How to find white line in image using matlab?

I want to detect the horizontal white line in the image (inside the circle) so which commands and program to use?

Answer 1

[Image Analyst]

Try adapthisteq() and then imbinarize().

[Lakshay Gopalka]

Hi, Thank you for the response.

I was able to convert image into binary but the issue is that i want only one horizontal line (as marked in picture) and other should be zero (black) so what should I do next?

[Image Analyst]

Maybe take the one closest to the center of the image, as long as the size if great enough. Use regionprops() to do that. If you don't know how to do that, see my Image Segmentation Tutorial in My File Exchange

[Lakshay Gopalka]

I tried using Image Segmentation tutorial but somehow, I was unable to find the desired result so can you offer any help?

Can it be done using Hough Transform to fing the longest line then somehow create a box for that line?

Thank you.

[Image Analyst]

Give it a try. Follow the examples and adapt as needed. Obviously I don't have the code already, and would have to do the same thing you will need to do.