彩色图像着色

COMPUTATION FOR COLOR IMAGE RENDERING

讨论了彩色图像着色的数值计算方法 ,即根据场景中物体表面的反射光谱能量分布来计算视觉响应的三刺激值 .首先用线性模型来逼近物体表面的反射光谱连续函数 ,然后用高斯积分法、黎曼求和法进行了数值计算 ,最后把计算出来的三刺激值转化为色品坐标 。

The numerical computional method for color image rendering,which aims to calculate the tristimulus values of vision responses from the surface reflecting spectral power distribution in the scene,is presented.The linear model is exploited to approximate the reflecting continuous spectrum of the object surface and the numerical computation is conducted via Gaussian quadrature(GQ) and Riemannian summation (RS).The tristimulus values are converted to chromatic coordinates which match the images captured by CCD camera. [