how to rectify this error

2014 1 23
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更新时间：2014 1 23
1 次查看（30 天）

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Error using imhist Expected input number 1, I or X, to be two-dimensional.
Error in imhist>parse_inputs (line 277) validateattributes(a, {'double','uint8','int8','logical','uint16','int16','single','uint32', 'int32'}, ...
Error in imhist (line 59) [a, n, isScaled, top, map] = parse_inputs(varargin{:});
Error in mainnnn (line 7) [p,x]=imhist(J,256);

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回答（1 个）

Walter Roberson
Walter Roberson 2014-1-23

0 个投票

You probably used imread() to read in an image, and the image is stored as a 3 dimensional matrix because it is an RGB (truecolor) image. imhist() can only be applied to 2D images such as grayscale images.

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