''Error using reshape: To RESHAPE the number of elements must not change''
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Touhidul islam
le 27 Déc 2017
Commenté : Image Analyst
le 12 Oct 2019
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/168192/image.jpeg)
in image one you can say it is showing no error ,but in second image (b.img) it is showing ,error . why this is happening?
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Image Analyst
le 27 Déc 2017
Use this:
[rows, columns, numberOfColorChannels] = size(I);
F = reshape(I, rows*columns, numberOfColorChannels);
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marie lasz
le 12 Oct 2019
hello Bhanveet,
Did you find out the solution of this error? because I am also getting the same error and I am also working on watermarking.
Image Analyst
le 12 Oct 2019
The image array called "message" is most likely color. Use rgb2gray() to cast it to gray scale.
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Benjamin Kraus
le 27 Déc 2017
What is the size of I both before and after calling imresize on the second image? Is one of the images grayscale or black and white? If so, it is possible the third dimension of the image is 1 instead of 3.
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