Generating Color Scribble Images using Multi-layered Monochromatic Strokes Dithering

dc.contributor.authorLo, Yi-Hsiangen_US
dc.contributor.authorLee, Ruen-Roneen_US
dc.contributor.authorChu, Hung-Kuoen_US
dc.contributor.editorAlliez, Pierre and Pellacini, Fabioen_US
dc.date.accessioned2019-05-05T17:40:41Z
dc.date.available2019-05-05T17:40:41Z
dc.date.issued2019
dc.description.abstractColor scribbling is a unique form of illustration where artists use compact, overlapping, and monochromatic scribbles at microscopic scale to create astonishing colorful images at macroscopic scale. The creation process is skill-demanded and time-consuming, which typically involves drawing monochromatic scribbles layer-by-layer to depict true-color subjects using a limited color palette delicately. In this work, we present a novel computational framework for automatic generation of color scribble images from arbitrary raster images. The core contribution of our work lies in a novel color dithering model tailormade for synthesizing a smooth color appearance using multiple layers of overlapped monochromatic strokes. Specifically, our system reconstructs the appearance of the input image by (i) generating layers of monochromatic scribbles based on a limited color palette derived from input image, and (ii) optimizing the drawing sequence among layers to minimize the visual color dissimilarity between dithered image and original image as well as the color banding artifacts. We demonstrate the effectiveness and robustness of our algorithm with various convincing results synthesized from a variety of input images with different stroke patterns. The experimental study further shows that our approach faithfully captures the scribble style and the color presentation at respectively microscopic and macroscopic scales, which is otherwise difficult for state-of-the-art methods.en_US
dc.description.number2
dc.description.sectionheadersBetter Patterns
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume38
dc.identifier.doi10.1111/cgf.13636
dc.identifier.issn1467-8659
dc.identifier.pages265-276
dc.identifier.urihttps://doi.org/10.1111/cgf.13636
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13636
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectComputing methodologies
dc.subjectNon
dc.subjectphotorealistic rendering
dc.titleGenerating Color Scribble Images using Multi-layered Monochromatic Strokes Ditheringen_US
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