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Dynamic range adjusting system and method

A technology for dynamic range and adjustment systems, applied in the field of image processing, which can solve problems such as unfavorable operation and poor scalability of HDR functions.

Pending Publication Date: 2021-09-14
XIAN NOVASTAR TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In related technologies, it is proposed to use FPGA (Field Programmable Gate Array, Field Programmable Gate Array) platform to realize HDR function, but the scalability of FPGA hardware platform to realize HDR function is poor, which is not conducive to the realization of complex operations

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no. 1 example

[0031] see figure 1 , a dynamic range adjustment system 10 provided by the first embodiment of the present invention includes, for example: a non-volatile memory 11 , a media input interface 13 , a media output interface 15 and an embedded processor 17 .

[0032] Wherein, the non-volatile memory 11 stores an image dynamic range adjustment program 112 and an open source computer vision library 114 (Open Source Computer Vision Library, OpenCV for short). OpenCV is an open source function library for image processing, analysis, and machine vision. It typically runs on operating systems such as Linux, Windows, Android, and Mac OS. It is lightweight and efficient. For example, it is composed of a series of C It is composed of functions and a small number of C++ classes, and provides interfaces of Python, Ruby, MATLAB and other languages ​​to realize many general algorithms in image processing and computer vision. Furthermore, the non-volatile memory 11 of this embodiment is, for e...

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Abstract

The embodiment of the invention relates to a dynamic range adjusting system and method. The dynamic range adjusting system comprises, for example, a nonvolatile memory in which an open source computer vision library and an image dynamic range adjustment program are stored; a media input interface; a media output interface; and an embedded processor, electrically connected with the nonvolatile memory, the media input interface and the media output interface, and used for running the image dynamic range adjusting program and calling the open source computer vision library, performing dynamic range adjustment on a plurality of images input through the media input interface to obtain a composite image, performing tone mapping on the composite image to output the composite image to the media output interface, wherein the composite image is a high dynamic range image relative to the plurality of images. According to the embodiment of the invention, the HDR function can be realized based on the embedded processor.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a dynamic range adjustment system and a dynamic range adjustment method. Background technique [0002] HDR (High-Dynamic Range, high dynamic range) images can provide more Therefore, converting LDR or SDR sources into HDR sources, that is, realizing HDR functions, has become a hot research direction in the field of image processing. [0003] In the related art, it is proposed to use an FPGA (Field Programmable Gate Array, Field Programmable Gate Array) platform to implement the HDR function, but the FPGA hardware platform has poor scalability for implementing the HDR function, which is not conducive to realizing complex operations. [0004] Therefore, proposing a solution for realizing HDR with good scalability becomes an urgent technical problem to be solved. Contents of the invention [0005] In order to overcome the defects and deficiencies in the related ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235
CPCH04N23/741
Inventor 白忠贵李强国周晶晶
Owner XIAN NOVASTAR TECH