use lascolor in batch

[S.Kasmin]

Hi,

I'm trying to give RGB values to many AHN tiles (dutch lidar data) at once with lascolor with orthographic aerial imagery (the laz files and ortho tiffs are all in the same folder).

I've read the lascolor readme and it says that I have to use the '-imagedir' syntax to use in a batch but it doesn't work for me unfortunately.

The error keeps saying: "ERROR: cannot understand argument". Can anyone tell me what I'm doing wrong? Many thanks in advance.

Kind regards,

Kasmin

[Sam Hackett]

Hi Kasmin,

Perhaps if you can share your script it is possibly an easy fix.



Sam

[S.Kasmin]

Hi Sam,

Thanks for your reply. I'm using this command:

lascolor -lof file_list.7196.txt -imagedir "C:\lidar\orthophotos" -odir "C:\lidar\rgb" -olaz

The list of files include all the necessary lidar data and all the ortho tiffs are located in the orthophotos folder.

The strange thing is that the readme document of the lascolor tool does say: 'use -imagedir syntax to give rgb values to lidar data in batch'.

I'm not sure what I'm doing wrong here. Many thanks in advance.

Kasmin

[Martin Isenburg]

Hello,

maybe you use an old version of lascolor? It works well. Here is an example:

lascolor -version

LAStools (by mar...@rapidlasso.com) version 181001 (commercial)

:: creating 3 fake ortho images in the orthos folder

mkdir orthos

las2dem -i ..\data\fusa.laz -slope -false -o orthos\fusa1.tif

las2dem -i ..\data\fusa.laz -elevation -false -o orthos\fusa2.tif

las2dem -i ..\data\fusa.laz -intensity -false -set_min_max 0 255 -o orthos\fusa3.tif

:: creating 3 LAZ files with the same name in the lidars folder

mkdir lidars

copy ..\data\fusa.laz lidars\fusa1.laz

copy ..\data\fusa.laz lidars\fusa2.laz

copy ..\data\fusa.laz lidars\fusa3.laz

:: running lascolor in batch

mkdir results

lascolor -i lidars\*.laz -imagedir orthos -odir results -olaz

TIFFReadDirectory: Warning, orthos\fusa1.tif: unknown field with tag 42113 (0xa481) encountered.

done with 'results\fusa1.laz'. colored 277573 points. total time 1.017 sec.

TIFFReadDirectory: Warning, orthos\fusa2.tif: unknown field with tag 42113 (0xa481) encountered.

done with 'results\fusa2.laz'. colored 277573 points. total time 0.988 sec.

TIFFReadDirectory: Warning, orthos\fusa3.tif: unknown field with tag 42113 (0xa481) encountered.

done with 'results\fusa3.laz'. colored 277573 points. total time 0.952 sec.

done with all files. total time for 3 files 2.957 sec.

dir results

10/31/2018  07:27 AM         1,331,175 fusa1.laz

10/31/2018  07:27 AM         1,257,756 fusa2.laz

10/31/2018  07:27 AM         1,303,244 fusa3.laz

               3 Datei(en),      3,892,175 Bytes

lasview -i results\fusa1.laz

lasview -i results\fusa2.laz

lasview -i results\fusa3.laz

Cheers,

Martin @rapidlasso

====================================

^C

C:\software\LAStools\bin>lascolor -version

LAStools (by mar...@rapidlasso.com) version 181001 (commercial)

C:\software\LAStools\bin>lascolor -h

Filter points based on their coordinates.

  -keep_tile 631000 4834000 1000 (ll_x ll_y size)

  -keep_circle 630250.00 4834750.00 100 (x y radius)

  -keep_xy 630000 4834000 631000 4836000 (min_x min_y max_x max_y)

  -drop_xy 630000 4834000 631000 4836000 (min_x min_y max_x max_y)

  -keep_x 631500.50 631501.00 (min_x max_x)

  -drop_x 631500.50 631501.00 (min_x max_x)

  -drop_x_below 630000.50 (min_x)

  -drop_x_above 630500.50 (max_x)

  -keep_y 4834500.25 4834550.25 (min_y max_y)

  -drop_y 4834500.25 4834550.25 (min_y max_y)

  -drop_y_below 4834500.25 (min_y)

  -drop_y_above 4836000.75 (max_y)

  -keep_z 11.125 130.725 (min_z max_z)

  -drop_z 11.125 130.725 (min_z max_z)

  -drop_z_below 11.125 (min_z)

  -drop_z_above 130.725 (max_z)

  -keep_xyz 620000 4830000 100 621000 4831000 200 (min_x min_y min_z max_x max_y max_z)

  -drop_xyz 620000 4830000 100 621000 4831000 200 (min_x min_y min_z max_x max_y max_z)

Filter points based on their return numbering.

