image degradation

Defocus is one of the most familiar reason inducing image degradation.

离焦是造成图像模糊的最常见原因之一.

A robust digital watermark embedding algorithm according to assigned image degradation

确定图像降质的鲁棒性数字水印嵌入算法

Based on the study of formation mechanism and simulation method, two simulation methods of the aero-optical effects image degradation are proposed: the degradation simulation in a point spread function space, variable degradation simulation in point spread function space.

在对形成机理和仿真方法研究的基础上，提出了气动光学效应图像退化的两种仿真方法：点扩展函数空间不变的退化仿真，点扩展函数空间可变的退化仿真。

An advantage of wavelet-based Video compression is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in DCT compression.

由小波变换编码实现的视频压缩在具备高压缩比的基础上，仍拥有较高的主观视觉效果，避免了由分块DCT变换引起的方块效应。