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?
Mr Duffy called for proposals from commercial companies to build a reactor that could generate at least 100 kilowatts of power.
，详情可参考搜狗输入法2026
这些年她还经常陷入“老年保健品”的套路， 家里至今还堆满她买来的各类“根治”老年慢性病、“延年益寿”的保健品，许多连包装都没拆。她总是抱着“万一有用”的心态，一次次掏钱。
Inside the stamp, the entire surface is filled with monochrome dark illustrations etched into the background like fine engraving. The illustrations must depict 5–8 of the most universally iconic and recognizable objects, characters, vehicles, symbols, and locations from [MOVIE] — chosen specifically because anyone who has seen the film would instantly recognize them. All arranged loosely across the full width of the stamp with generous spacing. Detailed technical engraving style — only outlines and fine internal linework, no fills, high contrast against the background.