how can i make a csv file from multiple tif or jpg image ??

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Beyung Doo Jo 2011-9-22

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https://ww2.mathworks.cn/matlabcentral/answers/16424-how-can-i-make-a-csv-file-from-multiple-tif-or-jpg-image

for i= 1:12 file_name=['C:\Users\Lab\Desktop\xray\xray_',num2str(i),'.jpg'];

B_tmp=load(file_name);

figure(1) imagesc(B_tmp) end

csv_filename = ['C:\Users\Lab\Desktop\xray' filesep 'data.csv']; fp = fopen(csv_filename,'w'); if fp<0 uiwait(msgbox('Cannot create a new CSV file','warning','warn')); return; end

for k = 1:12 fprintf(fp,'%s,%.2f,%.2f,%.2f,%f,%f\n',filenames{k},theta(k),u_off,v_off,I_0(k),1); end

fclose(fp);

acually, i have to put imformation on iamge such as filenames{k},theta(k),u_off,v_off,I_0(k). but first, i cannot load multiple tif or jpg files :(:( could u help me?

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Jan 2011-9-22

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Answer 1

Jan 2011-9-22

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https://ww2.mathworks.cn/matlabcentral/answers/16424-how-can-i-make-a-csv-file-from-multiple-tif-or-jpg-image#answer_22206

在 MATLAB Online 中打开

You can use a cell to store the different images:

b_tmp = cell(1, 12);
for i = 1:12
  file_name = ['C:\Users\Lab\Desktop\xray\xray_',num2str(i),'.jpg'];
  B_tmp{i} = imread(file_name);  % Better than LOAD?!
  figure(1)
  imagesc(B_tmp{i})
end

I would use IMREAD instead of LOAD to read a JPG file.

Another idea would be to open the CSV file before the loop to read the images and write one line after the other. Then you do not have to keep more than 1 image at the same time in the memory.