VapourSynth 1.0 documentation
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# PlaneAverage

`std.``PlaneAverage`(clip clip, int plane[, string prop = 'PlaneAverage'])

  This function calculates the average normalized value of all the pixels in the specified plane and stores the value in the frame property named prop. The normalization means that the output will always be a float between 0 and 1 no matter what the input format is.