Development of quantitative evaluation measure for deterioration of image quality by mosquito noise using cepstrum coefficients

Abstract

In JPEG encoded images, the mosquito noise which is one of visual distortion is occurred around edge region in the case of lower bit rate. It is difficult to estimate the mosquito noise from any encoded image, because the subjective assessment for mosquito noise is dependent with a given image contents. This paper presents a development of quantitative evaluation measure for deterioration of image quality by mosquito noise using cepstrum coefficients. It is seen in our experimental results that mosquito noise can estimate by focusing on higher cepstrum coefficients in each encoded block.