magickNegateImage method
MagickNegateImage() negates the colors in the reference image. The Grayscale option means that only grayscale values within the image are negated.
You can also reduce the influence of a particular channel with a gamma value of 0.
This method runs inside an isolate different from the main isolate.
gray
: If true, only negate grayscale pixels within the image.
Implementation
Future<bool> magickNegateImage(bool gray) async => await _magickCompute(
_magickNegateImage,
_MagickNegateImageParams(
_wandPtr.address,
gray,
),
);