25 lines
587 B
Groff
25 lines
587 B
Groff
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.TH IM_SUBSAMPLE 3 "19 Aug 1996"
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.SH NAME
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im_subsample \- subsample image by integer factor
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.SH SYNOPSIS
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#include <vips/vips.h>
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int im_subsample(in, out, xsub, ysub)
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.br
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IMAGE *in, *out;
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.br
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int xsub, ysub;
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.SH DESCRIPTION
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.B im_subsample()
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sub-samples image in by an x and y integer factor. It is much faster than
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im_shrink(), especially for large partial images.
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It works for any image type.
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.SH RETURN VALUE
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The function returns 0 on success and -1 on error.
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.SH SEE ALSO
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im_shrink(3), im_similarity(3), im_zoom(3)
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.SH COPYRIGHT
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1989-1996 The National Gallery and Birkbeck College
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