| 摘要 |
A target mosaic image is created by replacing each pixel in a smaller source image with an appropriately colorized tile image. Tiles may repeat, be non-square and/or non-rectangular, and be multi-sized. For artistic effect, selected areas of the target image may be excluded from tiling on the basis of user-supplied criteria. This methodology is in marked contrast to all other known methods for creating mosaic images (including the well-known method of Robert Silvers [U.S. Pat. No. 6,137,498], wherein the best match to the attributes of target regions/subregions are sought from a library of tile image candidates). Claims are also made with regard to several methodologies which support the mosaic image creation. These claims include a methodology for positioning tiles which minimizes eye-detectable patterns of repeat images, a process for tile multi-sizing such that inappropriate sizes are not positioned to the detriment of the output image, a method for colorizing tiles, a method for automatically adjusting image lightness and contrast, an image resizing methodology, and a pattern-recognition algorithm for the automatic creation of tile images.
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