Abstract—To improve the visual images which are degraded by blocking artifacts from compression. It is efficient method to use deblocking algorithms instead of using perceptually questionable PSNR. We proposed a block-sensitive index method named as PSNR-B, it produces objective judgements that accord with observations. The PSNR-B modifies PSNR by including a blocking effect factor. We also use the perceptually significant SSIM index, which produces results largely in agreement with PSNR-B. Simulation results show that the PSNR-B results in better performance for quality assessment of deblocked images than PSNR and a well-known blockiness-specific index.

Index Terms—Image quality assessment, Quantization, Deblocking, Distortion, Blocking effect, PSNR, Blocking artifacts, Structural similarity, Deblocking filter, Distortion change

Cite: B Sreenivasa Reddy and S Swarna Latha, "COMPARISON OF QUALITY INDICES OF DEBLOCKED IMAGES," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 3, No. 1, pp. 104-115, January 2014.