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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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22
vips.go
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@ -830,3 +830,25 @@ func vipsGamma(image *C.VipsImage, Gamma float64) (*C.VipsImage, error) {
}
return out, nil
}
func vipsBrightness(image *C.VipsImage, brightness float64) (*C.VipsImage, error) {
var out *C.VipsImage
defer C.g_object_unref(C.gpointer(image))
err := C.vips_brightness_bridge(image, &out, C.double(brightness))
if err != 0 {
return nil, catchVipsError()
}
return out, nil
}
func vipsContrast(image *C.VipsImage, contrast float64) (*C.VipsImage, error) {
var out *C.VipsImage
defer C.g_object_unref(C.gpointer(image))
err := C.vips_contrast_bridge(image, &out, C.double(contrast))
if err != 0 {
return nil, catchVipsError()
}
return out, nil
}