Modern computers are getting more and more complex, and so do the tasks we can execute with them. On the other hand, we, the users should simply concentrate on the core of our tasks: so let the computer do most … Continue reading
Remeshing is a key technique to improve the quality of a mesh. It is important for industrial applications, such as numerical simulation, geometric modeling (like shape editing, animation, morphing). In surface remeshing, the goal is to reduce the complexity (mesh … Continue reading
In automated image processing, we often want to compare two images for certain features, e.g. lines, contours, color matching, illumination distributions. Such algorithms require input images having specific characteristics: contours may be clearly visible. However, images from scanned devices (satellites) … Continue reading
When subsampling images with rectangular-like or stripe-like patterns, moiree effects can occur. To simulate such effects, zone plates can be subsampled, i.e. reduzed in their size. Subsampling with a factor of 2 corresponds to choosing every second pixel per column … Continue reading
When taking photographs from cities, urban areas, mountains, countries or other regions using satellites, from distant galaxies or when qualifying commercial products using laser scanners, resulting grayscale images usually have to be colorized for a better understanding of the image’s … Continue reading
In image processing, thresholding is used to split an image into smaller segments, or junks, using at least one color or grayscale value to define their boundary. A possible threshold might be 40% gray in a grayscale image: all pixels … Continue reading
This article is part 5 of “Comparison of WebGL Framework APIs“. TDL Quite a low-level API for WebGL applications, written with (high) performance in mind. Official examples are really promising, being a head in front of other comparable APIs. A … Continue reading
This article is part 4 of “Comparison of WebGL Framework APIs“. PhiloGL It’s official homepage provides good examples and tutorials, while being in active development. Like CubicVR3D, it follows the jQuery coding and naming principle of mapped arrays as method … Continue reading
This article is the third part of “Comparison of WebGL Framework APIs“. KUDA Another API in active development. However, the name “kuda” sounds like the proprietary “cuda” by Nvidia for GPGPU. In case this API manages to evolve as a … Continue reading
This article is the second part of “Comparison of WebGL Framework APIs“. Copperlicht Although a commercial solution, this API is free to use. The homepage provides a good documentation and interesting examples. Copperlicht Homepage. The animation system uses “Milkshape”, “Microsoft DirectX” … Continue reading