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For a long time, the checkboard image has been the most popularly used for testing the filtering and antialiasing techniques in image warping/texture mapping. While people are still struggling with the checkboard image, it is by no means the most challenging one. You can be assured that the "Star" images -- the images with radial lines emitting from the images' centers -- will challenge almost all the filtering techniques by far exist. Even to generate these images is very challenging.
Here I have generated a group of Star images for people who have the same interest as me and are willing to take the challenge. Try to tilt the images just a bit and see what immediately disturbes you --- an artifact called aliasing. Even if your technique can handle a static image well, now try to continuously rotate the image, artifacts show up instantly, which is called temporary aliasing.
The images shown here are only a few that I have randomly generated. If you need any variant of the images, you are welcome to contact me at baoquan 'at' cs.umn.edu.
Here is a code that I wrote for demonstrating texture mapping using different filtering methods: bilinear interpolation (default, or press 'e'), mim-mapping (press '9'), and footprint-assembly (press '3). The code runs on unix (SUN). It accepts 'ppm' and 'sgi' formats. Here is the infamous 'checkboard' benchmark image. Other binary codes are available upon request.
Publications
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