多尺度Retinex的低照度航空图像非线性增强The non linear enhance image for low illumination aerial based on multi-scale Retinex
杨国鹏;周欣;陈东;郭复胜;胡昌苗;
摘要(Abstract)：
针对低照度航空遥感图像亮度低、对比度低,阴影区域目标难以准确判读的问题,提出了一种基于多尺度Retinex的图像非线性增强方法。该方法采用递归迭代提高高斯滤波处理速度;采用灰度极值去除线性拉伸,尽可能保留原始细节信息;采用动态范围调节因子控制输出图像对比度。实验结果表明,灰度极值去除比例、动态范围调节因子和最大环绕尺度等重要参数的取值变化对图象处理效果具有影响。给出了上述3种参数合适的取值范围,有效提升了低照度航空遥感图像的判读效果。
关键词(KeyWords)： 多尺度Retinex;低照度图像;非线性增强;航空遥感
基金项目(Foundation):
作者(Authors): 杨国鹏;周欣;陈东;郭复胜;胡昌苗;
DOI: 10.16251/j.cnki.1009-2307.2018.01.004
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