Finally, we use the principle of wavelet edge detection and suggest an algorithm of automatic threshold choice according to difference color background in wavelet edge detection.

利用小波边缘检测原理，给出一种能根据不同彩色背景自动选取阀值的小波边缘检测算法。

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Finally, we use the principle of wavelet edge detection and suggest an algorithm of automatic threshold choice according to difference color background in wavelet edge detection.

利用小波边缘检测原理，给出一种能根据不同彩色背景自动选取阀值的小波边缘检测算法。

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