This article has introduced an improved algorithm variable difference threshold value which is based on gradient.

文章介绍了一种改进的基于斜率的可变差分阈值算法。

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Then, the best threshold value is calculated basing on the gradient magnitude mean and the variance of the image.

再由图像的梯度幅值均值和方差计算出图像的最佳阈值。

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Then, the best threshold value is calculated basing on the gradient magnitude mean and the variance of the image.

再由图像的梯度幅值均值和方差计算出图像的最佳阈值。

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