read pixel value

[waggs]

Is it possible to read the pixel value at any particular x,y pixel coordinate using IM?
If so, how?

cheers
waggs

ImageMagick 6.8.6-6 2013-08-08 Q16
iMac

[snibgo]

For example, to read the pixel from the in-built rose image at coordinate (40,50):

Code: Select all

convert rose: -format "%[pixel:p{40,50}]" info:

The result is: srgb(80,78,52)

[fmw42]

see http://www.imagemagick.org/Usage/transform/#fx_escapes for more examples and discussion

[waggs]

Thanks both - does what I want.

[anthony]

If you are wanting a lot of pixels and not just one, then outputing the image as a "txt:" file will be better.