Ich brauche es in Geosetter, dort wird dann nach der Bearbeitung durch
Geosetter noch einmal ExifTool aufgerufen und der von Dir beschriebene
Befehl abgesetzt. Nur mein FAT32 will den Wert nicht ï¿œbernehmen.
> Ansonsten ist 'Perl' Dein Freund:
Meiner leider nicht :-(
> <http://search.cpan.org/~wyant/Win32API-File-Time-0.006/lib/Win32API/File/Time.pm>
>
> Damit kannst Du nach Auslesen der Werte via exiftool auch alle drei
> Werte getrennt beeinflussen.
Vielleicht muss ich ï¿œber ein VB-Skript gehen und ExifTool nur zum lesen
verwenden.
Danke, Ralf.
Ralf Teschenbaum
> Ich denke, Windows macht das ganz perfekt. Das Erstellungsdatum einer Datei
> hat nichts mit dem Inhalt der Datei zu tun. Ein Erstellungsdatum des Inhalts
> ergibt ja meistes keinen Sinn. Wenn du einen Text schreibst, wann wurde der
> erstellt? Wenn das erste Zeichen geschrieben ist, wenn die H�lfte fertig ist
> oder wenn das letzte Zeichen geschrieben ist.
Windows unterscheidet hier und das Erstellungsdatum ist tats�chlich das
Datum, an dem die Datei erstmalig durch die Anwendung auf der Festplatte
erstellt wurde oder durch Kopieren einer vorhandenen Datei erzeugt wurde.
Das andere ist das Datum der letzten �nderung.
Windows hat da eine Methode, und ich m�chte eine andere Methode zur
Datierung der Datei verwenden.
> Bei Bildern macht es ausnamnsweise
> Sinn und deshalb ist das Aufnahmedatum als Exif-Information in den Bilddaten
> abgespeichert und der Windows-Explorer zeigt, wenn gew�nchst, auch dieses Datum
> neben Erstellungs- und �nderungsdatum an.
Das ist richtig, dazu muss der Explorer dann aber die Datei selbst lesen
k�nnen. Bei mir wird f�r CR2 aber weder Datum der Bilderstellung noch das
Kameramodell angezeigt.
> Das Kopieren des Aufnahmedatums zu Erstellungs- und �nderungsdatum dagegen
> macht wirklich keinen Sinn:
Da bin ich anderer Meinung. Windows kennt die Dateieigenschaft Datum und
jeder Anwender wei�, wie man Dateien gem�� dieser Eigenschaft suchen und
sortieren kann. Was spricht also gegen die Nutzung dieser popul�ren
Dateieigenschaft?
> Bei jedem Kopieren der Datei wird das Erstellungs-
> datum korrekterweise auf das Datum des Kopiervorgangs gesetzt und das �nderungsdatum
> sollte ja das Datum der letzten �nderung und nicht das Aufnahmedatum anzeigen
Da ich an dieser Stelle wegen der gro�en Datenmengen f�r meine Duplikate ein
Synchronisationsprogramm verwende, setzt dieses auch das Dateidatum der
Kopie in der gew�nschten Art. Auch mein CD-Brennprogramm setzt standardm��ig
das Datum der Originaldatei und nicht das des Kopiervorgangs.
> (falls keine �nderungen vorgenommen wurden, ist das �nderungsdatum ja identisch
> mit dem Aufnahmedatum). Was ich jedoch als sinnvoll empfinde ist das Umbenennen
> des Namens von einem nichtssagenden IMG01234.jpg nach yyyymmmdd-hhmmss.jpg
> (Aufnahmedatum).
Da wird es dann schon wieder problematisch, wenn die Serienbildfunktion
genutzt wurde, da reicht dann die Sekunde nicht mehr aus - was ich sagen
will: Meine Methode ist nicht optimal, aber andere Methoden haben auch ihre
Schw�chen.
Gru�, Ralf.
"Dr. Matthias Dräger"
vll. gehts mit Exifer (http://www.exifer.friedemann.info/
Umbenennen/datieren und Kopieren) oder XNView (Werkzeuge - Dateidatum
und -uhrzeit �ndern)
LG MD
Herbert Kleebauer
> Am 2009-07-14 08:41 CEST schrieb Herbert Kleebauer:
>
> > des Namens von einem nichtssagenden IMG01234.jpg nach yyyymmmdd-hhmmss.jpg
> > (Aufnahmedatum).
>
Welche Information steckt denn in dem "_IMG01234"-Teil?
Ich wei� nicht wem man die tollen Namen "123CANON" (f�r
die Ordner) und "IMG_1234.JPG" (f�r die Bilder) zu
verdanken haben, aber ich vermute mal, Schuld daran ist
Microsoft weil f�r lange Namen im FAT Filesystem m�glicher-
weise Lizenzgeb�hren f�llig sind.