  -keep_first -first_only -drop_first

  -keep_last -last_only -drop_last

  -keep_second_last -drop_second_last

  -keep_first_of_many -keep_last_of_many

  -drop_first_of_many -drop_last_of_many

  -keep_middle -drop_middle

  -keep_return 1 2 3

  -drop_return 3 4

  -keep_single -drop_single

  -keep_double -drop_double

  -keep_triple -drop_triple

  -keep_quadruple -drop_quadruple

  -keep_number_of_returns 5

  -drop_number_of_returns 0

Filter points based on the scanline flags.

  -drop_scan_direction 0

  -keep_scan_direction_change

  -keep_edge_of_flight_line

Filter points based on their intensity.

  -keep_intensity 20 380

  -drop_intensity_below 20

  -drop_intensity_above 380

  -drop_intensity_between 4000 5000

Filter points based on classifications or flags.

  -keep_class 1 3 7

  -drop_class 4 2

  -keep_extended_class 43

  -drop_extended_class 129 135

  -drop_synthetic -keep_synthetic

  -drop_keypoint -keep_keypoint

  -drop_withheld -keep_withheld

  -drop_overlap -keep_overlap

Filter points based on their user data.

  -keep_user_data 1

  -drop_user_data 255

  -keep_user_data_below 50

  -keep_user_data_above 150

  -keep_user_data_between 10 20

  -drop_user_data_below 1

  -drop_user_data_above 100

  -drop_user_data_between 10 40

Filter points based on their point source ID.

  -keep_point_source 3

  -keep_point_source_between 2 6

  -drop_point_source 27

  -drop_point_source_below 6

  -drop_point_source_above 15

  -drop_point_source_between 17 21

Filter points based on their scan angle.

  -keep_scan_angle -15 15

  -drop_abs_scan_angle_above 15

  -drop_abs_scan_angle_below 1

  -drop_scan_angle_below -15

  -drop_scan_angle_above 15

  -drop_scan_angle_between -25 -23

Filter points based on their gps time.

  -keep_gps_time 11.125 130.725

  -drop_gps_time_below 11.125

  -drop_gps_time_above 130.725

  -drop_gps_time_between 22.0 48.0

Filter points based on their RGB/CIR/NIR channels.

  -keep_RGB_red 1 1

  -drop_RGB_red 5000 20000

  -keep_RGB_green 30 100

  -drop_RGB_green 2000 10000

  -keep_RGB_blue 0 0

  -keep_RGB_nir 64 127

  -keep_NDVI 0.2 0.7 -keep_NDVI_from_CIR -0.1 0.5

  -keep_NDVI_intensity_is_NIR 0.4 0.8 -keep_NDVI_green_is_NIR -0.2 0.2

Filter points based on their wavepacket.

  -keep_wavepacket 0

  -drop_wavepacket 3

Filter points based on extra attributes.

  -keep_attribute_above 0 5.0

  -drop_attribute_below 1 1.5

Filter points with simple thinning.

  -keep_every_nth 2 -drop_every_nth 3

  -keep_random_fraction 0.1

  -keep_random_fraction 0.1 4711

  -thin_with_grid 1.0

  -thin_pulses_with_time 0.0001

  -thin_points_with_time 0.000001

Boolean combination of filters.

  -filter_and

Transform coordinates.

  -translate_x -2.5

  -scale_z 0.3048

  -rotate_xy 15.0 620000 4100000 (angle + origin)

  -translate_xyz 0.5 0.5 0

  -translate_then_scale_y -0.5 1.001

  -transform_helmert -199.87,74.79,246.62

  -transform_helmert 598.1,73.7,418.2,0.202,0.045,-2.455,6.7

  -switch_x_y -switch_x_z -switch_y_z

  -clamp_z_below 70.5

  -clamp_z 70.5 72.5

  -copy_attribute_into_z 0

  -copy_intensity_into_z

Transform raw xyz integers.

  -translate_raw_z 20

  -translate_raw_xyz 1 1 0

  -translate_raw_xy_at_random 2 2

  -clamp_raw_z 500 800

Transform intensity.

  -set_intensity 0

  -scale_intensity 2.5

  -translate_intensity 50

  -translate_then_scale_intensity 0.5 3.1

  -clamp_intensity 0 255

  -clamp_intensity_above 255

  -copy_RGB_into_intensity

  -copy_NIR_into_intensity

  -copy_attribute_into_intensity 0

  -bin_gps_time_into_intensity 0.5

Transform scan_angle.

  -scale_scan_angle 1.944445

  -translate_scan_angle -5

  -translate_then_scale_scan_angle -0.5 2.1

Change the return number or return count of points.

