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Application of Improved Just Noticeable Distortion Profile with Image Coding
Author(s): 
Pages: 15-18
Year: Issue:  13
Journal: Video Engineering

Keyword:  JND模型DCT人类视觉系统图像编码;
Abstract: 对现有的DCT域恰可察觉失真(Just-Noticeable-Distortion,JND)模型进行改进,首先对JND模型中的亮度自适应因子进行准确化,其次在考虑纹理掩盖效应时引入平均边缘权重系数对图像进行分块,使JND模型更加符合人眼的视觉特性.并将改进的JND模型应用于图像编码中.实验结果表明,改进的JND模型和人眼特性的吻合性更好,在保证图像主观质量一定的情况下,与现有JND模型相比,可以容...
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