Search found 4 matches

by mark0978
2011-05-16T09:15:05-07:00
Forum: Users
Topic: Cleaning up noise around text
Replies: 19
Views: 101175

Re: Cleaning up noise around text

I was kind of stunned at how well some of the cleanups worked. Thanks very much.
by mark0978
2011-05-10T16:20:48-07:00
Forum: Users
Topic: Cleaning up noise around text
Replies: 19
Views: 101175

Re: Cleaning up noise around text

The morphology really does clean up the image for human readability, but when I zoom in though, I think it square is going to possibly hurt the OCR :-( However diamond may actually help quite a bit. I get an invalid argument for -morphology when I use this command: convert cleanup.tif -morphology th...
by mark0978
2011-05-09T16:02:25-07:00
Forum: Users
Topic: Cleaning up noise around text
Replies: 19
Views: 101175

Re: Cleaning up noise around text

Here is a snippet from the image. I've read quite about about morphology, but still haven't managed to come up with something that helps with cleanup without doing more damage than it fixes.

http://www.imagehawk.com/images/cleanup.tif
by mark0978
2011-05-09T09:14:23-07:00
Forum: Users
Topic: Cleaning up noise around text
Replies: 19
Views: 101175

Cleaning up noise around text

I've tried -noise radius and -noise geometry and they don't seem to do what I want at all. I have some b&w images (TIFF G4 Fax compression) with lots of noise around the characters. This noise takes the form of pixel blobs that are 1 pixel wide in most cases. My desire is to do the following 3 steps...