def __init__(self, url: str, title: str = "", author: str = "",
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.
，更多细节参见新收录的资料
3 transform chain，推荐阅读新收录的资料获取更多信息
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