计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
19期
20-22,122
,共4页
图像去噪%广义全变分范数%巴特沃斯高通滤波器%峰值信噪比
圖像去譟%廣義全變分範數%巴特沃斯高通濾波器%峰值信譟比
도상거조%엄의전변분범수%파특옥사고통려파기%봉치신조비
image denoising%generalized total variation model%Butterworth high pass filter%Peak Signal to Noise Ratio(PSNR)
为了得到既可保留图像低频信息又可增强图像高频信息的去噪后的图像，提出了一种广义全变分范数与巴特沃斯高通滤波器融合的图像去噪方法。分析了广义全变分范数的图像去噪模型基本原理，给出了其优点与缺点；讨论了改进的巴特沃斯高通滤波器图像去噪方法，指出了其优点及不足之处；结合两者的优点，将两种去噪方法进行融合而得到了一种可增强对比度和保留边缘细节的图像去噪方法。计算机仿真的主观与客观实验结果证明了基本原理分析的正确性。
為瞭得到既可保留圖像低頻信息又可增彊圖像高頻信息的去譟後的圖像，提齣瞭一種廣義全變分範數與巴特沃斯高通濾波器融閤的圖像去譟方法。分析瞭廣義全變分範數的圖像去譟模型基本原理，給齣瞭其優點與缺點；討論瞭改進的巴特沃斯高通濾波器圖像去譟方法，指齣瞭其優點及不足之處；結閤兩者的優點，將兩種去譟方法進行融閤而得到瞭一種可增彊對比度和保留邊緣細節的圖像去譟方法。計算機倣真的主觀與客觀實驗結果證明瞭基本原理分析的正確性。
위료득도기가보류도상저빈신식우가증강도상고빈신식적거조후적도상，제출료일충엄의전변분범수여파특옥사고통려파기융합적도상거조방법。분석료엄의전변분범수적도상거조모형기본원리，급출료기우점여결점；토론료개진적파특옥사고통려파기도상거조방법，지출료기우점급불족지처；결합량자적우점，장량충거조방법진행융합이득도료일충가증강대비도화보류변연세절적도상거조방법。계산궤방진적주관여객관실험결과증명료기본원리분석적정학성。
In order to obtain the image after being denoised that can not only reserve the low frequency information of image but also enhance the high frequency information of image, an image denoising method based on the fusion of gener-alized total variation model and improved Butterworth high pass filter is proposed. Firstly, the basic principle of the gener-alized total variation model image denoising is analyzed, and its advantage and disadvantage are given. Secondly, the image denoising method of the improved butterworth high pass filte is discussed, and its advantage and disadvantage are also given. Finally, the two advantages are inosculated and an image denoising method that can not only enhance image contrast but also reserve image edge detail is obtained. Both the subjective result and the objective result of the computer simulation indicate the correctness of the basic principle analysis.
