isnull.c File Reference

nullity test More...

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Detailed Description

nullity test

Usage: isnull in.pgm

Description: This function returns 1 (no error) if for each pixel x, in[x] == 0; otherwise it returns 0. 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