Steve on Image Processing and MATLAB

Concepts, algorithms & MATLAB

Results for: 2015

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,

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 >>

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 >>