flowchart.md

flowchart LR
    A[启动软件] --> B[用户交互界面]
    B --> C[上传图片按钮]
    C --> D{选择图片}
    D -->|成功| E[显示在“处理前的图片”区域]
    D -->|失败| B
    
    E --> F[功能选择按钮]
    F --> G{选择处理功能}
    G -->|模糊图像| H[使用中值滤波，卷积核大小较大]
    G -->|增加噪声| I[增加椒盐噪声，比例默认为2%]
    G -->|去除噪声| J[使用中值滤波，卷积核大小较小]
    G -->|边缘检测| K[使用Laplace算子边缘检测]
    G -->|频域分析| L[显示离散傅里叶变换图像]
    G -->|二值图像| M[默认以127为阈值转换为二值图像]
    G -->|负片图像| N[灰度图像每个像素值用255减]
    
    H & I & J & K & L & M & N --> O[显示在“处理后的图片”区域]
    O --> P{继续操作?}
    P -->|是| B
    P -->|否| Q[退出软件]

    style A fill:#fff,stroke:#333,stroke-width:2px
    style B fill:#fff,stroke:#333,stroke-width:2px
    style C fill:#fff,stroke:#333,stroke-width:2px
    style D fill:#fff,stroke:#333,stroke-width:2px
    style E fill:#fff,stroke:#333,stroke-width:2px
    style F fill:#fff,stroke:#333,stroke-width:2px
    style G fill:#fff,stroke:#333,stroke-width:2px
    style H fill:#fff,stroke:#333,stroke-width:2px
    style I fill:#fff,stroke:#333,stroke-width:2px
    style J fill:#fff,stroke:#333,stroke-width:2px
    style K fill:#fff,stroke:#333,stroke-width:2px
    style L fill:#fff,stroke:#333,stroke-width:2px
    style M fill:#fff,stroke:#333,stroke-width:2px
    style N fill:#fff,stroke:#333,stroke-width:2px
    style O fill:#fff,stroke:#333,stroke-width:2px
    style P fill:#fff,stroke:#333,stroke-width:2px
    style Q fill:#fff,stroke:#333,stroke-width:2px

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