Comments on: Cleaning up scanned text http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/ Steve Eddins manages the Image & Geospatial development team at The MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB. Sat, 11 Feb 2012 18:27:50 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Steve http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-24451 Steve Fri, 02 Sep 2011 12:05:25 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-24451 R—I don't know. R—I don’t know.

]]> By: R Smit http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-24450 R Smit Fri, 02 Sep 2011 11:46:33 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-24450 Wanted to know if anywork was being done on actually cleaning up the text in a scan. I.e. when the type face is recognized (from say a database) then redaw (totally enhance) the original scan. Or simply refine the rules for what constitutes a "type face" and use this to clean-up the graphic of scanned text. Wanted to know if anywork was being done on actually cleaning up the text in a scan. I.e. when the type face is recognized (from say a database) then redaw (totally enhance) the original scan. Or simply refine the rules for what constitutes a “type face” and use this to clean-up the graphic of scanned text.

]]> By: Steve http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-22064 Steve Mon, 17 Aug 2009 18:31:12 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-22064 Alosha—I don't know what that means. Can you clarify? Alosha—I don’t know what that means. Can you clarify?

]]> By: alosha http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-22050 alosha Mon, 17 Aug 2009 16:45:06 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-22050 hi steve, could please let me know can i map some text data to the image .. thank you very much hi steve,
could please let me know can i map some text data to the image .. thank you very much

]]> By: Steve http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-21438 Steve Fri, 30 Jan 2009 14:26:08 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-21438 Etamar—I don't have anything to add to my original answer. The operations could be readily implemented on a fixed-point processor, but I don't know how long the operation might take. Did you really mean "several microseconds"? I assume you're not really hoping to process hundreds of thousands of images per second. :-) Etamar—I don’t have anything to add to my original answer. The operations could be readily implemented on a fixed-point processor, but I don’t know how long the operation might take. Did you really mean “several microseconds”? I assume you’re not really hoping to process hundreds of thousands of images per second. :-)

]]> By: Etamar Laron http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-21437 Etamar Laron Fri, 30 Jan 2009 14:21:55 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-21437 Hi guys, To reopen my old question - do you think this algorithm can be performed in a reasonable (several microseconds) using an inexpensive hardware? In inexpensive I mean $1 or less 8051 or similar......... not a laptop from three years ago. Appreciate your thoughts! Hi guys,

To reopen my old question – do you think this algorithm can be performed in a reasonable (several microseconds) using an inexpensive hardware?

In inexpensive I mean $1 or less 8051 or similar……… not a laptop from three years ago.

Appreciate your thoughts!

]]> By: DP http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20757 DP Sat, 31 May 2008 14:42:02 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20757 Thank U. Thank U.

]]> By: Bob http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20754 Bob Fri, 30 May 2008 19:11:17 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20754 DP, you might also check out the follow File Exchange submission for ideas. http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=4879 Cheers Bob DP, you might also check out the follow File Exchange submission for ideas.
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=4879

Cheers
Bob

]]> By: Steve http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20753 Steve Fri, 30 May 2008 17:36:36 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20753 DP—You could try <tt>montage</tt>. You should also look at the 3-D visualization material in the MATLAB documentation. DP—You could try montage. You should also look at the 3-D visualization material in the MATLAB documentation.

]]> By: Steve http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20752 Steve Fri, 30 May 2008 17:23:41 +0000 http://blogs.mathworks.com/steve/2007/12/07/cleaning-up-scanned-text/#comment-20752 Para—Complement the image before calling <tt>bwmorph</tt>. Use <tt>~</tt> or <tt>imcomplement</tt>. Para—Complement the image before calling bwmorph. Use ~ or imcomplement.

]]>