A simple non-photorealistic rendering (NPR) technique is presented for creating pointillistic and mosaic images with color arrangement resembling the impressionist paintings. An input image is partitioned into rectangular tiles which are grouped into blocks. The color of tiles is changed to ones maximally far apart from each other while their local average approximates the color of the input image. The resultant mosaic image with the tile size of only one pixel is used for creating pointillistic images like to ones by George Seurat. Their blending with the original image produces a mosaic image resembling that by Chuck Close. Some modifications are also incorporated into the color transformation to improve the reproducibility of mosaic images blended with a collection of tiny images.
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- An NPR Technique for Pointillistic and Mosaic Images with Impressionist Color Arrangement
- Springer Berlin Heidelberg
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