Method and apparatus for exposure compensating digital image

Abstract

The invention discloses a method for exposing and compensating digital images, comprising the steps as follows: digital images are divided into a plurality of regions; the gain value of the region is determined according to the average brightness value of each region; according to the gain value of the region, the pixels of the digital images are exposed and compensated. The invention also discloses a device for exposing and compensating the digital images. The proposal of the invention can darken the bright area in the digital images, brighten the dark area in the digital image and can remain the details in the images as much as possible.

Description

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AI Technical Summary

Benefits of technology

This technology divides an entire picture into different parts - one with more detail on it but also some gray regions around them – which helps make sure everything looks good when displayed correctly by adjusting certain parameters like color balance settings.

Problems solved by technology

The technical problem addressed in this patented method relates to improving the quality of digital cameras' captured scenes due to variations in ambient illumination levels caused by factors like weather changes during different periods of daylight hours. Current techniques have difficulty accurately adjusting how much outdoor lights enter through lens openings while maintaining good detail resolution on low contrast regions where there can still be noisy background noise.

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