• Binary image convex hull

    Updated: 2011-09-30 08:00:12
    I've been intending to mention a new function bwconvhull that was introduced in the Image Processing Toolbox last spring in the R2011a release. Now that R2011b is out, I figure I better go ahead and do it! bwconvhull computes the "convex hull [...]

  • Digital image processing using MATLAB: reading image files

    Updated: 2011-09-27 08:00:27
    Today's post is part of an ongoing tutorial series on digital image processing using MATLAB. I'm covering topics in roughly the order used in the book Digital Image Processing Using MATLAB. Contents [...]

  • “Area opening” terminology question

    Updated: 2011-09-02 18:49:43
    An experienced user of our products recently told us we got it wrong when we named bwareaopen. This function removes foreground objects from a binary image that are smaller in area than a given threshold. The user said (paraphrased) that "bwareaopen isn't doing an opening at all, [...]

  • Digital image processing using MATLAB: digital image representation

    Updated: 2011-08-26 20:27:42
    Today I'm starting an regular, occasional series with tutorial material on digital image processing using MATLAB. I'm going to look at topics in roughly the order used in the book Digital Image Processing Using MATLAB, Gatesmark Publishing, 2009, [...]

  • Blog comments and e-mail

    Updated: 2011-08-17 08:00:17
    I just realized that it's been more than three years since I explained the way I handle comments on this blog. It's probably time for an update as many readers are new since then. I moderate comments on this blog. That is, when you add a comment to the post, it doesn't appear on the blog [...]

  • Dealing with “Really Big” Images: Block Processing

    Updated: 2011-08-16 01:10:01
    I'd like to welcome back guest blogger Brendan Hannigan, for the second in a series of three posts on working with very large images in MATLAB. Contents [...]

  • Dealing with “Really Big” Images: Viewing

    Updated: 2011-08-05 08:00:22
    I'd like to welcome guest blogger Brendan Hannigan, a MathWorks developer who worked on improving our set of large-image tools over the course of several releases. Contents [...]

  • Five years ago: March and April 2006

    Updated: 2011-08-02 08:00:43
    Much of the information I posted in this blog years ago is still useful today. Image processing theory hasn't been completely overturned since then, and I'm still talking about MATLAB after all. For the benefit of readers who have joined the party [...]

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