IN matlab 2017b version i have a error in canny edge detection like this.

Segmentedimg = edge(Enhanceimg,'canny'); figure('Name','Segmented image','NumberTitle','off'); imshow(Segmentedimg);

title('Segmented Image','fontsize',10,'fontname','Times New Roman','color','Black');

[Umeshraja]

Hi @sasi g, I am not getting any error. Can you mention more on what kind of error are you encountering? Also attach the file you are using for analysis.

Answer 1

[Divyam]

Hi @sasi g,

In case you are using an RGB image, you can use the "rgb2gray" function to convert the RGB image to grayscale as the "edge" function takes a grayscale image as input. Apart from that, capitalize the option you are choosing for "edge" function as shown in the code below:

% Optional: converting RGB image to grayscale
Enhanceimg = rgb2gray(Enhanceimg);

% The method name should be "Canny" instead of "canny"
Segmentedimg = edge(Enhanceimg,'Canny'); 
figure('Name','Segmented image','NumberTitle','off'); 
imshow(Segmentedimg);
title('Segmented Image','fontsize',10,'fontname','Times New Roman','color','Black');