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Create a binary edge image of Malards.jpg using only the red channel of the image. Obtain the binary image with all edges that are stronger than 50 using Roberts edge detecti

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Mohamed arsh Khatib
回答： DGM 2023-3-12
tried to create a binary edge image using only red channel of the image but when i was running the code i was receiving the error
Error using imbinarize
Expected I to be one of these types:
uint8, uint16, uint32, int8, int16, int32, single, double
Instead its type was logical.
Error in imbinarize>validateImage (line 262)
validateattributes(I,supportedClasses,supportedAttribs,mfilename,'I');
Error in imbinarize>parseInputs (line 198)
validateImage(I);
Error in imbinarize (line 134)
[I,isNumericThreshold,options] = parseInputs(I,varargin{:});
Error in untitled1 (line 5)
binaryImg = imbinarize(edgeImg);
CODE:
img = imread('Malards.jpg');
redChannel = imsplit(img);
redChannel = redChannel(:,:,1);
edgeImg = edge(redChannel, 'Roberts', 50);
binaryImg = imbinarize(edgeImg);
imshow(binaryImg);
any suggestions and help please

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回答（1 个）

DGM
DGM 2023-3-12
The output of edge() is already a binary image (class 'logical'). There's no need to use imbinarize() on it.

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