Applied BP neural network to recognize numbers, and adopted a method of wipe off miscellaneous points to take out noise, and used a method of per pix feature extraction to extract feature vector.

• 应用BP神经网络对数字进行识别,其图像的预处理采用去除杂点方法去除噪声,使用逐像素特征提取方法进行特征向量的提取。