基于线性预测的图像去噪

针对图像脉冲噪声的去除问题,本文提出了一种基于线性预测的新方法.根据噪声的特点,首先将像素点分成信号点和可疑噪声点,对信号点不进行处理,对可疑噪声点进行进一步分析.若可以噪声点被确定为噪声点,则采用线性预测方法进行滤波,否则保持不变.实验结果表明,本文方法不仅有效的去除了噪声,而且很好的保持了图像的细节.

A Linear Prediction Algorithm for Image Denoising

To remove impulsive noise from an image, an algorithm based on linear prediction is proposed. The algorithm determines a pixel as signal pixel or possible noise pixel according to the charaeteristie of impulsive noise. And then only the possible noise pixel is analyzed. If the possible noise pixel is confirmed, the algorithm employs linear prediction algorithm to remove the noise. The result of experiment shows that this method is satisfied in performance of filtering noise and details preservation.