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SSIM (Structural Similarity Index Measure) compares two images by evaluating luminance, contrast, and structural patterns across local windows. It returns a score from -1 to 1: 1.0 means the images are pixel-identical, 0 means no structural correlation, and negative values mean the images are anti-correlated (less alike than random noise). For glyph comparison, it answers the question: do these two rendered characters share the same visual structure?
，更多细节参见搜狗输入法下载
这是对因地制宜、实事求是的践行。，推荐阅读51吃瓜获取更多信息
圖像來源，BBC Chinese / Lok Lee
"Ministers must urgently get a grip on the spiralling costs of the Covid Inquiry and commit to delivering answers swiftly and efficiently."