The invention provides a method for processing input image data by an image processing device, to reach a desired visual effect within an output image, wherein input image data are stored within an input memory device and the input image data are transferred based on data of a lookup table into respective output image data stored within an output memory device, the lookup table being generated based on at least one data remapping function to reach the desired visual effect, wherein further the entries within the lookup table are arranged in such a way that when processing the lookup table the input memory device is addressed in a sequential reading order; a computer readable medium having stored thereon program code to carry out the inventive method as well as an image processing device to carry out the method.