zoosy's profile - activity

Hi Sturkmen,

I've installed openCV in CentOS... I've managed to modify the script in order to give more arguments from command line and also to save the image using imwrite. The scale down to speed the process it's perfect, because with scale=1 it takes a very very long time.

I have to play to this line of code:

if( contours.size()== 1 & contours[0].size() < 5 )

because it's happening what I wrote above: the contour stops if few pixels (from pharanteses or commas) are in their way. If I use more, let's say 8, then the contour continues giving me a bigger white zone. Then, I can take the coordinates and compute the final 4 coordinates. The 2 corrections doesn't help in this case.

I'll be back with the final script that gives me what I need...

Your help is much appreciated!

Zoosy

I'll play with it right now and will try to understand the logic.

Thank you again and I'll let you know the results.

Best regards, Zoosy

OK, I've been playing with sturkmen's script with around 10 images (invoices) and here are 2 examples of something that stops the script from getting the right area. If the contour has some long characters (parentheses or even commas) the script doesn't go forward. In other words, the findContours function is very strict.

Now, the question is: Can I ignore 5-10 pixels around the text to get the right contours? I've looked in the opencv manual, but didn't find anything like that at findContours function.

Thank you all again for your time!

First original image:

Script result:

Second original image:

Script result:

Hi sturkmen,

Thank you for your reply... I'll give it a try today and I'll get back to let you all know the result. I'll make some tests on multiple layouts.

I'll be back :)

Zoosy

Hi Balaji, I've uploaded the original image in the problem body

Hi theodore, the pattern is not the same... the invoices are from multiple vendors of my client. That's why I need to find a suitable zone to put my barcode.

Thank you all for your involvement!

My problem is to find an area suitable to put the barcode... so, in other words, the barcode is applied after I find the suitable area.

Hi all,

I have a project and I'm stuck... can you please help me to move on?

I'm scanning some documents for a client and I have to apply a software barcode on the first page of the documents, but without covering information ... so I have to find the biggest white zone on the image.

If it's important, I'm scanning in B&W (binary).

I'll upload an example to understand what I mean. The red zone seems to be the biggest white zone in this image and I want to put the barcode in the middle. What I need is to find the coordinates of the white zone. The original image is down below.

Original image: