Method and apparatus for generating image

Abstract

The embodiment of the invention discloses a method and apparatus for generating an image. A specific embodiment of the method comprises the following steps: simultaneously performing exposure on a target scene via at least two shooting devices to obtain at least two images, wherein the calibration parameters of the at least two shooting devices are the same, and the brightness of the images shot by different shooting devices is different; determining an overlapped area of the at least two images, and dividing the overlapped area into a plurality of sub-areas according to a preset size; for each image in the at least two images, determining an image block corresponding to each sub-area; for each sub-area in the plurality of sub-areas, selecting the image block having the largest weight value from the image blocks corresponding to the sub-area, wherein the weight value is determined based on the noise of the image block and a color value of a color channel; and generating the image basedon the selected image block. By adoption of the method and apparatus provided by the embodiment, the high dynamic range image of a moving object or shot in a moving process can be obtained without generating smearing.

Description

technical field [0001] The embodiments of the present application relate to the field of computer technology, specifically to the field of Internet technology, and in particular to a method and device for generating an image. Background technique [0002] In daily life, it is often necessary to shoot scenes where dark areas and bright areas exist at the same time. The latitude of ordinary cameras (the ability of the camera to record the brightest and darkest details and levels) is low, and the dynamic range of the photos taken (dynamic range represents a range of The range from the brightest to the darkest of a photo) is small (for example, about 70db), and ordinary photos may have problems with bright areas being too bright or dark areas being too dark, and it is difficult to clearly show the details of dark areas and details of bright areas at the same time . [0003] In this situation, high dynamic range images with wider dynamic range come into being. Compared with ord...

AI Technical Summary

Problems solved by technology

[0002] In daily life, it is often necessary to shoot scenes where dark areas and bright areas exist at the same time. The latitude of ordinary cameras (the ability of the camera to record the brightest and darkest details and levels) is low, and the dynamic range of the photos taken (dynamic range represents a range of The range from the brightest to the darkest of a photo) is small (for example, about 70db), and ordinary photos may have problems with bright areas being too bright or dark areas being too dark, and it is difficult to clearly show the details of dark areas and details of bright areas at the same time

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