Ultra-high dynamic range image generation method, computer device, and storage medium

Abstract

The invention is applicable to the technical field of data processing and provides a method for generating ultra-high dynamic range images. The method comprises the following steps: obtaining a groupof images to be processed with different exposure; according to the image to be processed, the camera response function is restored, and the image to be processed is combined into a high dynamic rangeirradiance map by convex combination; the high dynamic range irradiance image is processed based on the hue mapping algorithm, and the ultra-high dynamic range image is outputted. The obtained ultra-high dynamic range image is clear, and there is no situations such as bright spot focusing, not clear dark spot, dark spot focusing, not clear bright spot.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a method for generating an ultra-high dynamic range image, a computer device and a storage medium. Background technique [0002] The imaging resolution and dynamic range of digital imaging equipment are two main indicators to measure the imaging quality of imaging equipment. The imaging resolution of digital imaging equipment has been developed rapidly in recent decades, but the improvement of dynamic range has been very small. As a result, it is difficult to capture imaging details in scenes with backlighting or large changes in light. [0003] The dynamic range of single-exposure imaging of current digital imaging equipment is much lower than the visible dynamic range of human vision (including professional-grade SLR cameras, professional monitoring equipment, personal handheld terminals, etc.). Due to the limited dynamic range of images that can be obtaine...

AI Technical Summary

Problems solved by technology

Combining high dynamic range imaging with multiple exposures by a single camera is currently widely used, but there are still the following problems: multiple exposures by a single camera take a long time, and the total exposure time is the sum of multiple exposure imaging times , so it is only suitable for static scene shooting; for dynamic scene shooting, due to the displacement of moving objects, the combination of low dynamic images with different exposures will cause problems such as ghosting

[0004] It can be seen that the photographed images in the prior art have the problem of focusing in bright places and not being able to see clearly in dark places; focusing in dark places and not being able to see clearly in bright places

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