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How to select only first picture from a given file using GUI, then use variables from one function in another???

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Ellis Berry
Ellis Berry 2016 年 5 月 25 日
閉鎖済み: MATLAB Answer Bot 2021 年 8 月 20 日
Hi everyone,
I have a pushbutton in a gui and I want to use the 'uigetdir' function, or something similar, to make it load ONLY the first image from a file. I then want to use the 'roipoly' function on this picture. So is there a way something like Image = uigetdir(roipoly(1)); ???
Also, when I have used this roipoly function I will be left with the points that have been clicked on in the image (xi, yi etc..). If I save these values as xMin = min(xi) and yMin - min(yi) etc then how can I use these variables in another function?
So how can I get another pushbutton to the call these values to be used in that part of the code?
Many thanks for all your help,
Ellis

回答 (1 件)

Walter Roberson
Walter Roberson 2016 年 5 月 25 日
[filename, pathname] = uigetdir('Select an image');
thisfile = fullfile(pathname, filename);
myimage = imread(thisfile);
roi = roipoly(myimage);

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