Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB

Posts 21 - 29 of 29

Results for: 2015

Region filling and Laplace’s equation 4

Today I want to show you how to use a linear system of 90,300 equations and 90,300 unknowns to get rid of a leaf.Earlier this month I told you how the function roifill was recently renamed to... read more >>

Image region filling – an updated design

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.Let me show you an... read more >>

Gray-scale dilation equation 4

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... read more >>

Displaying a color gamut surface 8

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... read more >>

New online documentation system for R2015a 8

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... read more >>

MATLAB, Landsat 8, and AWS Public Data Sets

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... read more >>

About that dress … 14

This afternoon my wife looked at me with an expression indicating she was convinced that I had finally gone completely and irrevocably crazy.I think it was because I was carrying from room to room a... read more >>

Fourier series animation using phasor addition 9

I just saw a great animation illustrating the Fourier series decomposition of a square wave. Check it out. The video includes two different animations, so be sure to watch it all the way through to... read more >>

Divergent colormaps 4

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

Posts 21 - 29 of 29