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?
目前该功能仅面向 Max 订阅用户开放，未来将扩展至 Pro 订阅用户。
，这一点在爱思助手下载最新版本中也有详细论述
The simultaneous constraints of code quality requirements via AGENTS.md, speed requirements with a quantifiable target objective, and an output accuracy/quality requirement, all do succeed at finding meaningful speedups consistently (atleast 2x-3x)
（一）非法持有鸦片不满二百克、海洛因或者甲基苯丙胺不满十克或者其他少量毒品的；
CNN has requested comment on the report from the Chinese Embassy in Washington, DC.