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Month: October 2016

Tornado – DOS video game on Raspberry Pi

Tornado – DOS video game on Raspberry Pi

Back in 1993, while in college, I purchased an Intel 486 computer. The intent was to save me the hassles of the computer lab. It was extremely convenient to be able to do my work on my schedule. As a consequence, I tinkered with the PC in my spare time. I had created the DOS 6.x / Windows 3.x install disk sets, at the suggestion of the sales agent. I eventually needed them. Breaking and rebuilding was a clumsy cycle…

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Image Enhancements

Image Enhancements

Introduction A couple of years ago I wrote about imaging enhancements using ImageMagick. However, I didn’t really cover it in too much detail. One of those methods was the normalization process. This method basically analyzes the histogram of an image and adjusts the black and white levels. The results are a clearer picture with less shadow washout and crisper colors. This process has some limitations. In this post I’ll cover some additional methods for image enhancements. I’ll continue to work…

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3D Rendering from Facebook Videos

3D Rendering from Facebook Videos

First, source your video from facebook.  I used a video shot from a motorbike of a structure on side of the road.  It was from a post of a road trip in Indonesia by a fellow with my same name.  The scene reminded me of my travels in the Southwest Pacific when I was younger.  It looked like good material as a source for model rendering. For more information on the following steps, see this link for the details.  I…

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Linear Panoramas with Hugin

Linear Panoramas with Hugin

We have covered panorama creation using Hugin in previous posts.  The method used was taking pictures from a singular point and stitching the images together to create an immersive experience.  In this post we will use Hugin to create panoramic scenes, however the images will be sourced from a moving video camera. There are a few challenges from our source video.  First, the camera used has a wide angle lens.  The images will be distorted by the lens and we…

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Computerized Tomography – Introduction and History

Computerized Tomography – Introduction and History

Images created from present day xray scanners are the result of computer processing. The methods used in radiology have evolved since its discovery. It is safe to assume that computers will continue to be used to advance this field of understanding. Here you will be introduced to this technology. Together, we will cover the history of radiographic imaging and how it has arrived to were it is today. I will also cover one of the techniques used in computerized tomography…

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