This is the command pkdumpimg that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
pkdumpimg - program to dump image content to ASCII or STDOUT
SYNOPSIS
pkdumpimg -i input [-o output] [options] [advanced options]
DESCRIPTION
pkdumpimg dumps the content of a raster dataset to (standard) output (screen or filename).
The default is to dump the output in matrix format. Use -of line to dump each pixel value
on a separate line, preceded by its position (x and y value). You can specify a bounding
box to dump with either the extent of an OGR vector dataset or via the options -ulx -uly
-lrx and -lry.
OPTIONS
-i filename, --input filename
input image file
-o filename, --output filename
Output ASCII file (Default is empty: use STDOUT)
-of matrix|line, --oformat matrix|line
Output format (matrix form or list (x,y,z) form). Default is matrix form
-b band, --band band
band index to crop
-e vector, --extent vector
get boundary from extent from polygons in vector file
-ulx value, --ulx value
Upper left x value bounding box (in geocoordinates if georef is true)
-uly value, --uly value
Upper left y value bounding box (in geocoordinates if georef is true)
-lrx value, --lrx value
Lower left x value bounding box (in geocoordinates if georef is true)
-lry value, --lry value
Lower left y value bounding box (in geocoordinates if georef is true)
-v level, --verbose level
verbose (Default: 0)
Advanced options
-dx value, --dx value
Output resolution in x (in meter) (0.0: keep original resolution)
-dy value, --dy value
Output resolution in y (in meter) (0.0: keep original resolution)
-r resampling, --resampling-method resampling
Resampling method (near: nearest neighbour, bilinear: bi-linear interpolation).
-srcnodata value, --srcnodata value
set no data value(s) for input image
-dstnodata value, --dstnodata value
nodata value for output if out of bounds.
EXAMPLE
We create a 5x5 raster dataset containing all 0 values except for its center (value=1)
cat input.txt
0 0 0 0 0
0 0 0 0 0
0 0 1 0 0
0 0 0 0 0
0 0 0 0 0
Use pkascii2img(1) to create an raster dataset from input.txt
pkascii2img -i input.txt -o output.tif -of GTiff -a_srs epsg:3035 -dx 25 -dy 25 -ulx 1000000 -uly 1000000
Dump the image content of output.tif to screen
pkdumpimg -i output.tif
Use pkdumpimg online using onworks.net services
