29 lines
740 B
Groff
29 lines
740 B
Groff
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.TH IM_STRETCH3 3 "Sep 18 1997"
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.SH NAME
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im_stretch3 \- stretch horizontally by 3%, displace sub-pixel
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mask
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.SH SYNOPSIS
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#include <vips/vips.h>
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int im_stretch3( in, out, xdisp, ydisp )
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.br
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IMAGE *in, *out;
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.br
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double xdisp, ydisp;
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.SH DESCRIPTION
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im_stretch3() stretches the input image by 3% horizontally, and displaces it
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by xdisp/ydisp. It uses bi-cubic interpolation, but runs quickly. It works
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only for unsigned short images.
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This function is part of the MARC acquisition software, but is generally
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useful for squaring up the pixels in images from the Kontron ProgRes camera
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range.
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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_conv(3), im_shrink(3).
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.SH COPYRIGHT
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The National Gallery, 1997
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