- 使用ResNet18神经网络进行训练
- one-hot编码并将图片载入数据集，4轮训练达到最小损失
- 经测试集验证准确率100%，但模型体积过大
- 先压缩图片尺寸，分割图片，统计每种数字的二阶化后的像素矩阵
- 计算每种数字像素矩阵的平均灰度，取各数字与目标误差最小者作为识别结果
- 经测试单数字识别准绝度80%以上，验证码识别正确率60%
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南工大校园网验证码识别方案
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