Quote:
Originally Posted by ajp_anton
Using "averageluma", 128 is converted to 0.501961 (128/255).
Using "yplanemax"/"-min", 128 is converted to 32896 (is this a bug? should be a float number, not a 16bit int)
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Yes, it was fixed recently, perhaps after v2397. MinMax-like conditional functions (Min, Max, MinMaxDifference and Median) were done at the very beginning and could not decide that the return value should be the old integer or can be float (always the compatibility in mind). Then recently it was changed to float.
Conditional runtime functions have 10-16 bit/float support for YUV, PlanarRGB and 16 bit packed RGB formats.
Since RGB is also available as a planar colorspace, the plane statistics functions logically were expanded.
New functions
• AverageR, AverageG AverageB like AverageLuma
• RDifference, GDifference, BDifference like LumaDifference(clip1, clip2)
• RDifferenceFromPrevious, GDifferenceFromPrevious, BDifferenceFromPrevious
• RDifferenceToNext, GDifferenceToNext, BDifferenceToNext
• RPlaneMin, GPlaneMin BPlaneMin like YPlaneMin(clip [, float threshold = 0, int offset = 0])
• RPlaneMax, GPlaneMax BPlaneMax like YPlaneMax(clip [, float threshold = 0, int offset = 0])
• RPlaneMinMaxDifference, GPlaneMinMaxDifference BPlaneMinMaxDifference like YPlaneMinMaxDifference(clip [, float threshold = 0, int offset = 0])
• RPlaneMedian, GPlaneMedian, BPlaneMedian like YPlaneMedian(clip [, int offset = 0])
For float colorspaces the Min, Max, MinMaxDifference and Median functions populate pixel counts for the internal statistics at a 16 bit resolution internally.