decode method
Implementation
bool decode() {
if (!isValid || _input == null) {
return false;
}
// Color Mode Data Block:
// Indexed and duotone images have palette data in colorData...
_readColorModeData();
// Image Resource Block:
// Image resources are used to store non-pixel data associated with images,
// such as pen tool paths.
_readImageResources();
_readLayerAndMaskData();
_readMergeImageData();
_input = null;
//_colorData = null;
_imageResourceData = null;
_layerAndMaskData = null;
_imageData = null;
return true;
}