【SIGGRAPH Asia 2012专题*技术论文】漫画、纹理和涂鸦：数字重建的半色调彩色漫画

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【SIGGRAPH Asia 2012专题*技术论文】

漫画、纹理和涂鸦：数字重建的半色调彩色漫画





Screened Input





Accurate Recons***ction





Painterly Rendering
摘要：介绍了一种方法，自动转换的扫描彩色漫画和小说进入了一个新的高fidelity rescalable数字表示。因为清晰的黑白线稿和文字是最重要的结构和风格的元素在这一重要流派的彩色插图，我们的数字化进程是面向忠实重建这些元素。这是一个具有挑战性的任务，因为商业机进行半色调（筛选）近似连续的色调和颜色重叠网格点。虽然大量反haftoning（去网）方法的存在，他们通常模糊复杂的黑色艺术品。我们的做法是特别地设计fi去除网点彩色漫画，这通常表现的颜色使用筛选我的油墨，但打印黑色作品使用非屏蔽实心黑色墨水。分离后的扫描图像为三筛选网格，其中的每一个我的油墨，我们使用非线性优化fi一参数模型描述每一个网格，并同时恢复非屏蔽的黑色油墨层，然后是矢量。这一过程的结果是高质量的，紧凑，并rescalable数字表示原作品。
Abstract：We introduce a method for automated conversion of scanned color comic books and graphical novels into a new high-fidelity rescalable digital representation. Since crisp black line artwork and lettering are the most important s***ctural and stylistic elements in this important genre of color illustrations, our digitization process is geared towards faithful recons***ction of these elements. This is a challenging task, because commercial presses perform halftoning (screening) to approximate continuous tones and colors with overlapping grids of dots. Although a large number of inverse haftoning (descreening) methods exist, they typically blur the intricate black artwork. Our approach is specifically designed to descreen color comics, which typically reproduce color using screened CMY inks,but print the black artwork using non-screened solid black ink. After separating the scanned image into three screening grids, one for each of the CMY process inks, we use non-linear optimization to fit a parametric model describing each grid, and simultaneously recover the non-screened black ink layer, which is then vectorized.The result of this process is a high quality, compact, and rescalable digital representation of the original artwork.



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