We demonstrate two novel editing procedures in the context of fantasy card art. Palette transfer applies a specified reference palette to a given card. For fantasy art, the desired change in palette can be very large, leading to huge changes in the "look" of the art. We demonstrate that a pipeline of vector quantization; matching; and "vector dequantization" (using a diffusion model) produces successful extreme palette transfers. Segment control allows an artist to move one or more image segments, and to optionally specify the desired color of the result. The combination of these two types of edit yields valuable workflows, including: move a segment, then recolor; recolor, then force some segments to take a prescribed color. We demonstrate our methods on the challenging Yu-Gi-Oh card art dataset.
翻译:我们展示了两种应用于奇幻卡牌艺术领域的新型编辑方法。调色板迁移能将指定的参考色卡应用于目标卡牌。对于奇幻艺术而言,所需的调色板变化幅度可能极为剧烈,导致艺术作品"视觉风格"产生显著改变。我们证明通过向量量化、匹配及(利用扩散模型实现的)"向量反量化"流程,能够成功实现极端调色板迁移。分段控制技术允许艺术家移动一个或多个图像区域,并可选择性指定结果的目标颜色。这两类编辑方式的组合形成了有价值的创作流程,包括:先移动区域再重新着色;或先重新着色再强制某些区域采用指定颜色。我们在具有挑战性的《游戏王》卡牌艺术数据集上验证了该方法。