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Home Posts tagged "Image Processing"

Tag: Image Processing

Project: Photo Mosaic Renderer and Viewer

Mosaic demo Usage: First, click on a button to load that scene. On a PC: translate= wasd, zoom in = e, zoom out = f, reset zoom = z, zoom in = left MB (hold),…

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Matz August 13, 2021 - 12:00 am September 18, 2021Art, MATLAB Image Processing, mosaic, movies 0

Enhancing Image Quality of Thermal Images (Seek)

As you may know, I recently bought the ”Seek Thermal Camera” for my smartphone. It works great, but the images I take are blurry and quite noisy. In this post I will try to sharpen…

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Matz September 29, 2015 - 1:16 pm September 29, 2015MATLAB convolution, FFT, Image Processing, matlab, noise 0

Enhancing Spy Camera Photos of Documents

This post is about how you can processed a photo (spy photo) of a document using rectification and moving average thresholding in Matlab. The Problem We have all been in the situation where we wish…

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Matz August 23, 2015 - 11:38 pm August 24, 2015MATLAB exposure, filter, Image Processing 0

Smoothing a Halftone Photo using FFT

In this post I will show how to smooth a halftone image using the fast Fourier Transform (FFT). You can try this out yourself by downloading my Matlab code on the bottom of the article.…

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Matz August 8, 2015 - 11:13 pm December 14, 2022MATLAB FFT, filter, Image Processing 2

Reducing VHS Salt-and-Pepper Noise

As I was watching a magician’s lecture from 1985 of the magician Tommy Wonder (stage name of Jacobus Maria Bemelman), I immediately noticed the distracting noise in the video. It looked like salt-and-pepper noise, but…

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Matz August 5, 2015 - 11:26 pm September 28, 2015MATLAB Image Processing, noise 0

How the FBI Found Swirl Face Using Photoshop

In October 8, 2007, Interpol released a photo of a man suspected of paedophilia with boys, see Interpol link. The investigation was named ‘Operation Vico’. It was a unique case, because the person on the…

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Matz July 26, 2015 - 9:14 pm October 17, 2021Photoshop filter, forensics, Image Processing 4

Deconstructing the Gavle Goat

In Sweden we have this weird Yule goat made from straw that is erected each year just before 1st of December for people to look at. In the late nineties they even put up a…

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Matz May 10, 2015 - 2:58 am October 14, 2015Programming computer vision, goat, Image Processing, traffic 0

Realistic Fire Simulation using Cellular Automata

In this post I will explain how you can create an interesting fire effect using simple “game of life”-like rules and some post processing and why it is not a good idea to do this…

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Matz May 13, 2014 - 1:33 pm August 19, 2014MATLAB Image Processing, matlab, simulation, visualization 2

Hybrid images: Adolf Chaplin and Miley Einstein

I recently attended a course in Image Processing and in one lecture my teacher showed me an image of Marilyn Monroe depicted in a newspaper. My teacher then took the newspaper and walked towards the…

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Matz January 22, 2014 - 12:50 am April 23, 2014Photoshop Chaplin, Einstein, filter, Hitler, Image Processing, Miley Cyrus 0
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