1IM_GREY(3)                 Library Functions Manual                 IM_GREY(3)
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NAME

6       im_grey, im_fgrey, im_make_xy - creates a grey scale
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SYNOPSIS

9       #include <vips/vips.h>
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11       int im_grey( image, xsize, ysize )
12       IMAGE *image;
13       int xsize, ysize;
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15       int im_fgrey( image, xsize, ysize )
16       IMAGE *image;
17       int xsize, ysize;
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19       int im_make_xy( image, xsize, ysize )
20       IMAGE *image;
21       int xsize, ysize;
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DESCRIPTION

25       im_grey(3)  creates a one-band FMTUCHAR grey scale image of sizes xsize
26       by ysize.  The intensity varies from 0 (left) to 255 (right).
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28       im_fgrey(3) works as im_grey(3), except that the output image  is  FMT‐
29       FLOAT, allowing pixel values from 0 (left) to 1.0 (right).
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31       im_make_xy(3) makes a two-band FMTUINT image where each pixel in band 0
32       has a value equal to the x coordinate, and each pixel in band 1  has  a
33       value equal to the y coordinate.
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RETURN VALUE

37       The function returns 0 on success and -1 on error.
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SEE ALSO

40       im_black(3)
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43       Birkbeck College and the National Gallery, 1995
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47                                  10 May 1991                       IM_GREY(3)
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