这里介绍了近红外光谱的数据预处理与研究，主要介绍了平滑、求导等种数据处理方法-Here introduced the near-infrared spectroscopy of the data pre-processing and research, mainly introduced smooth derivation types of data processing methods, etc.

关于指纹预处理算法，平滑处理算法，锐化处理算法，二值化处理算法。-A fingerprint preprocessing algorithm, smoothing algorithm, sharpening algorithm, two value processing algorithm.

Matlab 文字处理，删除其中的中文字符-Matlab word processing, remove the Chinese characters