舌像颜色校正算法对比研究

Comparison of Color Correction Algorithm for Tongue Image

舌苔颜色是中医舌诊中的一个重要特征。针对在自然环境下中医舌像的图像采集中出现的颜色失真问题,在拍摄舌像时,将标准色标卡放在舌头边一同拍摄,并应用多项式回归算法对图像进行颜色校正。实验结果表明,该方法相比于完美反射算法、灰度世界算法、偏色检测及颜色校正算法,校正结果更准确。

The color of tongue coating is an important feature in tongue diagnosis of traditional Chinese Medicine.In order to solve the problem of color distortion in image acquisition of TCM tongue image in natural environment,when shooting the tongue image,the standard color card is placed beside the tongue to shoot together,and the polynomial regression algorithm is used to correct the color of the image.Experimental results show that the proposed method is more accurate than perfect reflection algorithm,gray world algorithm,color deviation detection and color correction algorithm.