Merge branch 'oc327-main-patch-21650' into 'main'

oc327 main patch 21650

See merge request !1

README.md

@@ -12,12 +12,18 @@ Note that while this code provides a solid foundation for flame front detection,
 
 ## Content
 
-- MATLAB (R2021b) flame front detection script (scripts/fdetect.m).
+- MATLAB flame front detection script (scripts/fdetect.m)
 - Raw OH-PLIF images used for demonstration purposes (images/).
-- Short MATLAB code for demonstration (demo.m).
+- Short MATLAB code for demonstration (demo.m)..\
+*Note : MATLAB R2021a+ may be required to run some parts of the code. The script fdetect.m uses MATLAB built-in functions defined differently in older versions of MATLAB.*
 
 ## Example output
 ![Output of the demo.m code](/figures/demo.png)
 
 ## FAQ
-
+**Q : I get an error message "ReadIMX not found"**.\
+A : The ReadIMX package is missing or it hasn't been added to the MATLAB path. Follow the instructions in http://www.fast.u-psud.fr/pivmat/html/pivmat_install.html. \
+**Q : I get an error message "Undefined function or variable 'tiledlayout'" when I try to plot the images.**\
+A : tiledlayout is implemented in MATLAB R2019b+.\
+**Q : I get an error message "Undefined variable "images" or class "images.internal.builtins.cannyFindLocalMaxima"" when I try to run the edge detection script.**\
+A : Non-maxima suppression is done using the built-in MATLAB function "cannyFindLocalMaxima" (i.e., see source code of the built-in function edge.m). It is defined differently in older versions of MATLAB which is why this error message may come up. Updating to a newer release is recommended.