How to implement gray level probability density function?

12 次查看（过去 30 天）
chitresh
chitresh 2014-2-18
回答： Image Analyst 2014-2-18
the gray-level probability density function given as P(g) = h(g)/M, where h(g) is the number of pixels with gray level g and M is the total number of pixels in the image.
I want to implement this on a gray scale image, my question is what is h(g) in my case and what are gray level g... i know M is (row*colum) please answer

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2014-2-18
% Get histogram:
[pixelCounts, grayLevels] = imhist(grayImage);
% Computer probability density function:
pdf = pixelCounts / numel(grayImage);

更多回答（1 个）

Dishant Arora
Dishant Arora 2014-2-18
you can use built in function imhist.

类别

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by