How do I setup ROI once and it will apply to all other images?

Question

Shu Yi Ho 2019-7-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/472051-how-do-i-setup-roi-once-and-it-will-apply-to-all-other-images

编辑： Walter Roberson 2019-7-17

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

The current program I have set each and every image ROI which is very impratical.

How can I only setup once and apply to all other images?

imageFolder = dir('C:\Users\85042513\MATLAB\Projects\BAT CVE\Images\OK\*.jpg');
for i=1:length(imageFolder)
    filename = strcat('C:\Users\85042513\MATLAB\Projects\BAT CVE\Images\OK\',imageFolder(i).name);
    originalImage = imread(filename);
    % REGION OF INTEREST
    f = figure('Name','Image','NumberTitle','off');
    imshow(originalImage);
    rect = getrect(f); % select roi with mouse
    ori_roi = originalImage( rect(2) : (rect(2)+rect(4)) , rect(1) : (rect(1)+rect(3)) , : ); % store roi in matrix
end

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Answer 1

Walter Roberson 2019-7-17

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/472051-how-do-i-setup-roi-once-and-it-will-apply-to-all-other-images#answer_383498

编辑：Walter Roberson 2019-7-17

在 MATLAB Online 中打开

imageFolder = dir('C:\Users\85042513\MATLAB\Projects\BAT CVE\Images\OK\*.jpg');
numfiles = length(imageFolder);
ori_roi = cell(numfiles, 1);
i = 1;
filename = strcat('C:\Users\85042513\MATLAB\Projects\BAT CVE\Images\OK\',imageFolder(i).name);
originalImage = imread(filename);
% REGION OF INTEREST
f = figure('Name','Image','NumberTitle','off');
imshow(originalImage);
rect = getrect(f); % select roi with mouse
ori_roi{i} = originalImage( rect(2) : (rect(2)+rect(4)) , rect(1) : (rect(1)+rect(3)) , : ); % store roi in matrix
for i=2:length(imageFolder)
    filename = strcat('C:\Users\85042513\MATLAB\Projects\BAT CVE\Images\OK\',imageFolder(i).name);
    originalImage = imread(filename);
    ori_roi{i} = originalImage( rect(2) : (rect(2)+rect(4)) , rect(1) : (rect(1)+rect(3)) , : ); % store roi in matrix
end