【摘要】 提出了一种基于非局部扩散的去除乘性噪声的模型。该模型根据图像噪声为高斯噪声的假设建立图像恢复的能量泛函,由变分法得到偏微分方程。通过人工合成图像和真实图像的实验结果可知,本文提出的模型在去噪效果方面优于基于有界变差的乘性噪声模型。更多还原

【Abstract】 A model for the removal of multiplicative noises was proposed based on the non-local diffusion method.Under the assumption that the image is corrupted by Gaussian noise,the energy functional for image recovery was established and a partial differential equation was obtained by the calculus of variation.Experiments on synthetic image and real-world image were conducted.Results show that the denoising effect of the proposed model is better than that of the model based on bounded variation.更多还原