Analysis of various direction lifting schemesfor JPEG2000 standard

This paper presents different types of lifting schemes for the compression of images, which basically includes the simple lifting scheme which serves as a basis for direction lifting schemes namely Edge Orientation Estimator Lifting Scheme, Adaptive Direction Lifting Scheme(ADL), Weighted Adaptive Direction Lifting Scheme (WAL) and Quincunx Directional Lifting Scheme. Paper also gives a strict comparison between these types of direction lifting schemes and their techniques. Peak signal to noise ratio (PSNR) of the images is the main factor taken into consideration for determining the quality of the reconstructed image. Experimental results show that the WAL produces the best results as compared to other lifting schemes in terms of PSNR and visual quality whereas ADL produces comparatively good results over Quincunx and Edge Orientation Estimator Lifting Scheme while Edge Orientation Estimator Lifting Scheme produces the results with least PSNR.