Man page - pkcreatect(1)

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Manual

pkcreatect

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE

NAME

pkcreatect - program to create and import colour table to GTiff image

SYNOPSIS

pkcreatect -i input -o output [ -ct colortable | -min value -max value ] [ options ] [ advanced options ]

DESCRIPTION

pkcreatect is a utility to include a color table to a raster dataset. You can either define an existing color table (ASCII text file) with the option -ct or define a minimum ( -min ) and maximum ( -max ) value.

OPTIONS

-i filename , --input filename

input image

-o filename , --output filename

output classification image

-ct filename , --ct filename

colour table in ASCII format having 5 columns: id R G B ALFA (0: transparent, 255: solid)

-min number , --min number

minimum value

-max number , --max number

maximum value

options
-g
, --grey

grey scale

-of format , --oformat format

Output image format (see also gdal_translate (1)).

-co option , --co option

Creation option for output file. Multiple options can be specified.

-d description , --description description

Set image description

-v , --verbose

verbose

Advanced options
-l
filename , --filename filename

Create legend as png file

-dim cols -dim rows , --dim cols --dim rows

number of columns and rows in legend.

EXAMPLE

Attach a color table to image with values between 0 and 50

pkcreatect -i image.tif -o image_ct.tif -min 0 -max 50

Attach a grey scale "color" table to image with values between 0 and 100 and create a legend image (annotation needs to be drawn manually)

pkcreatect -i image.tif -o image_ct.tif -min 0 -max 100 -l legend.tif -g

Attach a predefined color table to image.tif . The colortable has 5 entries for the values 0 (black), 1 (red), 2 (green), 3 (blue) and 4 (grey)

cat colortable.txt

0 0 0 0 255
1 255 0 0 255
2 0 255 0 255
3 0 0 255 255
4 100 100 100 255

pkcreatect -i image.tif -o image_ct.tif -ct colortable.txt

Remove the color table from an image

pkcreatect -i image.tif -o image_noct.tif -ct none