How can I detect the paralles lines in binary image?

I have gray scale image, after I convert to binary image I need to extract the parallel lines in the image to remove on of them.

[Matt J]

Are they 2D-parallel in the image? Or, are they images of lines that are parallel in 3D? The latter is much more complicated.

[Star Strider]

Posting the images would help. Use the brown-framed green ‘picture’ icon just above the text window to attach and display each one.

[Abdelrahiem Hashem]

yes the lines including in the image.

[Image Analyst]

Please read the above suggestions again, and my answer below.

Answer 1

[Image Analyst]

See houghlines(). Look at the demo in the help.