errors in my code

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nour
nour 2022-12-12
评论： nour 2022-12-13
the reset and complement functions don't work even though I wrote the codes for them correctly
app.UIAxes.cla;
app.UIAxes2.cla;
app.img = "";
app.img2 = "";
app.img2 = imcomplement(app.img);
imshow(app.img2 , 'Parent', app.UIAxes2);

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Image Analyst
Image Analyst 2022-12-12
Not sure of your definition of "correctly". Yes, that won't give a syntax error, but it's not correct.
You are setting two global variables (fields of the global app variable): img and img2. These are set to the null string.
imcomplement takes an image variable as an input -- an actual numerical matrix, not a character string.
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nour
nour 2022-12-13
it worked thank you very much

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