16 lines
595 B
Text
16 lines
595 B
Text
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MakeDiff
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========
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.. function:: MakeDiff(vnode clipa, vnode clipb[, int[] planes])
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:module: std
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Calculates the difference between *clipa* and *clipb* and clamps the result.
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By default all *planes* are processed. This function is usually used together with *MergeDiff*, which can be used to add back the difference.
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Unsharp masking of luma::
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blur_clip = core.std.Convolution(clip, matrix=[1, 2, 1, 2, 4, 2, 1, 2, 1], planes=[0])
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diff_clip = core.std.MakeDiff(clip, blur_clip, planes=[0])
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sharpened_clip = core.std.MergeDiff(clip, diff_clip, planes=[0])
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