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

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

Answer 1

[DGM]

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