I would like to determine the average of a region of pixels within an image and quantify it automatically. How can I do that?

19 次查看（过去 30 天）

Neo 2022-6-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1736415-i-would-like-to-determine-the-average-of-a-region-of-pixels-within-an-image-and-quantify-it-automati

评论： Image Analyst 2022-6-21

Hello,

I have an .lsm image and with a single color channel. Each image has a couple of regions of pixels that I would like to calculate the mean. Is there a function that can identify these regions of interest and quantify its mean automatically?

Also is there a function in Matlab that could count the regions within an iamge based on its RGB?

Thank you!!

Kind wishes,

Neo

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。

采纳的回答

Image Analyst 2022-6-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1736415-i-would-like-to-determine-the-average-of-a-region-of-pixels-within-an-image-and-quantify-it-automati#answer_981575

在 MATLAB Online 中打开

You need to create a binary image and then use regionprops

In short it's

props = regionprops(binaryImage, grayScaleImage, 'MeanIntensity');
allMeanIntensities = [props.MeanIntensity]

See my Image Processing Tutorial in my File Exchange:

Image Analyst's File Exchange

8 个评论
显示 6更早的评论隐藏 6更早的评论

Neo 2022-6-21

@Image Analyst in case you did not see earlier, thank you!!

Image Analyst 2022-6-21

@Neo, glad it worked for you. Thanks for accepting the answer.

请先登录，再进行评论。

类别

Image Processing and Computer Vision Image Processing Toolbox Image Segmentation and Analysis

在 Help Center 和 File Exchange 中查找有关 Image Segmentation and Analysis 的更多信息

产品

Image Processing Toolbox

Community Treasure Hunt

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

Start Hunting!

Translated by