SSIM was chosen over CNN-based approaches for a deliberate reason: reproducibility without infrastructure. SSIM is a deterministic mathematical function. No training data, no model weights, no GPU, no framework dependencies. Anyone with fontconfig and node-canvas can reproduce these exact numbers on the same platform.
Stateful transforms are simple objects with member functions that maintain state across calls:
。关于这个话题，WPS官方版本下载提供了深入分析
香港移民潮：花費30萬港幣帶狗狗邁向新生活2021年7月3日
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