摘要
由于自然界的光线不总是相同的,而可感知到的一个物体的颜色依赖于照射到它的光源。人类的大脑可以很好地“校正”这些颜色变化,但CCD和CMOS感光器却不能完成这样的任务,所以要使图片色彩更逼近真实的原色,白平衡调节是必不可少的一步。文章论述了一种较为优异的自动白平衡算法,介绍了基于TMS320c6711b浮点DSP的完整的软硬件设计,以及通过模拟I2C时序实现了对cmos数字感光芯片的白平衡控制。
The light in the nature is not always constant and the perceived color of an object depends on the light source that casts on it. Human brains can well ＂correct＂ the change of these colors, but the CCD and CMOS sensors are not capable of such a task. In order to make the color of the objects in the pictures approach their primitive colors, the white balance procedure is necessary. An auto white balance system based on TMS320c671 lb floating DSP is developed in this paper. Also included is the complete software and hardware design based on TMS320c671 lb floating DSP. White balance control of the cmos digital chip is implemented by simulating I2C timing.
出处
《电子科技》
2006年第2期9-12,共4页
Electronic Science and Technology
基金
国家自然科学基金(No.60172004)
