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A High Dynamic Range Scene Information Processing Method Based on Multiple Exposures

An information processing method and high dynamic range technology, applied in image communication, components of color TVs, components of TV systems, etc., can solve problems such as inconspicuous effects, and achieve the effect of increasing detailed features and expanding the range of representation

Active Publication Date: 2022-03-11
NANJING XIAOZHUANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, for high dynamic range image imaging, halo phenomenon is also a problem that will be faced. At present, there are many methods to solve this problem, but the effect is not obvious

Method used

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  • A High Dynamic Range Scene Information Processing Method Based on Multiple Exposures
  • A High Dynamic Range Scene Information Processing Method Based on Multiple Exposures
  • A High Dynamic Range Scene Information Processing Method Based on Multiple Exposures

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...

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Abstract

The present invention proposes a high dynamic range scene information processing method based on multi-exposure, which uses a reference image to obtain the halo pixel points and corresponding pixel values ​​of the input image; fills holes in the halo area map; transforms the reference image into Transform the image with the same exposure as the input image; repair and transform the image according to the input image to obtain a multi-frame halo-removed image; fit the multi-frame halo-removed image to fit the lighting matching curve; generate a scene according to the lighting matching curve The high dynamic range image; a kind of high dynamic range scene information processing method based on multi-exposure proposed by the present invention can not only effectively remove the halo phenomenon, but also avoid the details of the halo area in the single-frame reference image method. The drawbacks determined by a single frame reference image preserve and improve the details of the generated image in the halo area; and expand the representation range of the scene image, increasing the details of the highlight and dark areas in the scene image.

Description

technical field [0001] The invention relates to the field of digital image processing, in particular to a multi-exposure-based high dynamic range scene information processing method. Background technique [0002] A high dynamic range image is an image type that can represent a wide range of brightness changes in an actual scene. The pixel values ​​​​in the image are proportional to the actual brightness values ​​​​of corresponding points in the scene. Therefore, it can better represent bright and dark areas in the scene. optical properties. The range of pixel values ​​to be represented by dynamic range images is usually very large, sometimes reaching hundreds of thousands or even millions. Therefore, high dynamic range images generally convert pixel values ​​into single-precision floating-point decimals or logarithms for storage. [0003] The high dynamic range of high-quality images and the low dynamic range of display devices are the main conflicts. To make high dynamic r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235
CPCH04N23/741H04N23/73
Inventor 仇飞颜森林
Owner NANJING XIAOZHUANG UNIV
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