面向多源图像的色彩迁移方法

色彩迁移是一种改变图像颜色的有效方法,传统的方法大多采用单幅源图像,因此在实际应用中局限性较大,为此,提出一种面向多源图像的色彩迁移方法。该方法通过亮度重映射、分类筛选和确定最佳匹配样本集等操作,从多幅源图像中筛选出与各目标区域最匹配的参考色彩区域,并针对彩色图像和灰度图像,分别给出不同的迁移合成方法,最终实现对每个目标区域的色彩迁移。利用色彩度作为评价指标,实验结果表明,该算法无论在视觉效果还是客观评价方面,都有较好的表现。

Color transfer method with multi-source images

Color transfer is an effective approach to change the color of the image. Traditional methods mostly adopt single source image, so there is big limitation in actual application. This paper presented a color transfer techniques with multi-source images. This method chose the best-matched source colors for re-coloring each target region, by a series of operation, for example, brightness re-mapping; referencing color area; transferring synthesis and so on. Then, different transferring synthesis methods were given according to different color images and grayscale images. Finally, this paper achieved color transferring to every target area. Using colorfulness as the evaluation index, the experiments show that the proposed method can generate convincing results with better performance.