First sum the whole image vertically. That will allow you to get column1, column2, column3 and column4 where the bar patterns start and stop. Then sum the image horizontally between column 1 and column2 to get the profile of the left block. Then do the same to get the average profile of the right block. Then threshold each profile and pass into diff() to find where each bright-to-dark and dark-to-bright transition is. Now you have two arrays saying where each line starts and stops and you can compare them, for example subtract to find out how many image lines the line/bar on the left is separated vertically from the corresponding one on the right. Let me know if you can't figure it out. If you need me to work on the code, you should upload an image without the red lines.
When I try to download your image, all I get is the red lines on a black background - no bars at all. Please upload it somewhere where I can get the monochrome image of the bars without the red lines.
