TIFF library warning

[J. Schneider]

Hello,
when working with tiff images I experience a TIFF library warning while
loading the images. Later on everything works normally. Is there
anything wrong about my images or should I file this as a bug?

I'm working with the latest binary windows Snapshot on WinXP SP2, but I
had this with all previous versions.
My tifs are generated from jpgs with Photoshop, no compression used.
(Usually I work with jpgs and in case I need to mask parts out I open
them in Photoshop, add an alpha channel, edit it and save as tif. The
error occurs with alpha channel as well as without.)

regards
Joachim

log from a 3 images project: 10 x this message:
19:46:03: tiff module: TIFFReadDirectory
19:46:03: TIFF library warning.

[Erik Krause]

On Friday, January 25, 2008 at 20:07, J. Schneider wrote:

> when working with tiff images I experience a TIFF library warning while
> loading the images. Later on everything works normally. Is there
> anything wrong about my images or should I file this as a bug?

No, there is nothing wrong with your images. If the warnings pop up
as a box, this is a bug. If they simply show up in the console
output, this is normal.

> I'm working with the latest binary windows Snapshot on WinXP SP2, but I
> had this with all previous versions.
> My tifs are generated from jpgs with Photoshop, no compression used.
> (Usually I work with jpgs and in case I need to mask parts out I open
> them in Photoshop, add an alpha channel, edit it and save as tif. The
> error occurs with alpha channel as well as without.)

Photoshop writes some non-standard tags to the TIFF, that causes the
warnings.

best regards
Erik Krause
http://www.erik-krause.de

[J. Schneider]

Erik Krause schrieb:

> On Friday, January 25, 2008 at 20:07, J. Schneider wrote:
>
>> when working with tiff images I experience a TIFF library warning
>> while loading the images. Later on everything works normally. Is
>> there anything wrong about my images or should I file this as a
>> bug?
>
> No, there is nothing wrong with your images. If the warnings pop up
> as a box, this is a bug. If they simply show up in the console
> output, this is normal.

Though I don't know what the console would be in the case of hugin: The
warning pops up as a box to dismiss with OK (or so).

> Photoshop writes some non-standard tags to the TIFF, that causes the
> warnings.

I suspected something the like, that's why I mentioned the application.
So the bug is the way the warning is issued? OK, I will file this bug.

regards
Joachim

[Brent]

I too am seeing TIFF warnings. The show details box cuts off most of
the message, even if the window is resized, but if I save the output
to a log, the contents are:

16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:12: tiff module: TIFFReadDirectory
16:23:12: TIFF library warning.
16:23:14: tiff module: TIFFReadDirectory
16:23:14: TIFF library warning.
16:23:14: tiff module: TIFFReadDirectory
16:23:14: TIFF library warning.
16:23:15: tiff module: TIFFReadDirectory
16:23:15: TIFF library warning.
16:23:15: tiff module: TIFFReadDirectory
16:23:15: TIFF library warning.
16:23:18: tiff module: TIFFReadDirectory
16:23:18: TIFF library warning.
16:23:18: tiff module: TIFFReadDirectory
16:23:18: TIFF library warning.
16:23:21: tiff module: TIFFReadDirectory
16:23:21: TIFF library warning.
16:23:21: tiff module: TIFFReadDirectory
16:23:21: TIFF library warning.


In my case, these are 16-bit tiff files created from dcRaw. Despite
the warnings, things still seem to work fine.

Also, in the console output, I'm not seeing these warnings, but I do
see:
Warning: Size 4960 of Exif.Canon.0x4002 exceeds 4096 bytes limit. Not
decoded.
Warning: Size 4960 of Exif.Canon.0x4002 exceeds 4096 bytes limit. Not
decoded.
Warning: Size 4960 of Exif.Canon.0x4002 exceeds 4096 bytes limit. Not
decoded.
Warning: Size 4960 of Exif.Canon.0x4002 exceeds 4096 bytes limit. Not
decoded.
Warning: Size 4960 of Exif.Canon.0x4002 exceeds 4096 bytes limit. Not
decoded.

Brent