Steve on Image Processing

New image batch processor app in R2015a 6

Posted by Steve Eddins,

imagebatchprocessor_spec_fcn

Nine years ago I wrote a blog post showing how to do batch processing of image files. That is, I showed how to use MATLAB to perform the same operation on a bunch of image files in a particular folder.... read more >>

Image region filling – an updated design

Posted by Steve Eddins,

roifill-mask-2

About a year ago, I wrote a blog post criticizing one of my functional designs from the 1990s, roifill. Now I have an update based on the R2015a release of Image Processing Toolbox.... read more >>

Gray-scale dilation equation 4

Posted by Steve Eddins,

A question came into tech support a month or so ago regarding the documentation for imdilate. The question concerned an apparent discrepancy in the equations for binary and grayscale dilation. Here's the formula given for binary dilation:... read more >>

Displaying a color gamut surface 8

Posted by Steve Eddins,

srgb_gamut_surface_08

Today I'll show you one way to visualize the sRGB color gamut in L*a*b* space with assistance with a couple of new functions introduced last fall in the R2014b release. (I originally planned to post this a few months ago, but I got sidetracked writing about colormaps.)... read more >>

New online documentation system for R2015a 8

Posted by Steve Eddins,

Earlier this month we shipped R2015a, the first of our two regularly scheduled annual releases. Typically, when there's a new release, I spend some time talking about features that interest me. The feature I want to mention today, though, is a little unusual because it benefits users who haven't even... read more >>

MATLAB, Landsat 8, and AWS Public Data Sets

Posted by Steve Eddins,

A few weeks ago, a fellow developer (Kelly Luetkemeyer) pulled me into his office to show me something he had been working on. It was very cool! Even better, it's now available for you to try. I'd like to introduce guest blogger Bruce Tannenbaum, product marketing manager for image processing... read more >>

About that dress … 14

Posted by Steve Eddins,

dress_small

This afternoon my wife looked at me with an expression indicating she was convinced that I had finally gone completely and irrevocably crazy.... read more >>

Divergent colormaps 4

Posted by Steve Eddins,

I promised earlier to post about divergent colormaps. A divergent colormap is usually constructed by concatenating two colormaps together that have different color schemes.... read more >>

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