手写数字识别中图像预处理技术的研究 Research on Image Pretreatment Technique in Recognition of Handwritten Number

预处理是手写数字识别中重要的一步，处理结果的优劣直接影响到识别结果的正确与否，直接影响到识别算法的性能。本文主要讨论手写体数字图像的预处理过程，在所用的MNIST库上进行实验，效果良好。 Pretreatment is a vital step in recognition of handwritten numerals. The merits of the processing directly affect the result of recognition and the recognition performance of the algorithm. In this paper, pretreatment process for image is discussed and it shows a good result on the database of MNIST.