Title :
Image quality evaluation
Author_Institution :
Dept. of Radioelectronics, Czech Tech. Univ., Prague, Czech Republic
Abstract :
This paper is devoted to subjective and objective tests of image quality. The images were processed using different compressing algorithms (JPEG, KLT, Lura-wavelet) with compression ratio up to 100. After decompression they were tested on the quality changes. At first the subjective image quality test (DSCQS) was used. Then the objective quality test using the metric based on the human visual system was applied. Finally, a discussion of the results is presented.
Keywords :
Karhunen-Loeve transforms; data compression; image coding; wavelet transforms; DSCQS; JPEG; KLT; Lura wavelet; compression ratio; decompression; human visual system; image compression; image quality evaluation; objective tests; subjective tests; Bit rate; Humans; Image coding; Image quality; Karhunen-Loeve transforms; PSNR; Testing; Transform coding; Video compression; Visual system;
Conference_Titel :
Video/Image Processing and Multimedia Communications 4th EURASIP-IEEE Region 8 International Symposium on VIPromCom
Print_ISBN :
953-7044-01-7
DOI :
10.1109/VIPROM.2002.1026642
