在人脸图像定位的前提上,利用灰度信息实现了人脸面部主要器官如眼睛、鼻子和嘴巴的定位.采用双三次插值法对图像进行旋转和缩放.另外,采用直方图增强的方法对图像灰度值进行归一化处理.%On the premise of face location, this paper apply the grey-scale information to locate major facial organs, such as eyes, nose and mouth. Bi-cubic interpolation, needs to be introduced in image rotation and zoom during the preprocessing phase of face images; moreover, grey value of the image is normalized by adopting histogram enhancement.
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