基于快速Otsu和等色差的红外图像伪彩实时显示

Real-time Display of Pseudo-color Infrared Images Based on Otsu Method and Equal Color Difference

红外图像一般为灰度图像,对其进行伪彩色处理是一种非常重要的增强手段。针对传统颜色路径未考虑人眼差异因素,设计了基于CIE94等色差的颜色路径。同时针对传统彩虹编码采用固定阈值分割会造成图像缺乏层次感、视觉模糊的问题,以及监控系统实时刷新画面的需求,提出基于快速Otsu方法和等色差原理的红外图像伪彩增强算法。结果表明,算法处理后,图像色彩丰富、人眼分辨率高,轮廓清晰并且满足了系统实时显示要求。

Infrared images are generally gray images and their pseudo color processing is a very im‐portant means of image enhancing .First ,we design an equal chromatic aberration color path based on CIE94 due to the fact that the traditional color path does not consider the human eyes factors .Meanwhile , in response to the lack of hierarchical sense ,dimness of vision etc .in the images subject tofixed threshold segmentation in the traditional rainbow coding and the demand of the monitoring system for real time re‐fresh of the screen ,the paper proposes an infrared image pseudo color enhancement algorithm based on rapid Otsu method and the principle of equal chromatic aberration .The results show that the image has rich colors ,a high visual resolution ,and a clear outline and meets the requirements of real time display of the system after it is processed by the algorithm .