Re: [Gimp-user] extract text in a rectangle from a jpg file
My image is 640 x 512 pixels X Y resolution are both 300 pixels/in. How to improve the image so that the OCR programs will recognize the text better? I try the Scale Image menu with different values of pixels X Y resolutions (e.g. 1920 x 1536 pixels X Y resolution are both 1200 pixels/in) but does not seem to improve the result. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] extract text in a rectangle from a jpg file
On Wednesday 04 March 2009, powah wrote: My image is 640 x 512 pixels X Y resolution are both 300 pixels/in. How to improve the image so that the OCR programs will recognize the text better? I try the Scale Image menu with different values of pixels X Y resolutions (e.g. 1920 x 1536 pixels X Y resolution are both 1200 pixels/in) but does not seem to improve the result. In most cases there's not much you can do, since scaling the image up doesn't increase the amount of available information. The best programs to improve such images do nothing more but good (sometimes surprisingly good) guesses. Maybe greycstoration[1] could improve the situation a bit? And the OCR program might work better with increased contrasts, so playing around with the levels (or curves) tool could also help. Daniel [1] http://cimg.sourceforge.net/greycstoration/index.shtml signature.asc Description: This is a digitally signed message part. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] extract text in a rectangle from a jpg file
On Wed, 4 Mar 2009 16:08:31 + (UTC), powah wrote: My image is 640 x 512 pixels X Y resolution are both 300 pixels/in. How to improve the image so that the OCR programs will recognize the text better? I try the Scale Image menu with different values of pixels X Y resolutions (e.g. 1920 x 1536 pixels X Y resolution are both 1200 pixels/in) but does not seem to improve the result. 640x512 seems pretty small for something to OCR out. What kind of image is it? Note that resizing will not have any positive effect on text recognition. -- Jernej Simončič http://deepthought.ena.si/ Contact address: jernej simoncic at isg si ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] extract text in a rectangle from a jpg file
--- On Mon, 3/2/09, PoWah Wong wong_po...@yahoo.ca wrote: From: PoWah Wong wong_po...@yahoo.ca Subject: extract text in a rectangle from a jpg file To: gimp-user@lists.XCF.Berkeley.EDU Received: Monday, March 2, 2009, 5:07 PM How to extract (get or copy) text in a rectangle from a jpg file? i.e. the jpg file has a rectangle which has some text (character strings). How to get those text to a text file? 640x512 seems pretty small for something to OCR out. What kind of image is it? Note that resizing will not have any positive effect on text recognition. Attached is the image. It has some text inside some rectangles. __ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.attachment: test.jpg___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] extract text in a rectangle from a jpg file
--- On Thu, 3/5/09, Chris Mohler cr33...@gmail.com wrote: From: Chris Mohler cr33...@gmail.com Subject: Re: [Gimp-user] extract text in a rectangle from a jpg file To: PoWah Wong wong_po...@yahoo.ca Cc: gimp-user@lists.xcf.berkeley.edu Received: Thursday, March 5, 2009, 7:14 AM On Thu, Mar 5, 2009 at 2:00 PM, PoWah Wong wong_po...@yahoo.ca wrote: Attached is the image. It has some text inside some rectangles. Wow - that's tough. No chance of getting the original at a higher res? I tried tesseract and was only able to get roughly half of it In GIMP - Grayscale - Levels - Scale about 200% - Levels - Indexed - save as TIFF. Chris No, that is the best res I get. __ Instant Messaging, free SMS, sharing photos and more... Try the new Yahoo! Canada Messenger at http://ca.beta.messenger.yahoo.com/ ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
