// Enhances the intensity differences between the lighter and darker elements of the image. Set sharpen to a value other than 0 to increase the image contrast otherwise the contrast is reduced. func (self *Canvas) Contrast(sharpen bool) error { status := C.MagickContrastImage(self.wand, magickBoolean(sharpen)) if status == C.MagickFalse { return fmt.Errorf("Could not contrast image: %s", self.Error()) } return nil }
// enhances the intensity differences between the lighter and darker elements of the image. Set sharpen to a value other than 0 to increase the image contrast otherwise the contrast is reduced. func (self Canvas) Contrast(sharpen bool) error { var incr C.MagickBooleanType incr = C.MagickFalse if sharpen { incr = C.MagickTrue } success := C.MagickContrastImage(self.wand, incr) if success == C.MagickFalse { return fmt.Errorf("Could not contrast image: %s", self.Error()) } return nil }