Aber selbst im 8.3 Format h�tte man sinnvolle Namen
verwenden k�nnen, z.B.
yyyymmdd f�r die Ordner und hhmmssnn.jpg f�r die Dateien.
Dieter Lefeling
> Ich wei� nicht wem man die tollen Namen "123CANON" (f�r
> die Ordner) und "IMG_1234.JPG" (f�r die Bilder) zu
> verdanken haben, aber ich vermute mal, Schuld daran ist
> Microsoft weil f�r lange Namen im FAT Filesystem m�glicher-
> weise Lizenzgeb�hren f�llig sind.
Nein, das ist ganz einfach der DCF-Standard.
DCF = design rule for camera file sytem.
Vgl. dazu etwa <www.exif.org/dcf.PDF> und insb. 3.2.1
> Aber selbst im 8.3 Format h�tte man sinnvolle Namen
> verwenden k�nnen, z.B.
>
> yyyymmdd f�r die Ordner und hhmmssnn.jpg f�r die Dateien.
Wie gesagt, es gibt einen Standard, der die Datenstruktur festlegt.
Bedenke immer, dass nicht nur Du und Deine Kamera die Speicherkarte
lesen sollen, sondern ggf. auch das Annahmeterminal im Fotoladen oder
der kleine handliche Fotodrucker, der direkt von der Karte druckt, und
was sonst nicht noch alles. Daher gibt es diesen Standard.
"Ja, aber man haette doch auch viel besser..." <hier Idee einsetzen>.
Ja, haette man bestimmt so machen koennen.
Aber dann schreib das nicht hier, sondern sage es "denen". <8)
Dieter
Wolfgang Exler
>Ich wei� nicht wem man die tollen Namen "123CANON" (f�r
>die Ordner) und "IMG_1234.JPG" (f�r die Bilder) zu
>verdanken haben,
dem EXIF Konsortium, die haben das grob definiert
> aber ich vermute mal, Schuld daran ist
>Microsoft weil f�r lange Namen im FAT Filesystem m�glicher-
>weise Lizenzgeb�hren f�llig sind.
Nee, diesmal nicht.
Wolfgang
--
http://www.d-r-f.de die Webseite zur Newsgroup de.rec.fotografie
http://faq.d-r-f.de die FAQ der Newsgroup de.rec.fotografie
Peter T.
> Hallo,
>
> ich suche nun schon den halben Tag nach einer M�glichkeit, um mit
> ExifTool das Erstelldatum und das Datum der letzten Modifikation aus
> den EXIF-Daten einer Bilddatei (CR2) auszulesen um damit die von
> Windows im Dateisystem gespeicherten Werte f�r 'Erstelldatum'
> (.DateCreated) und 'Letzte �nderung' (.DateLastModified) zu
> �berschreiben.
>
> Hat jemand eine Idee, wie das in ExifTool geht?
>
> Danke, Ralf.
Hallo Ralf,
der Thread ist jetzt zwar nicht mehr ganz aktuelle, aber bei mir klappt
das so:
exiftool "-DateTimeOriginal>FileModifyDate" DSC_5251.NEF
Wichtig sind die Anf�hrungszeichen, einfache Hochkommas funktionieren
nicht.
Gr�sse
Peter
Ralf Teschenbaum
> Ralf Teschenbaum wrote:
>
>> Hallo,
>>
>> ich suche nun schon den halben Tag nach einer Mï¿œglichkeit, um mit
>> ExifTool das Erstelldatum und das Datum der letzten Modifikation aus
>> den EXIF-Daten einer Bilddatei (CR2) auszulesen um damit die von
>> (.DateCreated) und 'Letzte ï¿œnderung' (.DateLastModified) zu
>> ï¿œberschreiben.
>>
>>
>> Danke, Ralf.
>
> Hallo Ralf,
>
> der Thread ist jetzt zwar nicht mehr ganz aktuelle, aber bei mir klappt
> das so:
>
> exiftool "-DateTimeOriginal>FileModifyDate" DSC_5251.NEF
>
> nicht.
Danke Peter, ich hab's inzwischen anders gelï¿œst. Ursprï¿œnglich habe ich es in
Geosetter versucht (da kann man zusï¿œtzliche Kommandos an ExifTool absetzen)
und da hat es nicht funktioniert. Der Grund war aber, dass es in Geosetter
noch eine zweite, konkurrierende Einstellung gibt ("Dateidatum beim
Speichern erhalten"), die nicht aktiviert sein darf.
Inzwischen habe ich auch gesehen, das XnView eine solche Funktion hat und
weil das Erstelldatum beim Kopieren (z.B. Sicherung) auf das Datum des
Kopiervorgangs gesetzt wird, ist es nicht die dauerhafteste Idee, das
Erstelldatum auf das Aufnahmedatum zu setzen.
Viele Grￜￜe, Ralf.