摘要
提出了一种基于高动态范围图像处理的成像式亮度测量方法。该方法首先利用一组由低动态范围时间曝光序列图像合成的HDR图像,经色彩空间变换得到色刺激值,然后利用数码相机特性曲线标定系数计算亮度值。通过对室外场景的实测实验,证明了算法的优越性。
A new method of DSC＇s imaging luminance measurement based on HDR image processing is proposed.The time scale exposure series of LDR images to compose a high dynamic range image are used in the method.Then the tristimulus value is calculated from the RGB output by using the color space transformation.Finally the estimated value of luminance is computed by using the calibration coefficient of the digital camera optic-electric conversing function.The luminance measurement results in a exterior test experiment have shown the approach＇s effectiveness.
出处
《光学技术》
CAS
CSCD
北大核心
2012年第2期191-196,共6页
Optical Technique
关键词
光学测量
成像式亮度测量
数码相机
高动态范围图像
光电转换函数
optical measurement
imaging luminance measurement
digital still camera
high dynamic range image
optic-electric conversing function
