This paper gives a new arithmetic of the background filtration (enhanced simplification high-passfiltering).
提出一种新的背景滤除算法(增强型简化高通滤波)。
2
However, the HF subband is created by subtracting the synthesized LF subband from original image but not by 2-D high-passfiltering original image.
但是,高频子带并不是通过2-D高通滤波原始图像,而是通过原始图像与合成的低通子带相减得到的。
3
With this technique, the digital image convolution can be realized, therefore, the image low-passfiltering, image high-passfiltering, edge-enhancing could be realized.