Answered
How is image downsized when "Image is too big to fit on screen"?
Nearest-neighbor interpolation.

1 year ago | 1

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What is the Shape of a Pixel?
What is the shape of a pixel? At various times, I have a pixel as a square (often), a point (sometimes), or a rectangle...

1 year ago

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Answered
immse same size error
Compare the output of size(X) and size(C) to double-check your assumption that X and C are the same size.

1 year ago | 0

Answered
Resize images in multiple directories
Consider using the <https://www.mathworks.com/help/images/batch-processing-using-the-image-batch-processor-app.html Image Batch ...

1 year ago | 1

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Minimum Feret Diameter
Last time (if you can remember that long ago), I talked about how to find the maximum Feret diameter of a shape. The Feret...

1 year ago

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Defining Your Own Network Layer
Note: Post updated 27-Sep-2018 to correct a typo in the implementation of the backward function. One of the new Neural...

1 year ago

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Feret Diameters and Antipodal Vertices
Last time, I wrote about finding the maximum Feret diameter for an object in a binary image, ending up with this figure:......

2 years ago

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Deep Learning with MATLAB R2017b
The R2017b release of MathWorks products shipped just two weeks ago, and it includes many new capabilities for deep...

2 years ago

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Feret Diameter: Introduction
This is the first of a few blog posts about object measurements based on a concept called the Feret diameter, sometimes...

2 years ago

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New Deep Learning Blog on MATLAB Central
I'd like to invite everyone to check out the new Deep Learning blog that just launched today on MATLAB Central. ... read...

2 years ago

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Jumping into the Deep End
Hello, and welcome to the new MATLAB Central blog on deep learning! In my 24th year of MATLAB and toolbox development and...

2 years ago

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Gray-scale pixel values in image regions
Before I dive into today's topic, I want to invite you to come back to the MATLAB Central Blogs page in a couple of weeks....

2 years ago

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Colormap Test Image
Today I want to tell you how and why I made these images:... read more &gt;&gt;

2 years ago

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Submitted


Colormap Test Image
Test image for evaluating perceptual effectiveness of a colormap for visualizing sequential data

2 years ago | 3 downloads |

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Customizing REGIONPROPS With Your Own Measurements
I saw a presentation last month that mentioned a user request to have the ability to customize regionprops. That is, a user...

2 years ago

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Frequency Samples for the Output of FFT2
A MATLAB user recently contacted tech support with a question about the output of fft2. The user had a function, q(x,y),...

2 years ago

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Chessboards, Implicit Expansion, REPELEM, and Unicode Chess Queens
A few weeks ago, I wrote about a solver algorithm for the Eight Queens Problem. The post included diagrams like this one.......

2 years ago

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The Eight Queens Problem – Generating All Solutions
On April 20, I wrote about an algorithm for solving the Eight Queens Problem. In this problem, the task is to place eight...

2 years ago

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The Future of String Arrays in MATLAB
At MathWorks, we almost never talk in detail about product features before they are released. That's why this week's Art of...

2 years ago

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The Eight Queens Problem
Today I want to tackle a classic algorithm puzzle known as the Eight Queens Problem. In this problem, your task is to...

2 years ago

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Variation on Connected Objects – Using Graphs
Reader Uri Pe'er found an old post from 2011 about shortest paths in binary images, and he asked this follow-up question...

2 years ago

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Variations on Connected Objects – Using imfill
Reader Uri Pe'er found an old post from 2011 about shortest paths in binary images, and he asked this follow-up question...

2 years ago

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Logical indexing
One of my favorite aspects of MATLAB for image processing is how I can use a binary image to index directly into a grayscale...

2 years ago

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Gaussian filtering with imgaussfilt
With the R2015a release a couple of years ago, the Image Processing Toolbox added the function imgaussfilt. This function...

2 years ago

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Aliasing and image resizing – part 3
Today I'll try to wrap up my discussion about how aliasing affects image resizing and about how the imresize function tries...

2 years ago

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Aliasing and image resizing – part 2
In my 03-Jan-2017 post, I introduced my new topic: aliasing, especially as it relates to resizing images. Today I will get...

2 years ago

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Aliasing and image resizing – part 1
Happy New Year!... read more &gt;&gt;

2 years ago

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MATLAB arithmetic expands in R2016b
Earlier this summer, I was writing some color-space conversion code. At one point in the code, I had a Px3 matrix called...

3 years ago

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Filling holes in outline text
Intrepid MathWorks application engineer Brett Shoelson recently got a user question that caught my attention. Consider an...

3 years ago

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Getting the math right
Because I work regularly with developers on the MATLAB Math team, I see the questions that come to them from tech support....

3 years ago

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