Problem with imread function

edit

if you have a file path like:

"D:\Users\Rémy\Desktop\tipe\my.png"

python will interpret the \U part (and the following 4 bytes) as a unicode escape sequence, also the \t will be interpreted as a TAB -- no, you don't want that ;)

either use double backslashes:

"D:\\Users\\Rémy\\Desktop\\tipe\\my.png"

or single forward ones (even on windows !)

"D:/Users/Rémy/Desktop/tipe/my.png"

or make a "raw" string of it:

r"D:\Users\Rémy\Desktop\tipe\my.png"

then, you ALWAYS have to CHECK the outcome from imread():

img = imread(...)
if not img:
    # fail, you can't go on !

last, just saying, even IF your name is Rémy, it's rarely a good idea, to have such things as an é in a filepath, also rather try to avoid spaces in your filenames (it's all "asking for trouble" !)