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Perceptual JPEG2000 Compliant Coding for Color Images

机译:可感知JPEG2000的彩色图像编码

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摘要

In this paper, a perceptual JPEG2000 compliant coder based on the just noticeable distortion (JND) for the color images is presented. Since the human visual perception to color visual signals has a limited sensitivity, any change below the visibility threshold cannot be detected by human eyes. We therefore propose a new color JND estimator to incorporate into the design of the perceptual JPEG2000 coder. Without introducing the perceptual distortion into input signals, the dynamic range of input signals in each color component of the color image is reduced to increase the compression performance. In the simulation results, the bit rate required by the perceptual JPEG2000 compliant coder is lower than that required by the standard JPEG2000 coder at the perceptually loss less visual quality of the reconstructed color image.
机译:本文提出了一种基于JPEG2000的可感知的编码器,该编码器基于彩色图像的正好可察觉的失真(JND)。由于人眼对彩色视觉信号的感知灵敏度有限,因此人眼无法检测到可见度阈值以下的任何变化。因此,我们提出了一种新的彩色JND估算器,以将其纳入感知JPEG2000编码器的设计中。在不将感知失真引入输入信号的情况下,减小了彩色图像的每个颜色分量中的输入信号的动态范围,以提高压缩性能。在仿真结果中,在感知损失较小的重建彩色图像的视觉质量上,兼容JPEG2000的感知编码器所需的比特率低于标准JPEG2000编码器所需要的比特率。

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