图像除雾装置和图像除雾方法

Abstract

The invention relates an image demisting device, and further relates to a corresponding image demisting method and an image processing system. The image demisting device comprises a preprocessing unit, a core frame parameter gaining unit, an ordinary frame parameter gaining unit and an image demisting unit, wherein the preprocessing unit is used for classifying an input image as a core frame or an ordinary frame, each pixel of the input image is provided with a distance parameter depending on an object distance, the core frame parameter gaining unit is used for gaining the distance parameter of each pixel of the core frame and a pixel distance parameter of a background image of the core frame, the ordinary frame parameter gaining unit is used for gaining the distance parameter of each pixel of the ordinary frame, and the image demisting unit conducts demisting processing on the core frame according to the distance parameter gained by the core frame parameter unit and conducts demisting processing on the ordinary frame according to the distance parameter gained by the ordinary frame parameter gaining unit, wherein the ordinary frame is divided into a background part and a foreground part by the ordinary frame parameter gaining unit.
本发明涉及一种图像除雾装置,包括:预处理单元,其用于将输入图像归类为核心帧或普通帧,输入图像的各像素具有取决于物距的距离参数;核心帧参数求取单元,其用于求取核心帧的各像素的距离参数以及核心帧的背景图像的各个像素距离参数;普通帧参数求取单元,其用于求取普通帧的各像素的距离参数;图像除雾单元,其利用由核心帧参数单元求出的距离参数对核心帧进行除雾处理,以及利用由普通帧参数求取单元得到的距离参数对普通帧进行除雾处理,其中,普通帧参数求取单元将普通帧分割为背景部分和前景部分。本发明还涉及一种相应的图像除雾方法和一种图像处理系统。

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