Matlab Error in imshow

Error using ==> imageDisplayValidateParams>validateCData at 114
Unsupported dimension

Error in ==> imageDisplayValidateParams at 31
common_args.CData = validateCData(common_args.CData,image_type);

Error in ==> imageDisplayParseInputs at 79
common_args = imageDisplayValidateParams(common_args);

Error in ==> imshow 

Matlab遇到这种情况一般是图片维度不对，往往图片在workspace中是四维的。

解决办法如下：

I=imread('p.tif');

a=I(:,:,1);

b=I(:,:,2);

c=I(:,:,3);

rgb=cat(3,a,b,c);

imshow(rgb);