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Steve Eddins


Last seen: 3 dagar ago

MathWorks

701 total contributions since 2006

MATLAB user since 1987. MathWorker since 1993. Amateur French horn player. MATLAB design and development, image processing algorithms.

Image processing blog: https://blogs.mathworks.com/steve/

Deep learning blog: https://blogs.mathworks.com/deep-learning

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Contributions in
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Published


Making Color Spectrum Plots – Part 3
Recently, I've been explaining how I made this plot, which is from DIPUM3E (Digital Image Processing Using MATLAB, 3rd...

ungefär en månad ago

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What is 0.01?
I was looking at these two numbers the other day:... read more >>

2 månader ago

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Making Color Spectrum Plots – Part 2
It was a while ago now, but on April 27 I started explaining how I made this plot, which is from DIPUM3E (Digital Image...

2 månader ago

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Submitted


MATLAB Color Tools
MATLAB Color Tools is an experimental collection of MATLAB functions related to color science computation and visualization.

2 månader ago | 13 downloads |

Published


Making Color Spectrum Plots – Part 1
The new edition of Digital Image Processing Using MATLAB (DIPUM3E) contains a number of MATLAB functions related to color,...

5 månader ago

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Geometric Transformation of Points – Getting Started
I like to think of geometric transformations of images (stretching, shrinking, rotating, etc.) by starting with the...

6 månader ago

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How to Display Color Swatches
When working on the "Color Image Processing" chapter of DIPUM3E, I found myself often wanting to display square blocks (or...

7 månader ago

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Digital Image Processing Using MATLAB, 3rd edition
The 3rd edition of Digital Image Processing Using MATLAB (DIPUM3E) has just been published, at long last. The new edition...

7 månader ago

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Published


Treble clefs, Unicode, SVG, strings, Bézier curves, kron, implicit expansion, and polyshape
Today I will show you how I plotted this treble clef symbol in MATLAB:... read more >>

8 månader ago

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How to Write Animated PNG (APNG) Files from MATLAB
Today, I'm writing about how to create animated PNG (APNG) files, such as this one:... read more >>

9 månader ago

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Submitted


Animated PNG (APNG) Writer
Create APNG (animated PNG) files

9 månader ago | 5 downloads |

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Published


How to Go a Little Crazy with Graphics Titles
The title function is the third most commonly-used function in my 13 years of writing this blog, after imshow and imread....

10 månader ago

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How to Overlay a Color on an Image Using a Mask
In my first year of writing this blog (2006!), I showed how to overlay a color onto an image based on a mask. This was the...

10 månader ago

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Submitted


Image overlay
Overlay a binary mask onto an image using a specified color

10 månader ago | 16 downloads |

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Submitted


Zone plate test image
MATLAB function to create a zone plate test image

10 månader ago | 5 downloads |

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Submitted


Penrose Rhombus Tiling
MATLAB functions for Penrose tiling

10 månader ago | 4 downloads |

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Submitted


Pixel Grid
MATLAB function that superimposes a grid of pixel edges on an image

10 månader ago | 3 downloads |

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Published


How to Read and Visualize a DICOM Volume
Earlier this year, I learned something about DICOM datasets that surprised me. I had downloaded a Head-Neck CT+PET study,...

10 månader ago

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Published


Guess the functions and get a t-shirt
Of all the MATLAB or MathWorks toolbox functions that have been mentioned in this blog since 2006, imshow and imread have...

11 månader ago

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How to display images with bilinear interpolation and antialiasing
Note: this blog post describes an image display feature that is new in R2019b. You can download this release from...

11 månader ago

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The tool builder’s gene (or how to get a job at MathWorks)
In my second year of grad school (1987-88), my thesis advisor asked me to develop some PC-based digital signal...

11 månader ago

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Published


Using the Color Threshold app again
Back in the summer I had another chance to use the Color Thresholder, a very nice app that's in the Image Processing...

11 månader ago

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Published


Documenting performance improvements
I recently noticed a change in the way we write some of our product release notes, and I wanted to mention it to you.......

12 månader ago

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Published


New Hubble portrait of Jupiter
I thought this was worth sharing. ... read more >>

ungefär ett år ago

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Using reshape to rearrange image color components
I recently saw some code that transformed the RGB pixel values of an image into a Px3 matrix, such that each row contained...

ungefär ett år ago

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Published


The curious case of ordfilt2 performance
For today's post, I'd like to welcome guest author Kushagr Gupta, a developer on the Image Processing Toolbox team....

ungefär ett år ago

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Answered
Any way to polish / improve the output produced by the Lab colour space segmentation.
I used the Color Thresholder app in the Image Processing Toolbox to give this a try. rgb = imread('b4.jpeg'); colorThresholder...

ungefär ett år ago | 1

| accepted

Published


Color correction with a parula quilt
My wife, Geri Eddins, has been making a lot of quilts lately. A few months ago, I printed out these 10 colors, showed them...

ungefär ett år ago

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Published


Fourier series and Hilbert curve animations
In a complete coincidence, two different coworkers today sent me links to two different works of 3Blue1Brown on YouTube. I...

ungefär ett år ago

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Published


pixelgrid
Some years ago, I blogged about how to overlay a pixel grid on an image, so that you could clearly see pixel boundaries on a...

mer än ett år ago

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