Some hints:
- Avoid global variables, because they impede the debugging massively. If a code grows (e.g. over 20'000 lines of code) you will hate it to started with globals, because it is nearly impossible to find out, which code is responsible for the current value of a variable.
- Do not use indices in the names of variables: "Image1", "Image2", ... Much neater: "Image{1}", "Image{2}", ... Then you can use an index to access an image. See your ListeImages, which is the nive solution already.
Now the actual problem:
Instead of closing the former figure and creating a new one, reuse the current figure and axes to avoid the flickering:
% Replace
fig = get(groot,'CurrentFigure');
if ~isempty(fig)
close(fig);
end
f = figure('color', 'w', 'MenuBar', 'none', 'Position', [500 500 800 600], 'Name', 'Roger');
set(f, 'Name', 'AfficheImage_2022_02_03.m');
ax1 = axes;
% by:
f = findobj(groot, 'Type', 'Figure', 'Name', 'AfficheImage_2022_02_03.m');
if isempty(fig)
f = figure('color', 'w', 'MenuBar', 'none', 'Position', [500 500 800 600], ...
'Name', 'AfficheImage_2022_02_03.m');
ax1 = axes('Parent', f);
else
ax1 = findobj(f.Children, 'flat', 'Type', 'axes');
end
Now do not recreate the image object with imshow to save time, but create the image once using image() and update the XData, YData and CData only.
The re-creation takes much longer than redefining the properties of existing objects.
