Error using rgb2array and gpuArray

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arun chauhan
arun chauhan 2014-4-26
回答： Edric Ellis 2014-4-28
I ran the given commands as directed in rgb2gray help, but got errors.
I = gpuArray(imread('board.tif')); % this worked fine
J = rgb2gray(I); % error in this line
figure, imshow(I), figure, imshow(J);
Errors.
Error using imapplymatrix>checkOutputClass (line 145)
The output class must be a valid numeric datatype.
Error in imapplymatrix (line 69)
checkOutputClass(outputClass);
Error in rgb2gray (line 62)
I = imapplymatrix(coef, X, class(X));
Please help me with this

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回答（1 个）

Edric Ellis
Edric Ellis 2014-4-28
You need to be using at least R2013b for RGB2GRAY to operate on gpuArray data. See the Image Processing Toolbox release notes.

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