gray threshold

location method of vehicle-license-plate images based on gray threshold and gradient

基于灰度阈值和梯度差的车牌定位技术

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a method is presented to calculate automatically the best gray threshold, which is suitable for images under different scanning resolutions.

提出一种灰度阈值自动计算方法，适合于自动计算不同扫描分辨率下的图像的最佳灰度阈值。

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In this paper, the method for the optimal gray threshold is given, which is based on the maximum class separation distance criterion of pattern recognitive decision theory.

利用基于模式识别决策理论的最大类间距准则，给出了求解最佳分割灰度门限的方法。

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in the algorithm, gray threshold segmentation, dilation and erosion, and edge detection using cnn are performed successively.

采用细胞神经网的灰度阈值分割，膨胀腐蚀，边缘检测等操作。

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