数字的识别软件。其中包括灰度图、离散去噪、二值化、字符切割、神经网络识别。-digit recognition software. Including grayscale, discrete denoising, the two values, character cutting, neural network recognition.

High information redundancy and correlation in face images result in efficiencies when such images are used directly for recognition. In this paper, discrete cosine transforms are used to reduce image information redundancy because only a subset of t