• In my mailbox this week: MCALab, astronomy, dmperm, and Sudoku

    Updated: 2010-01-08 15:35:13
    Some interesting IEEE articles arrived in my mailbox this week. Computing in Science and Engineering has "MCALab: Reproducible Research in Signal and Image Decomposition and Inpainting," by Fadili, Starck, Elad, and Donoho. MCA means morphological component analysis, which is a new term for me. MCALab is an open-source library of MATLAB routines for signal and [...]

  • Image Enhancement: A Medley

    Updated: 2009-12-18 19:30:35
    Can I post two silly-season items in one day? Hey, it's my blog, so why not! One of my posts that received the most comments was the one about image processing in the movies. Since so many readers commented on that post, I thought you all might enjoy this video medley of image enhancement in the movies [...]

  • A very different take on the Fourier transform

    Updated: 2009-12-18 07:00:33
    This is my silly season entry (from xkcd):

  • Example of Fourier terminology confusion

    Updated: 2009-12-07 17:50:38
    This exchange of comments between Cris and me (see comments 11-16) is a good example of the kind of terminology confusion that surrounds Fourier transforms. Cris and I both have a background in signal processing theory, but we were using the term "DFT" to refer to two different transform types, and it took a little [...]

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