how to enhance edges on images?

how to enhance edges on images?

[Deepak Saini]

yes

Answer 1

[Image Analyst]

You can do a high boost filter, which is essentially a high pass filter added to the original image. For example

kernel = -1*ones(3);
kernel(2,2) = 17;
enhancedImage = imfilter(grayImage, kernel);

[Selva Karna]

thank you Image Analys , but i need clear edge in BW images , clear edge for contour plotting ?

[Image Analyst]

What are BW images? Binary images (only 2 gray levels), or gray scale images? Binary images already have sharp edges, and for gray scale images, that code will sharpen the edges. For contours, you can use contour().

Answer 2

[Deepak Saini]

I need to find sharp edge (front part) for the uploaded x-ray image.

When i am using imbinarize or im2bw, i am getting a very blunt edge.