比值增强 meaning in English

ratio enhancement
ratioenhancement

On the basis of geometric correction for remote sensing images data , detailed character analysis was conducted for the tm images . several image transformations which are linear scale transformation , ratio processing , principal components transformation , tasseled - cap transformation and minimum noise fraction rotation ( mnf transformation ) were then implemented
在对研究区数据进行几何精校正的基础上，对tm数据进行了详细的特征分析，并对其进行了有利于植被信息提取的几种图像变换：线性拉伸、比值增强、主成分变换、缨帽变换以及最低噪声分离变换( mnf变换) 。