MATLAB: Error using rgb2gray

errro using rgb2gray

image is in png format.

my code:

C= imread(rgb2gray(I));

error:

Error using rgb2gray>parse_inputs (line 80)

MAP must be a m x 3 array.

Error in rgb2gray (line 52)

isRGB = parse_inputs(X);

Error in DroseyeSvm (line 6)

C=imread(rgb2gray(B));

Best Answer

C = rgb2gray( imread(FileNameGoesHere));

Or if you already have an image array in I then just

C = rgb2gray(I);

Related Solutions

MATLAB: Rgb2gray error

Convert to gray scale:

Filelist= dir('Clipboard*.png');
numberOfFiles = length(Filelist);
for k = 1 : numberOfFiles % Don't use i (the imaginary variable).
    thisImage = imread(Filelist(k).name);
    [rows, columns, numberOfColorChannels] = size(thisImage);
    if k == 1
        % Instantiate I with the size of the first image.
        I = zeros(rows, columns, numberOfFiles, class(thisImage));
    end
    if numberOfColorChannels > 1
        % It's color.  Need to convert to gray scale before putting it into the 3D image as the k'th slice.
        I(:,:, k) = rgb2gray(thisImage);
    else
        % Already grayscale.  No need to convert.  Just put in directly as the k'th slice.
        I(:,:, k) = thisImage;
    end
end

MATLAB: Return value of rgb2gray

It returns an MxN numeric array.

Best Answer

Related Solutions

MATLAB: Rgb2gray error

MATLAB: Return value of rgb2gray

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