基于偏微分方程的舰船图像增强研究
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摘要
舰船图像在采集和传输过程中,受到多种因素的干扰,导致图像细节信息丢失严重,使得图像亮度低,图像质量下降,为了解决该难题,提高图像视觉效果和图像质量,设计了基于偏微分方程的舰船图像增强方法。首先对当前舰船图像增强研究结果进行分析,提出采用小波分析对原始舰船图像进行处理,识别出舰船图像中的噪声,并设置合理的阈值抑制噪声的作用,然后采用偏微分方程模型对舰船图像进行非线性增强变换,突出舰船图像中的细节信息,改善舰船图像的清晰度,最后进行舰船图像增强的仿真测试,结果表明本文方法可以明显增强舰船增强图像亮度,使图像细节信息增加,舰船图像增强结果的评价指标全部优于对比方法的舰船图像增强结果,是一种有效的舰船图像增强方法。
In the process of acquisition and transmission of ship image, ship image is disturbed by many factors, such as loss of image details, low brightness and image quality. In order to solve this problem and improve the visual effect and image quality, a ship image enhancement method based on partial differential equation is designed. Firstly, the current research results of ship image enhancement are analyzed. Wavelet analysis is proposed to process the original ship image, identify the noise in the ship image, and set a reasonable threshold to suppress the noise. Then, the partial differential equation model is used to enhance the non-linear transformation of the ship image to highlight the ship image. The detailed information in the image can improve the sharpness of the ship image. Finally, the simulation phase test of the ship image enhancement is carried out. The method in this paper can obviously enhance the brightness of the ship image and increase the details of the image. The evaluation indexes of the ship image enhancement results are all better than those of the current classical methods, it is an effective method of ship image enhancement.
In the process of acquisition and transmission of ship image, ship image is disturbed by many factors, such as loss of image details, low brightness and image quality. In order to solve this problem and improve the visual effect and image quality, a ship image enhancement method based on partial differential equation is designed. Firstly, the current research results of ship image enhancement are analyzed. Wavelet analysis is proposed to process the original ship image, identify the noise in the ship image, and set a reasonable threshold to suppress the noise. Then, the partial differential equation model is used to enhance the non-linear transformation of the ship image to highlight the ship image. The detailed information in the image can improve the sharpness of the ship image. Finally, the simulation phase test of the ship image enhancement is carried out. The method in this paper can obviously enhance the brightness of the ship image and increase the details of the image. The evaluation indexes of the ship image enhancement results are all better than those of the current classical methods, it is an effective method of ship image enhancement.
引文
[1]李萍.改进Retinex的红外舰船图像增强算法[J].舰船科学技术,2018,40(8):163-165.
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[2]张问一,胡东辉,丁赤飚.基于FABEMD和Goldstein滤波器的SAR舰船尾迹图像增强方法[J].雷达学报,2012,1(4):426-435.
[3]郭明,周晓东,朱敏.一种自适应红外舰船图像增强算法[J].电光与控制,2012,19(3):25-29.
[4]柳超龙,王江安,江传富.舰船热轨迹红外图像增强研究[J].激光与红外,2006(5):413-416.
[5]李伟凯,王政霞,蒋伟.一种自适应分数阶偏微分图像增强模型[J].计算机工程与科学,2018,40(4):699-706.