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?
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Пр словам политика, Брюссель разрабатывает план на 23 миллиарда евро для поддержки регионов, пострадавших от разрыва экономических связей с Россией.
Anxiety is growing over a potential war between Iran and the US in the Middle East, with embassies evacuating staff and airlines cancelling flights as tensions mount.，这一点在搜狗输入法2026中也有详细论述
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