| 薯类农产品视觉图像的去噪方法 |
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| 引用本文： | 邢航,张铁民,漆海霞,杨秀丽,陈安.薯类农产品视觉图像的去噪方法[J].农机化研究,2012,34(7):43-47,52. |
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| 作者姓名： | 邢航 张铁民 漆海霞 杨秀丽 陈安 |
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| 作者单位： | 1. 华南农业大学工程学院/南方农业机械与装备关键技术重点实验室,广州,510442
2. 广东工业大学实验教学部,广州,510006 |
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| 摘 要： | 针对目前图像处理中的阈值去噪方法存在的问题,探讨了小波阈值法中小波分解层数和小波系数处理算法,在视觉图像阈值去噪中采用了小波分解层数的自适应算法,并针对小波系数处理中硬阈值和软阈值函数存在的问题,提出了一种新的阈值函数用于图像去噪.结果显示:去噪后图像的峰值信噪比PSNR、均方差MSE在最优分解层数下相对传统阈值函数能达到全局最优,同时视觉上的清晰度更好.
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| 关 键 词： | 小波 去噪 阈值函数 薯类 |
Potato Agricultural Product Visual Image Denoising Method |
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| Xing Hang
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Zhang Tiemin
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Qi Haixia
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Yang Xiuli
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Chen An.Potato Agricultural Product Visual Image Denoising Method[J].Journal of Agricultural Mechanization Research,2012,34(7):43-47,52. |
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| Authors: | Xing Hang Zhang Tiemin Qi Haixia Yang Xiuli Chen An |
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| Institution: | 1.College of Engineering/Key Laboratory of Key Technology on Agricultural Machine and Equipment,South China Agricultural University,Guangzhou 510442,China;2.Department of Experimental Teaching,Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | In view of the current problems in image processing threshold denoising methods,discusses the wavelet decomposition level and wavelet coefficient processing algorithm of the wavelet threshold method,and uses the wavelet decomposition level’s adaptive algorithm in visual image threshold denoising,and for the treatment of hard and soft threshold function’s problems,puts forward a new threshold function to image denoising,the results show that the denoised image’s peak signal to noise ratio and mean square error reach the global optimum on the optimal decomposition level relative to the traditional threshold function,at the same time the visual clarity is better. |
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| Keywords: | wavelet denoising threshold function potato |
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