Multi-exposure control method and multi-exposure control device

Abstract

The invention discloses a multiple exposure control method which comprises the following steps: a bright image and a dark image are acquired; exposure time of the bright image is larger than that of the dark image; reliability of pixels in the bright image and reliability of pixels in the dark image are acquired; the exposure time of the bright image or the exposure time of the dark image is adjusted according to the acquired reliability of the pixels in the bright image and the acquired reliability of the pixels in the dark image. By adoption of the technical proposal provided by the invention, the method is favorable for enlarging a dynamic range of images.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a multi-exposure control method and a multi-exposure control device. Background technique [0002] In a real scene, the dynamic range that the human eye can perceive is very large, and it can perceive that the brightness is 10 -3 cd / m 2 starlight, can also detect the brightness of 10 5 cd / m 2 sunlight, and the human eye can detect various details in the real scene even in very dark and very bright conditions. However, the brightness dynamic range of the current image acquisition equipment is low, and the corresponding bright details cannot be seen in particularly bright scenes, and the corresponding dark details cannot be seen in particularly dark scenes. The perceived brightness dynamic range varies greatly. [0003] In order to solve the above problems, the prior art proposes a method of rotating exposures to obtain images of different exposure times for the same ...

AI Technical Summary

Problems solved by technology

[0024] 2. The CMOS imaging mode with bright and dark pixels inlaid will reduce the resolution of the image

Images