一种非线性扩散线形纹理图像增强的方法

Nonlinear Diffusion for Linear Texture Image Enhancement

对于运用非线性扩散滤波器对线形纹理图像的增强 ,提出了一种根据图像纹线方向对传统扩散滤波器的扩散系数的修正 ,使修正后的“半各向异性”扩散滤波器适合于线形纹理图像的滤波 .文中直接给出了滤波器的离散形式 ,使滤波过程易于实现 ,并缩短了滤波时间 .

Applying nonlinear diffusion filter for linear texture image enhancement, some beneficial improvements on the diffusion coefficient of traditional diffusion filter based on texture direction have been made. The modified'semi-anistropic' diffusion filter is more adaptive to linear texture enhancement. The filter is directly given in the form of discretization so that it is easy to implement and the processing time is greatly saved.