关键词: 图像处理, 图像融合, 颜色迁移, 颜色空间

Abstract: The paper presented a simple and fast color fusion method for night vision based on image enhancement and color transfer. Firstly, the contrast of infrared and low-light visible images was adjusted by local histogram equalization. And medium filter was applied to clean noises in the enhanced images. Then, the two enhanced images were fused into the three components of an RGB image in terms of a simple linear fusion strategy. To obtain false color images possessing a natural day-time color appearance, the paper suggested an approach which transferred color from the reference to the fused images in YUV color space. In this way, inappropriate color mappings were avoided and overall discrimination capabilities were enhanced. The experimental results based on three different data sets show that the final scene has a natural day-time color appearance. Furthermore, the fusion process is simple and fast.

Key words: image processing, image fusion, color transfer, color space