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Infrared image enhancement method and system

An infrared image enhancement system technology, applied in the field of infrared image enhancement methods and systems, can solve problems such as difficult to meet the real-time requirements of the system, high space complexity and time complexity, and achieve good real-time performance and good robustness , high efficiency effect

Active Publication Date: 2019-10-01
SHANGHAI RONGJUN TECH
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Problems solved by technology

[0004] However, the existing image enhancement methods have high space complexity and time complexity, and it is difficult to meet the real-time requirements of the system

Method used

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  • Infrared image enhancement method and system
  • Infrared image enhancement method and system
  • Infrared image enhancement method and system

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] figure 1 A schematic diagram of the principle of the infrared image enhancement method provided by the embodiment of the present invention, such as figure 1 As shown, firstly, the input image is subjected to stationary wavelet transform and saliency map calculation respectively; secondly, contrast enhancement and nonlinear enhancement are respectively performed on the low-pass subband and detail subband after stationary wavelet transform; at the same time, the acquired saliency The image is low-...

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Abstract

The invention provides an infrared image enhancement method and system. The method comprises the steps of obtaining a stable wavelet transformation result and a saliency map corresponding to an infrared image, wherein the stable wavelet transformation result comprises a low-pass sub-band and a detail sub-band; carrying out contrast increase processing on the low-pass sub-band, and carrying out linear enhancement processing on the detail sub-band to obtain an enhanced low-pass sub-band and an enhanced detail sub-band; performing low-pass filtering and threshold segmentation processing on the saliency map to obtain a processed saliency map; carrying out dot multiplication processing on the enhanced detail sub-bands and the processed saliency map to obtain fused detail sub-bands; and based onthe enhanced low-pass sub-band and the fused detail sub-band, carrying out stable wavelet inverse transformation to obtain an enhanced infrared image. According to the invention, the infrared image enhancement processing efficiency and real-time performance can be effectively improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular, to an infrared image enhancement method and system. Background technique [0002] Image enhancement technology is mainly to improve the recognition ability of images, selectively highlight the features of interest in the image, and subtract redundant features. Due to the characteristics of infrared imaging technology, infrared images generally have problems of low contrast, blurred edges and unobtrusive details. Therefore, image enhancement technology is needed to improve the quality of infrared images. [0003] At present, there are mainly two types of infrared image enhancement methods applicable in the market, image enhancement methods based on spatial domain and image enhancement methods based on transform domain. The spatial domain image enhancement method is to directly process the pixels in the image, fundamentally speaking, it is based on the grayscale map...

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Application Information

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IPC IPC(8): G06T5/00G06T5/10G06T5/20G06T7/136
CPCG06T5/10G06T5/20G06T7/136G06T2207/10048G06T2207/20064G06T2207/20221G06T2207/20056G06T5/70
Inventor 张焕芹秦翰林延翔
Owner SHANGHAI RONGJUN TECH
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