Store pixels in sub image wise in 2d array

[rohitkrishna]

Hi Everyone,

Can any one please explain me how can i store the r,g,b values of a image..by sub-image wise in a 2d array using image magick...?

Lets say an image is of 15x15..i have to store the r,g,b values in 2d array by 5x5 sub-images...wise.

[fmw42]

I think this needs a bit more clarification. Are you trying to take every 15x15 pixel region from the image and make a new 15x15 pixel image for each region? Is there overlap of the regions in the input image? Do I totally misunderstand what you want?


Take a look at the -crop operator at:
http://www.imagemagick.org/Usage/crop/#crop
and especially at
http://www.imagemagick.org/Usage/crop/#crop_tile

[anthony]

OR are you just wanting to read the data.. If so what language? What data format?

You are not detailed enough for us to help.

PS: one simple universal way is to just get Im to output a TXT: file (enumerated pixel format)
See http://www.imagemagick.org/Usage/files/#txt

Also see the section.. Extracting Image Colors.
http://www.imagemagick.org/Usage/quantize/#extract

These are however specific to command line, for other API's other techniques are available.