1IM_SUBSAMPLE(3) Library Functions Manual IM_SUBSAMPLE(3)
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6 im_subsample - subsample image by integer factor
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9 #include <vips/vips.h>
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11 int im_subsample(in, out, xsub, ysub)
12 IMAGE *in, *out;
13 int xsub, ysub;
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17 im_subsample() sub-samples image in by an x and y integer factor. It is
18 much faster than im_shrink(), especially for large partial images.
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20 It works for any image type.
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23 The function returns 0 on success and -1 on error.
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26 im_shrink(3), im_similarity(3), im_zoom(3)
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29 1989-1996 The National Gallery and Birkbeck College
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33 19 Aug 1996 IM_SUBSAMPLE(3)