Hello, I have big 3000x7000 pixel images from satellite swath scans.. I am automatedly processing such dataset and mostly using IM and some cartographic libraries... At every processing step I would like to check whether the actual step has been executed correctly and the output images are "correct".. Of course, also this step needs to be automated.. One of the checks that I surely need is to determine whether the output image is a plain white image or a plain black images.. I would like to know if there is a simple way of doing this check and quickly!!! Basically checking if all pixel values are above, say the 250 value threshold, or below the 0 value threshold... Also these checks are automated as I said and will be executed for every satellite image that my "processor" will get as input.. so its important to keep this check (amongst others) as efficient as possible. I tried Fred Weinhaus's scripts (in particular colorspectrum and histog ) but they somehow seem to take up too much time... maybe there is a way to use them in a more optimized manner ??
Any suggestions would be of great help.. Best Mattia -- Mattia _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
