your problem is you're trying to change the value of the loop index k inside the loop.
that doesn't do anything because matlab for loops don't work like a traditional for loop does (in C, C++, C#, Java, JS, whatever language you know), instead, it sets i to the next value in the loop vector each iteration (ehm foreach loop)
look here:
x = [];
for i = 1:10
x = [x i];
% try to skip number 6
if i == 5
i = 7;
end
end
disp(x);
1 2 3 4 5 6 7 8 9 10
so instead of skiping i = 6 as expected, it simply ignores the fact that we changed i inside the loop and the output of this loop is the entire array.
The answer to your question is just use a while loop (there were a few other issues with your code, I cleaned it up a bit):
waitMax = 20;
k = 1;
while k < 6
jpgFilename = sprintf('image%d.jpg', k);
fullFileName = fullfile('C:\fproject\final_project\', jpgFilename);
if exist(fullFileName, 'file') %if the image exist in the folder
rgbImage = imread(fullFileName);
figure, imshow(rgbImage)
else
for count=1:waitMax
%wait 20 seconds to the image
pause(1)
if exist(fullFileName, 'file')
k=k-1;
break; %Exit this loop (return to the main loop)
end
end
end
k=k+1;
end
