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首页> 外文期刊>Computer Graphics Forum: Journal of the European Association for Computer Graphics >Exemplar-Based Portrait Photograph Enhancement as Informed by Portrait Paintings
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Exemplar-Based Portrait Photograph Enhancement as Informed by Portrait Paintings

机译：肖像画为基础的基于肖像的肖像照片增强

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摘要

This paper proposes an approach to enhance the regional contrasts in snap-shot style portrait photographs by using pre-modern portrait paintings as aesthetic exemplars. The example portrait painting is selected based on a comparison of the existing contrast properties of the painting with those of the photograph. The contrast organization in the selected example painting is transferred to the photograph by mapping the inter- and intra-regional contrasts of the regions, such as the face and skin areas of the foreground figure, the non-face/skin part of the foreground and the background region. A piecewise non-linear transformation curve is used to achieve the contrast mapping. Finally, the transition boundary between regions is smoothed to achieve the final results. The experimental results and user study demonstrate that, by using this proposed approach, the visual appeal of the portrait photographs is effectively improved, and the face and the figure become more salient.
机译：本文提出了一种通过使用前现代肖像画作为审美榜样来增强快照风格肖像照片中区域对比度的方法。基于肖像画的现有对比度特性与照片的对比度特性的比较来选择示例肖像画。通过映射区域的区域间和区域内对比度（例如前景人物的面部和皮肤区域，前景的非面部/皮肤部分），将所选示例绘画中的对比度组织转移到照片上。背景区域。使用分段非线性变换曲线来实现对比度映射。最后，对区域之间的过渡边界进行平滑处理以获得最终结果。实验结果和用户研究表明，通过使用该方法，人像照片的视觉吸引力得到了有效改善，面部和人物形象也更加突出。

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