1DIVISION(3) Library Functions Manual DIVISION(3)
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6 im_divide - divide two images
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9 #include <vips/vips.h>
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11 int im_divide(in1, in2, out)
12 IMAGE *in1, *in2, *out;
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16 im_divide(3) divides two images. The result is float except if one (or
17 both) input is double. In the latter case the result is double. If
18 either input is complex, the result is complex. If either input is dou‐
19 ble complex, the output is double complex.
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21 Input images in1 and in2 should have the same channels and the same
22 sizes, however they can be of different types. Only the history of the
23 image descriptor pointed by in1 is copied to out.
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25 For complex input pels (x1,y1) and (x2,y2), im_divide(3) writes
26 ((x1*x2 + y1*y2)/(x2*x2 + y2*y2), (y1*x2 - x1*y2)/(x2*x2 + y2*y2)).
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30 The function does not check the result for over/underflow.
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33 The function returns 0 on success and -1 on error.
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36 im_remainder(3), im_multiply(3), im_subtract(3), im_lintra(3),
37 im_add(3).
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40 National Gallery, 1995
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44 24 April 1991 DIVISION(3)