CAJ | 학술논문

在分析含噪图像恢复方法和脉冲噪声概率密度函数的基础上，提出了一种基于点处理理论的脉冲噪声污染图像的恢复算法。该算法依次扫描图像的像素点，判断当前的像素点是否为脉冲噪声数据点，如果为噪声点，则计算空域滤波器的输出结果，并替代该像素点的值；否则，该像素点的值保持不变。实验结果表明，该方法基于像素点的空域处理，具有无排序操作、算法执行速度快和保持图像细节的优点。
재분석함조도상회복방법화맥충조성개솔밀도함수적기출상，제출료일충기우점처리이론적맥충조성오염도상적회복산법。해산법의차소묘도상적상소점，판단당전적상소점시부위맥충조성수거점，여과위조성점，칙계산공역려파기적수출결과，병체대해상소점적치；부칙，해상소점적치보지불변。실험결과표명，해방법기우상소점적공역처리，구유무배서조작、산법집행속도쾌화보지도상세절적우점。
Based on the analysis of restoration methods of noisy image and probability density function of pulse noise ,a kind of restoration algorithm on pulse noisy image based on a pixel is proposed .The pixel is scanned in a given order and is judged whether it is a pixel with the pulse noise data or not .If it is a noisy pixel ,the output of a kind of spatial filter is computed and the pixel data is replaced .Otherwise it is unchanged .The experiment results show that it is a kind of spatial filters based on the pixel processing and it has the advantages of no sorting operations ,short execution time and keeping the image details .