A path to a image file.
The width of an image file.
The height of an image file.
the ColorSpace. deviceGrey, deviceRGB or deviceCMYK are allowed.
When loadRawImageFromFile() succeeds, it returns an instance of a Image object. Otherwise, it returns null and error-handler is called.
Loads an image which has "raw" image format.
This function loads the data without any conversion. So it is usually faster than the other functions.