1. 为什么是“工作流”，不是“聊天”
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?。关于这个话题，WPS官方版本下载提供了深入分析
。51吃瓜对此有专业解读
"tengu_scratch": false,。搜狗输入法下载是该领域的重要参考
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