It is line 33 of the attached file that is causing the problem
message = sprintf('Done!\nTotal number of pixels = %d\nBlack pixels = %d = %.1f%%\nWhite pixels = %d = %.1f%%', ...totalNumberOfPixels, numberOfBlackPixels, percentBlackPixels, ...numberOfWhitePixels, percentWhitePixels);
Note the ellipsis (...) which is used in MATLAB to indicate that code on the subsequent line follows code from the previous line. For example
m=42;
fprintf('this is a test of printing of the number %d\n',...
m);
is equivalent to
m=42;
fprintf('this is a test of printing of the number %d\n', m);
In your code, there are two instances of the ellipsis and so either they should be removed, or line breaks should be added. If doing the latter, then the above line of code becomes three lines of code as
message = sprintf('Done!\nTotal number of pixels = %d\nBlack pixels = %d = %.1f%%\nWhite pixels = %d = %.1f%%', ...
totalNumberOfPixels, numberOfBlackPixels, percentBlackPixels, ...
numberOfWhitePixels, percentWhitePixels);
Just replace line 33 with the above (or simply remove the ellipses) and see what happens!
