Module imageproc::stats

Statistical properties of images.

Functions

peak_signal_to_noise_ratio	Returns the peak signal to noise ratio for a clean image and its noisy aproximation. All channels are considered equally. If you do not want this (e.g. if using RGBA) then change image formats first. See also peak signal-to-noise ratio (wikipedia).
root_mean_squared_error	Returns the square root of the mean of the squares of differences between all subpixels in left and right. All channels are considered equally. If you do not want this (e.g. if using RGBA) then change image formats first.