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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雷军还在直播中透露，小米深入参与电池研发，并且自己制造一部分的电池包，有助于更深入地掌握电池技术，更好地与供应商协同配合，严格把控电池的质量和安全。
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流行语要流行起来，一要看流行度，一要看刺激度。但是现在的不少流行语都是在某一些圈层里流行，流行语破圈的难度在增大。“苏超”和“从从容容、游刃有余，匆匆忙忙、游刃有余”可以算是成功“破圈”的流行语。，更多细节参见safew官方下载
The display story is similarly steady. Both phones use Samsung’s Dynamic AMOLED 2X panels with adaptive refresh rates up to 120Hz, and the S25 is rated for peak brightness of up to 2,600 nits. In everyday use, whether you are scrolling, gaming or watching video, the viewing experience should feel broadly similar between the two devices.