Steve on Image Processing

February 25th, 2008

Handling comments and e-mail

I would like to announce new procedures for comments on this blog, as well as for associated e-mail traffic.

First, post commenting is now in "moderate" mode, meaning that new comments will not appear until I have had a chance to review them. My goal is to review the incoming comments at least once per business day. As a general rule, I welcome comments that are at least somewhat relevant to the topic of the post. I also welcome general comments about this blog—especially suggestions for new topics!

Second, I have removed my e-mail address link from the posts. The volume of e-mail traffic in response to my blog posts and comp.soft-sys.matlab posts was beginning to interfere with my "day job" as a software development manager at MathWorks, so I will no longer be able to respond to such e-mail.

The conversations that have happened through relevant blog comments and responses have been very valuable, and I encourage you to continue sharing your thoughts here.

2 Responses to “Handling comments and e-mail”

  1. Michel Kocher replied on :

    Hi Steve,
    Thanks for the last publication on “neighbor indexing”. To illustrate it, you choose the reconstruction by dilation algorithm, also called flood fill. Could you generalize this algorithm, by using a hierarchical queue instead of a simple queue, to grey tone images ?

  2. Steve replied on :

    Michel—Yes, I imagine so. I’ve programmed such things in C and C++, but not MATLAB. In C++ I’ve used a priority queue, which doesn’t depend on having a small number of finite levels. That’s nice for working with floating-point data.

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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.

  • Sana: hi steve, could you explain to me how i would be able to use the dir function, to do a loop through a directory...
  • Nishtha: Sir, I have preprocessed the image in following steps: [1] adaptive histogram equalization [2] thresholding...
  • Kristof: I also strongly support the idea. I have just recently bumped into the problem that im2single was not...
  • Steve: David—I’ m glad you found it useful!
  • David Lalejini: I found your example very useful for finding connected nodes in a large set of input pairs. I start...
  • tommy: Dear Steve, I have a question,please if you are kind to help me regarding the accumulator array dimensions of...
  • Steve: Abc—I don’t know how to distinguish the faces. You might try posting your question in the MATLAB...
  • Manju: well if we have a few ovals within each other like in a cell how do we measure the distance from the center...
  • Steve: Manju—What do you mean? How is each region defined?
  • Manju: if we have 2-3 regions within each other how do we measure the regions of each one?

These postings are the author's and don't necessarily represent the opinions of The MathWorks.