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Structural similarity index measure - Wikipedia SSIM is a perception -based model that considers image degradation as perceived change in structural information, while also incorporating important perceptual phenomena, including both luminance masking and contrast masking terms
SSIM_百度百科 SSIM(结构相似性)是由德州大学奥斯丁分校图像和视频工程实验室(Laboratory for Image and Video Engineering)提出的图像相似度测量指标,通过比较未压缩的无失真图像与失真图像的亮度、对比度与结构三个维度构建数学模型,其核心参数包括图像均值(μ)、标准差