http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/ 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 http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21425 Steve Tue, 27 Jan 2009 13:48:40 +0000 http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21425 Greg—Thanks for the suggestion. You might want to look at the nonuniform illumination demo in the Image Processing Toolbox. Click on the <a href="http://www.mathworks.com/products/image/demos.html" rel="nofollow">Demos</a> link under "Image Processing Toolbox" on the right side of this page. Greg—Thanks for the suggestion. You might want to look at the nonuniform illumination demo in the Image Processing Toolbox. Click on the Demos link under “Image Processing Toolbox” on the right side of this page.

]]> http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21423 Greg Tue, 27 Jan 2009 00:00:09 +0000 http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21423 Please consider "uneven illumination" as a topic for this blog. Consider removing the halo/spotlight effect when taking a flash photo of a printed page where the paper is brown or gray. I've done this with a point and shoot 6mp canon with exposure set to -2 (to minimize the flash washing out the text), ISO 100, grayscale. Upsampling and converting to black and white as a post processing step would be nice. This can be approached as fixing illumination or 'background subtraction'. Please consider “uneven illumination” as a topic for this blog. Consider removing the halo/spotlight effect when taking a flash photo of a printed page where the paper is brown or gray. I’ve done this with a point and shoot 6mp canon with exposure set to -2 (to minimize the flash washing out the text), ISO 100, grayscale. Upsampling and converting to black and white as a post processing step would be nice. This can be approached as fixing illumination or ‘background subtraction’.

]]> http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21415 Steve Thu, 22 Jan 2009 13:50:19 +0000 http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21415 Anton—Thanks for the suggestion. Anton—Thanks for the suggestion.

]]> http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21414 Anton Semechko Thu, 22 Jan 2009 13:44:57 +0000 http://blogs.mathworks.com/steve/2009/01/16/a-third-year-of-blogging/#comment-21414 Hi Steve, I have a suggestion for a topic for one of your blogs. Image registration but with more emphasis on nonlinear types of transformations. Hi Steve, I have a suggestion for a topic for one of your blogs. Image registration but with more emphasis on nonlinear types of transformations.

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