magickLevelImage method

Future<bool> magickLevelImage({
  1. required double blackPoint,
  2. required double gamma,
  3. required double whitePoint,
})

MagickLevelImage() adjusts the levels of an image by scaling the colors falling between specified white and black points to the full available quantum range. The parameters provided represent the black, mid, and white points. The black point specifies the darkest color in the image. Colors darker than the black point are set to zero. Mid point specifies a gamma correction to apply to the image. White point specifies the lightest color in the image. Colors brighter than the white point are set to the maximum quantum value.

This method runs inside an isolate different from the main isolate.

  • blackPoint: the black point.
  • gamma: the gamma.
  • whitePoint: the white point.

Implementation

Future<bool> magickLevelImage({
  required double blackPoint,
  required double gamma,
  required double whitePoint,
}) async =>
    await _magickCompute(
      _magickLevelImage,
      _MagickLevelImageParams(
        _wandPtr.address,
        blackPoint,
        gamma,
        whitePoint,
      ),
    );