How do I Find the Area of Cracks in this Image,I'm new to MATLAB please do Help me.Even I want to remove the Yellow line from the Image

I just know imread,imshow,im2gray,sobel edge matrix,im2bw

Image Link: https://provelopassion.files.wordpress.com/2011/07/wp_000359.jpg

Answer 1

[Image Analyst]

I have a few color segmentation demos in my File Exchange

http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

Feel free to adapt one of them. Also, find papers on asphalt characterization and road following in VisionBib