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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?
In Trump's eyes it is a big business opportunity for the US oil sector. "We're going to be extracting numbers in terms of oil like few people have seen," he said at a news conference in mid-January, after a meeting with energy bosses at the White House.。业内人士推荐搜狗输入法2026作为进阶阅读
Last month the government launched a three-month consultation on banning social media for under-16s in the UK, after the world's first ban took effect in Australia last year.
int idx = arr[i] - min;。同城约会是该领域的重要参考