This approach addresses eliminating mostly of signals disturbing characters by only reserving low-frequency portion of result of wavelet transform which carries general picture of original character, at the same time, ignoring high-frequency portion of result of wavelet transform which carries mostly of disturbing signals.

  • 此方法只对反映原始字符信号概貌的小波变换低频部分保留,同时忽略包含大量干扰信号的高频部分,由此达到剔除大部分干扰信号的效果。

  • 互联网摘选 2025-01-20 12:47:03

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