  -repair_zero_returns

  -set_return_number 1

  -set_extended_return_number 10

  -change_return_number_from_to 2 1

  -set_number_of_returns 2

  -set_number_of_returns 15

  -change_number_of_returns_from_to 0 2

Modify the classification.

  -set_classification 2

  -set_extended_classification 41

  -change_classification_from_to 2 4

  -classify_z_below_as -5.0 7

  -classify_z_above_as 70.0 7

  -classify_z_between_as 2.0 5.0 4

  -classify_intensity_above_as 200 9

  -classify_intensity_below_as 30 11

  -classify_intensity_between_as 500 900 15

  -classify_attribute_below_as 0 -5.0 7

  -classify_attribute_above_as 1 70.0 7

  -classify_attribute_between_as 1 2.0 5.0 4

  -change_extended_classification_from_to 6 46

  -move_ancient_to_extended_classification

Change the flags.

  -set_withheld_flag 0

  -set_synthetic_flag 1

  -set_keypoint_flag 0

  -set_overlap_flag 1

Modify the extended scanner channel.

  -set_scanner_channel 2

  -copy_user_data_into_scanner_channel

Modify the user data.

  -set_user_data 0

  -scale_user_data 1.5

  -change_user_data_from_to 23 26

  -change_user_data_from_to 23 26

  -copy_attribute_into_user_data 1

Modify the point source ID.

  -set_point_source 500

  -change_point_source_from_to 1023 1024

  -copy_user_data_into_point_source

  -copy_scanner_channel_into_point_source

  -merge_scanner_channel_into_point_source

  -split_scanner_channel_from_point_source

  -bin_Z_into_point_source 200

  -bin_abs_scan_angle_into_point_source 2

Transform gps_time.

  -set_gps_time 113556962.005715

  -translate_gps_time 40.50

  -adjusted_to_week

  -week_to_adjusted 1671

Transform RGB/NIR colors.

  -set_RGB 255 0 127

  -set_RGB_of_class 9 0 0 255

  -scale_RGB 2 4 2

  -scale_RGB_down (by 256)

  -scale_RGB_up (by 256)

  -switch_R_G -switch_R_B -switch_B_G

  -copy_R_into_NIR -copy_R_into_intensity

  -copy_G_into_NIR -copy_G_into_intensity

  -copy_B_into_NIR -copy_B_into_intensity

  -copy_intensity_into_NIR

Supported LAS Inputs

  -i lidar.las

  -i lidar.laz

  -i lidar1.las lidar2.las lidar3.las -merged

  -i *.las - merged

  -i flight0??.laz flight1??.laz

  -i terrasolid.bin

  -i esri.shp

  -i nasa.qi

  -i lidar.txt -iparse xyzti -iskip 2 (on-the-fly from ASCII)

  -i lidar.txt -iparse xyzi -itranslate_intensity 1024

  -lof file_list.txt

  -stdin (pipe from stdin)

  -rescale 0.01 0.01 0.001

  -rescale_xy 0.01 0.01

  -rescale_z 0.01

  -reoffset 600000 4000000 0

Fast AOI Queries for LAS/LAZ with spatial indexing LAX files

  -inside min_x min_y max_x max_y

  -inside_tile ll_x ll_y size

  -inside_circle center_x center_y radius

Supported LAS Outputs

  -o lidar.las

  -o lidar.laz

  -o xyzta.txt -oparse xyzta (on-the-fly to ASCII)

  -o terrasolid.bin

  -o nasa.qi

  -odir C:\data\ground (specify output directory)

  -odix _classified (specify file name appendix)

  -ocut 2 (cut the last two characters from name)

  -olas -olaz -otxt -obin -oqfit (specify format)

  -stdout (pipe to stdout)

  -nil    (pipe to NULL)

LAStools (by mar...@rapidlasso.com) version 181001 (commercial)

usage:

lascolor -i in.las -image ortho.tif -o out.laz

lascolor -i in.laz -image ortho.tif -dont_scale_rgb_up -odix _rgb -olaz

lascolor -i in_rgb.laz -image ortho.tif -zero_rgb -odix _new -olaz

lascolor -i lidar\*.laz -imagedir ortho -odir colored_lidar -olaz -cores 4

lascolor -i lidar\*.laz -odir colored_lidar -olaz -cores 4

lascolor -h

--
Download LAStools at
http://lastools.org
http://rapidlasso.com
Be social with LAStools at
http://facebook.com/LAStools
http://twitter.com/LAStools
http://linkedin.com/groups/LAStools-4408378
Manage your settings at
http://groups.google.com/group/lastools/subscribe