# CNN **Repository Path**: dragonpara/CNN ## Basic Information - **Project Name**: CNN - **Description**: My CNN study & research - **Primary Language**: Python - **License**: MIT - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2020-07-23 - **Last Updated**: 2020-12-19 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # CNN ## convolution ![](https://images.gitee.com/uploads/images/2020/0723/165307_dbc40f64_7848481.jpeg) 微分算子(如二阶微分),对边缘图像非常敏感 二维图像f(x,y)的拉普拉斯算子: ![](https://images.gitee.com/uploads/images/2020/0723/165307_145e3099_7848481.png) 若 ![](https://images.gitee.com/uploads/images/2020/0723/165307_0c79f687_7848481.jpeg) 则 ![](https://images.gitee.com/uploads/images/2020/0723/165307_a620fb2a_7848481.jpeg) 对f(x,y)进行二阶微分: ![](https://images.gitee.com/uploads/images/2020/0723/165307_95d7fec4_7848481.jpeg) 如果我们以x,y 为坐标轴中心点,来重新表达这个算子,就可以是: ![](https://picb.zhimg.com/80/v2-121b2aa6333fb0369459535cbb5d5b69_720w.jpg)