the threshold of grads image 梯度图像阈值化
Finally, the threshold image was filtered by morphological filter and then accurate target region was obtained.
最后，对得到的二值图像进行形态学变换，得到精确的目标分割区域。
But after the Gauss filter process, the threshold image is changed into smooth one which has smaller burr and has better connectedness.
提出一种“高斯滤波”的方法去除这些白点，使二值化图像平滑、少毛刺，并具有较好的连通性。
The optimum threshold determined by the theory of image segmentation is to be the crossover point of the fuzzy enhancement in order to enhance the contrast of image.
利用图像分割原理确定的最佳阈值作为模糊增强的分界点，完成对图像的对比度增强。
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