Mixed Tile Sizes
|Techniques - or, how do they do that?
The art of creating mosaics is a multi-step process. First the artist works with the original image to enhance it and enlarge it as required. This involves at least three graphics programs designed for just such a process.
Fitting the "tiles"
Next, the image is fed into a special program that chops the original image into color coded vector shapes, and runs through a library of "tiles" finding those that match most closely in tone, shape and depth. Then these are arranged into one output image, and the result is written as a new file ready for printing.
The libraries are arranged by subject matter. If you want automobile tiles, then that library is selected. But if you want automobiles, flowers and fish, and some "must have" images of your own, then all are fed into the programs, selected and written out in the correct pattern.
Fine tuning the output
Finally, the output mosaic image is passed through several iterations of digital enhancing. The image is sharpened and the colors are refined to match the original image more closely.
Fizzy mosaic sample, with a 3d wrapped mosaic: