# The Eight Queens Problem – Generating All Solutions

Posted by Steve Eddins,

On April 20, I wrote about an algorithm for solving the Eight Queens Problem. In this problem, the task is to place eight queens on a chessboard so that none of the queens is attacking any other queen. Here is one solution.... read more >>

# The Future of String Arrays in MATLAB

Posted by Steve Eddins,

At MathWorks, we almost never talk in detail about product features before they are released. That's why this week's Art of MATLAB blog caught my eye. Guest blogger Dave Bergstein describes in some detail how we expect support for string arrays to evolve in the future. If you do a lot of data analysis or text processing in MATLAB, it is worth your while to take a look at Dave's post.... read more >>

# The Eight Queens Problem

Posted by Steve Eddins,

Today I want to tackle a classic algorithm puzzle known as the Eight Queens Problem. In this problem, your task is to arrange eight queens on a chessboard so that none of the queens is attacking any of the others. Here is one solution.... read more >>

# Variation on Connected Objects – Using Graphs

Posted by Steve Eddins,

Reader Uri Pe'er found an old post from 2011 about shortest paths in binary images, and he asked this follow-up question (paraphrased):... read more >>

# Variations on Connected Objects – Using imfill

Posted by Steve Eddins,

Reader Uri Pe'er found an old post from 2011 about shortest paths in binary images, and he asked this follow-up question (paraphrased):... read more >>

# Logical indexing3

Posted by Steve Eddins,

One of my favorite aspects of MATLAB for image processing is how I can use a binary image to index directly into a grayscale image. The technique is called logical indexing, and I'm going to show you how it works today.... read more >>

# Gaussian filtering with imgaussfilt1

Posted by Steve Eddins,

With the R2015a release a couple of years ago, the Image Processing Toolbox added the function imgaussfilt. This function performs 2-D Gaussian filtering on images. It features a heuristic that automatically switches between a spatial-domain implementation and a frequency-domain implementation.... read more >>

# Aliasing and image resizing – part 34

Posted by Steve Eddins,

Today I'll try to wrap up my discussion about how aliasing affects image resizing and about how the imresize function tries to prevent it. (This is called antialiasing.) Let me show you where we are going. Here is the zone plate image I showed last time.... read more >>

# Aliasing and image resizing – part 27

Posted by Steve Eddins,

In my 03-Jan-2017 post, I introduced my new topic: aliasing, especially as it relates to resizing images. Today I will get more specific about what aliasing actually is.... read more >>

# Aliasing and image resizing – part 1

Posted by Steve Eddins,

Happy New Year!... read more >>