How to calculate the low and the high value of the threshold (histogram) ?

Question

marwa za 2017-10-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/361612-how-to-calculate-the-low-and-the-high-value-of-the-threshold-histogram

回答： KSSV 2017-10-17

can you help me, which function allows to calculate the low and the high value of the threshold (histogram)like the following histogram

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

KSSV 2017-10-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/361612-how-to-calculate-the-low-and-the-high-value-of-the-threshold-histogram#answer_286125

在 MATLAB Online 中打开

doc min and max. Also see this code by Image Analyst

[pixelCounts, grayLevels] = imhist(grayImage);
minGrayLevel = min(grayImage(:));
maxGrayLevel = max(grayImage(:));
% or
minGrayLevel = find(pixelCounts > 0, 1, 'first');
maxGrayLevel = find(pixelCounts > 0, 1, 'last');
minCounts = min(pixelCounts(:));
maxCounts = max(pixelCounts(:));