Looping through 4 Images that have fixed names

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Hello. I have 4 images in memory that I want to loop through and perform some analysis on. I can't find a way to do this. The image names (that are held in memory) are always the same names.
IMList=app.IM1, app.IM2, app.IM3, app.IM4

Accepted Answer

Bjorn Gustavsson
Bjorn Gustavsson on 26 Oct 2021
You can for example put the filenames into a cell-array:
imFileNames = {'im1.jpg','im2.png','im3.jpeg','im5.tiff'};
Then you can easily load the images one-by-one and do the single-image analysis on each:
for iIm = 1:numel(imFileNames)
currIm = imread(imFileNames{iIm});
results = fancy_img_processing(currIm);
Bjorn Gustavsson
Bjorn Gustavsson on 27 Oct 2021
Sloppy reading by me, fortunately close enough for you to turn it into a solution!

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More Answers (2)

the cyclist
the cyclist on 26 Oct 2021
IMList = 1×4 string array
"app.IM1" "app.IM2" "app.IM3" "app.IM4"
creates a 1x4 string array, and then you can loop through that array to use the names.
Bjorn Gustavsson
Bjorn Gustavsson on 26 Oct 2021
Then dont bother faffing about, simply put the filenames into a cell-array. See my answer.

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Walter Roberson
Walter Roberson on 26 Oct 2021
IMList = {app.IM1, app.IM2, app.IM3, app.IM4};
nimg = length(IMList);
for K = 1 : nimg
IM = IMList{K};
app.ROI_C = IM; %or whatever
%more stuff
  1 Comment
Jason on 26 Oct 2021
Thanks Walter, but I had worked it out - sorry I I've already accepted the previous answer

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