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im_ceil - for each pixel, find the smallest integral value not less
than
#include <vips/vips.h>
int im_ceil( in, out )
IMAGE *in, *out;
im_ceil(3)
finds the smallest integral value
not less than. Copy for integer types, call ceil(3)
for float and complex
types. Output type == input type.
The function returns 0 on success
and -1 on error.
im_abs(3)
, im_clip2fmt(3)
, im_floor(3)
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