Standard-definition input and high-definition output-based on-board image processing method

Abstract

The invention discloses a standard-definition input and high-definition output-based on-board image processing method. The method comprises image enhancement and image fusion, wherein the image enhancement comprises the following steps of: 1, inputting an RGB color image and respectively carrying out following processing on three channel images R, G and B, 2, carrying out gray stretching correction on the image, 3, calculating an overall brightness coefficient and an overall adjustment coefficient of the image, 4, dividing the image into M*M sub-block images, 5, calculating a brightness coefficient and an adjustment coefficient of each sub-block image, 6, correcting the adjustment coefficient of each sub-block image according to the overall adjustment coefficient of the image, 7, calculating an adjustment coefficient of each pixel point, and 8, adjusting the brightness of each pixel point; and the image fusion comprises the following steps of: fusing overlapped areas of two adjacent images through a weighted gradient manner, defining the two adjacent frames to be a first image and a second image, and gradually transiting from the first image to the second image in the overlapped areas through position weighted fusion so as to realize fusion of the two adjacent images.

Description

technical field [0001] The invention relates to the technical field of vehicle image processing, in particular to a vehicle image processing method with standard definition input and high definition output. Background technique [0002] With the development of the automobile industry, panoramic view systems are increasingly used in vehicles in order to improve driving safety. As part of the on-board monitoring, the surround view system sets at least four wide-angle cameras (usually ultra-wide or fish-eye cameras) that cover the vehicle's peripheral field of view around the car body. The image is sent to a system of the vehicle, which is processed into a 360-degree top view of the vehicle body around the vehicle, and finally displayed on the screen of the center console, allowing the driver to clearly check whether there are obstacles around the vehicle and understand the location of the obstacle Relative bearing and distance to help the driver avoid it. Because the surroun...

AI Technical Summary

Problems solved by technology

[0008] In addition, usually the overlapping part of the car panoramic view image is either intercepted and displayed using the dividing line, or the two images are mixed and displayed at a ratio of 1:1. There is no distinction between the pros and cons of the two images in the overlapping part, making the original image terrible. Parts are also displayed, greatly reducing the quality of the image

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