The Process
Impressionist mosaics are created by taking dozens of measurements of every tile in the artist's "palette". The measurements are obtained by digitally photographing each tile and separating it into a grid of sixteen equal sections and analyzing each section for color, contrast and marbling. The resultant data are stored in a database and operated on by proprietary software, which recommends placements for all the tiles. Since the tiles are generally square, the software considers all four possible rotations for each tile, which greatly increases the odds that a given tile will find a good 'home'. Each tile is equivalent to sixteen pixels in the final mosaic since its final location is a function of sixteen sections. While the software is an important component of this process, the artist must still rely on traditional hand-eye techniques to complete the image. Care must be taken to balance the color curves in the target image to that of the component tiles. For example, if the darkest color to be found on any of the component tiles is only a mid-tone gray, then any blacks in the target image's must be converted to mid-tone gray. This process would be repeated for the reds, greens, blues, and whites.
Read more about this topic: Impressionist Mosaics
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