average.c File Reference

pixelwise (weighted) average of two images More...

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Detailed Description

pixelwise (weighted) average of two images

Usage: average in1.pgm in2.pgm [alpha] out.pgm

Description: The default value for the optional parameter alpha is 0.5 . For each pixel x, out[x] = alpha * in1[x] + (1 - alpha) * in2[x]. If both images are byte images, and if out[x] exceeds 255, then out[x] is set to 255. Images must be of the same dimensions.

Types supported: byte 2d, byte 3d, int32_t 2d, int32_t 3d, float 2d, float 3d

Category: arith

Author:

Michel Couprie