Find Homogeneity of an Image?

Question

Akhilkrishna Panamkoottathil Ramakrishnan 2022-4-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1705515-find-homogeneity-of-an-image

回答： Image Analyst 2022-4-26

Hi,

I have an image under constant illumination. I found the image is homogeneous by calculating intensity at every pixel. But for my report or better explanation, i need a graph like this (attached below).

If any one have any leads, please let me know.

Thanks in advance

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

Image Analyst 2022-4-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1705515-find-homogeneity-of-an-image#answer_951300

It does not look homogenous to me. It looks like there is a definite pattern of intensity fall off as you go away from the central hot spot. It's probably due to either lighting non-uniformity or lens shading. Not sure what the values represent either. Are they the original intensity values, or the standard deviation in a small window around each pixel? Regardless, you can get another visualization of how varied the pattern is by calling histogram().