Performance test for image quality assessment

There are many objective methods for quality assessment(QA) in static image compression domain, but the research on assessing QA's concidence with human quality judgements is inadequate. In order to compare their performances, an assessment method was designed. First build test image database, then obtain objective and subjective scores, finally compute all kinds of results based on the criteria. The test results prove that SSIM is more adapted than PSNR for assessing static image quality, and also verify the accurate of the proposed method.