Creating a table of ROI average values

Question

Sarron Simpson 2022-12-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1873422-creating-a-table-of-roi-average-values

回答： Mandar 2023-2-8

Hello,

I have a folder of ~2,000 grayscale images. I've selected a ROI and gotten the average pixel value from those areas. I just need to figure out a way to create a table so that I could show that frame 24 has an average value of "x". I'm not sure where to start on this, any help would be much appreciated.

Thanks!

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Answer 1

Mandar 2023-2-8

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https://ww2.mathworks.cn/matlabcentral/answers/1873422-creating-a-table-of-roi-average-values#answer_1166455

在 MATLAB Online 中打开

I understand that you want to create a table that shows average value of the ROI for each frame. Refer the demo example below which makes use of "table" function to generate the table with the entries of frame number and respective average ROI value of each frame. Refer the link below to know more about creating tables in the MATLAB.

Link: https://in.mathworks.com/help/matlab/matlab_prog/create-a-table.html

Frame_number = [1; 2; 3; 4];
Avg_ROI_value = [12.5;55.5;36.7;12.4];
Entries = table(Frame_number,Avg_ROI_value)
Entries = 4×2 table
    Frame_number    Avg_ROI_value
    ____________    _____________

         1              12.5     
         2              55.5     
         3              36.7     
         4              12.4     