My attempt at making virtual dpad for windows mobile

实现android系统的DPAD按键处理-Android system DPAD button processing

This code gives the DPAD filter, which has the various codng that provides the filtering of the image.

Noise estimator for SENSE MRI The Maximum Spacing Noise Estimation in Single-coil Background MRI Data Signal Dependent Noise Level Estimation Fast Noise Estimation in Images Detail Preserving Anosotropic Diffusion for Speckle Filtering (DPAD