# Steve on Image Processing with MATLABImage processing concepts, algorithms, and MATLAB

Posts 11 - 20 of 581

# Local maxima, regional maxima, and the function imregionalmax

A recent algorithm discussion on the Image Processing Toolbox development team reminded me of something I originally wanted to do a long time ago: explain imregionalmax and some related operations.... read more >>

# Use less meshgrid and repmat2

The functions meshgrid and repmat have a long and rich history in MATLAB. Today, I'll try to convince you to use them less.meshgridThe function meshgrid is typically used to take a vector of... read more >>

# Use imbinarize to Threshold Gray-Scale Images

Today, I want to convince you to use imbinarize instead of im2bw.Background: I recently saw some data suggesting that many Image Processing Toolbox users are still using im2bw, an old function that... read more >>

# NaN Sightings2

Some of us at MathWorks like to share our "NaN sightings." Here is an example to show what I mean. This is a screenshot of the tuner/metronome app that I use when practicing music. One day, I was a... read more >>

# How to Use a Custom Interpolation Kernel with imresize2

Recently, I was talking with MathWorks writer Jessica Bernier about the reference page for the imresize function. Jessica pointed out that we don't have an example that shows how to use your own... read more >>

# How to Run Blog Post Code in Your Browser

I have published more than 560 blog posts here since 2006, and I estimate that about 98% of them started out as MATLAB scripts.Recently, I've started writing my blog posts as live scripts. Live... read more >>

# Plotting a* and b* colors10

Today's blog post comes from planning one topic, but then taking a sharp left turn and doing something else completely. I was thinking about writing something related to meshgrid, and so I was... read more >>

# FFT Spectral Leakage10

A MATLAB user recently contacted MathWorks tech support to ask why the output of fft did not meet their expectations, and tech support asked the MATLAB Math Team for assistance. Fellow Georgia Tech... read more >>

# How imshowpair and imfuse work1

In this post, I'll explore how imshowpair and imfuse work.Reason: I was curious.Last month, I wrote about registering several hand-held photographs together. In that post, I used imshowpair several... read more >>

# Registering Hand-Held Pictures

The typical modern French* horn, pictured below, has about 23 total feet of tubing. At the beginning and the end, the tubing is conical. In the middle, the tubing is cylindrical.Depending on which... read more >>

Posts 11 - 20 of 581

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