Multi-feature image haze removal

摘要

Multi-feature image haze removal is described. In one or more implementations, feature maps are extracted from a hazy image of a scene. The feature maps convey information about visual characteristics of the scene captured in the hazy image. Based on the feature maps, portions of light that are not scattered by the atmosphere and are captured to produce the hazy image are computed. Additionally, airlight of the hazy image is ascertained based on at least one of the feature maps. The calculated airlight represents constant light of the scene. Using the computed portions of light and the ascertained airlight, a dehazed image is generated from the hazy image.

主权项

1. A method implemented by a computing device, the method comprising:
extracting feature maps from a hazy image of a scene, each of the feature maps conveying information about visual characteristics of the scene captured in the hazy image; computing portions of light that are not scattered by atmosphere and are captured from the scene to produce the hazy image, including using a trained model that derives the portions of light based on the visual characteristics conveyed by the feature maps; ascertaining, based on at least one of the feature maps, airlight of the hazy image that represents constant light of the scene; and generating a dehazed image from the hazy image using the computed portions of light and the calculated airlight.