How to provide region of interest (ROI) for edge detection and corner detection in Matlab?

 In Matlab, you can use the built-in functions "edge" and "corner" to detect edges and corners respectively. These functions allow you to specify a region of interest (ROI) by providing a binary mask that indicates the pixels within the ROI. Here's how you can do it:

1. Load your image into Matlab using the "imread" function.

 

img = imread('your_image.jpg');

2. Create a binary mask that indicates the pixels within the ROI. You can do this using any method that suits your application, for example, by manually drawing a region on the image using the "roipoly" function.

Create a binary mask that indicates the pixels within the ROI. You can do this using any method that suits your application, for example, by manually drawing a region on the image using the "roipoly" function.

 

roi_mask = roipoly(img); % Interactive ROI selection 

NOTE:-

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