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Toward a perceptual image quality assessment of color quantized images

机译:对彩色量化图像进行感知图像质量评估

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Color image quantization is an important operation in the field of color image processing. In this paper, we consider new perceptual image quality metrics for assessment of quantized images. These types of metrics, e.g. DSCSI, MDSIs, MDSIm and HPSI achieve the highest correlation coefficients with MOS during tests on the six publicly available image databases. Research was limited to images distorted by two types of compression: JPG and JPG2K. Statistical analysis of correlation coefficients based on the Friedman test and post-hoc procedures showed that the differences between the four new perceptual metrics are not statistically significant.
机译:彩色图像量化是彩色图像处理领域中的重要操作。在本文中,我们考虑了用于评估量化图像的新感知图像质量指标。这些类型的指标,例如在对六个公开可用的图像数据库进行测试期间,DSCSI,MDSI,MDSIm和HPSI与MOS的相关系数最高。研究仅限于由于两种压缩方式而失真的图像:JPG和JPG2K。根据Friedman检验和事后程序对相关系数进行的统计分析表明,四个新的感知指标之间的差异在统计上并不显着。

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