getIndexImage method

Image getIndexImage(
  1. Image image
)

Convert the image to a palette image.

Implementation

Image getIndexImage(Image image) {
  final target = Image(
      width: image.width,
      height: image.height,
      numChannels: 1,
      palette: palette);

  final ti = target.iterator..moveNext();
  target
    ..frameIndex = image.frameIndex
    ..frameType = image.frameType
    ..frameDuration = image.frameDuration;

  for (final p in image) {
    final t = ti.current;
    t[0] = getColorIndex(p);
    ti.moveNext();
  }

  return target;
}