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Support brightness and contrast

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This commit is contained in:
Mereng 2021-06-17 18:57:39 +02:00
parent d0fb333ce4
commit 76894654c7
4 changed files with 68 additions and 0 deletions
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10
vips.h
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@ -656,3 +656,13 @@ int vips_gamma_bridge(VipsImage *in, VipsImage **out, double exponent)
{
return vips_gamma(in, out, "exponent", 1.0 / exponent, NULL);
}
int vips_brightness_bridge(VipsImage *in, VipsImage **out, double k)
{
return vips_linear1(in, out, 1.0 , k, NULL);
}
int vips_contrast_bridge(VipsImage *in, VipsImage **out, double k)
{
return vips_linear1(in, out, k , 0.0, NULL);
}