基于颜色查找空间的自然感彩色融合算法及DSP实时实现

Color look-up space based natural color fusion algorithm and DSP real-time implementation

基于颜色查找空间的自然感彩色融合算法是一种快速有效地将自然光参考图像的色调"着色"到多波段融合图像的方法。颜色查找空间针对不同环境和场景的人眼观察任务,寻求参考图像与多波段融合图像的像素点灰度坐标索引与颜色值的最佳匹配关系,为融合图像提供类似于自然光参考图像并适合于解读场景的色彩,缩短处理时间,应用前景广泛。针对颜色查找表的实时视频帧处理任务,需要特定的硬件和软件设计,满足对于算法环境适应性和实时处理效果的需求。选用了TI公司的32位定点处理器TMS320DM642采集PAL制模拟视频,实时彩色融合,在标准显示器上输出PAL制彩色融合视频。文中介绍了基于颜色查找空间的自然感彩色融合算法的处理流程,DSP实时处理的硬件和软件设计,实现二维颜色查找表实时处理采用的优化方法,以及在未来适于颜色查找表算法的硬件、系统和应用推广。

Color look-up space based natural color fusion algorithm is a fast and efficient algorithm that applies the color of natural reference image to multiband fusion image. The color mapping is derived from the combination of a multiband image and a corresponding natural color reference image in different environment and different observeing task that improve situational awareness and reduce action times. For various potential application, a specific real-time harfware and software were designed. The target processor was a Texas Instruments TMS320DM642 fix point DSP. PAL video was captured, processed, and displayed on a standard monitor. The framework of color look-up space based natural color fusionalgorithm was discussed. The design of hardware and software of 2-dimensions color analysised. The opfimizations used to achieve real-time performance was analysised plans of hardware design, system design and application. look-up table was as well as future