There must be at least 1 active type. On the other hand, the volume of processed information is very high and the hardware speed must be very high, too. The compression method has to be efficient and simultaneously satisfy the criteria of video sequence quality, sufficient compression ratio and capability of hardware realization. Lossless compression deals with compression schemes in which there is no degradation in the image quality.
Lossless compression allows the exact reconstruction of the original image from the compressed data.
Perceptually lossless image compression deals with lossy compression schemes in which the degradation in image quality is not visible to human observers. We intend to consider new techniques in order to achieve our objectives. The proposed algorithms will be evaluated by means of analytical and experimental methods. Analytical work will be aimed towards establishing the existence of valid solutions. Experimental methods will be based on a computer simulation of compression and investigation of the image quality after compression-decompression operations.