Dr. Pengbo Bo Profile

Dr. Pengbo Bo

at Harbin Institute of Technology

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Proceedings Article | 4 March 2015 Paper

Crystallization mosaic effect generation by superpixels

Yuqi Xie, Pengbo Bo, Ye Yuan, Kuanquan Wang

Proceedings Volume 9443, 944334 (2015) https://doi.org/10.1117/12.2180106

KEYWORDS: Visualization, Crystals, Image processing, Image segmentation, Chemical vapor deposition, Image processing algorithms and systems, Feature extraction, Crystallography, Computer science, Photography

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Art effect generation from digital images using computational tools has been a hot research topic in recent years. We propose a new method for generating crystallization mosaic effects from color images. Two key problems in generating pleasant mosaic effect are studied: grouping pixels into mosaic tiles and arrangement of mosaic tiles adapting to image features. To give visually pleasant mosaic effect, we propose to create mosaic tiles by pixel clustering in feature space of color information, taking compactness of tiles into consideration as well. Moreover, we propose a method for processing feature boundaries in images which gives guidance for arranging mosaic tiles near image features. This method gives nearly uniform shape of mosaic tiles, adapting to feature lines in an esthetic way. The new approach considers both color distance and Euclidean distance of pixels, and thus is capable of giving mosaic tiles in a more pleasing manner. Some experiments are included to demonstrate the computational efficiency of the present method and its capability of generating visually pleasant mosaic tiles. Comparisons with existing approaches are also included to show the superiority of the new method.

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