I'm currently working on comparing a filtered image to its original (unfiltered) image using the SSIM (Structural similarity) index using Java.
My research brought me to a mathematical formula where the average, variance, covariance and the dynamic range of the two
BufferedImages are needed.
Getting to calculate the average and the variance was not a big problem for me, however I can't figure out a way to get the number of bits per pixel needed to calculate the dynamic range, and the covariance value, is this something I can obtain from the
BufferedImage has a
getColorModel() method, and in the returned
ColorModel object there is a
getPixelSize() method which returns the number of bits per pixel described by that
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