Long Image Slicer Tool

A graphical user interface tool for slicing long images into multiple parts by clicking to set cutting lines with the mouse.

Features

• 🖼️ Support for multiple image formats (JPG, PNG, BMP, GIF, TIFF, etc.)
• 🖱️ Mouse click to set cutting line positions
• 👀 Real-time cutting line preview (blue dashed preview, red solid cutting lines)
• 📝 Cutting line list management (view, delete)
• 💾 Automatic saving of sliced images
• 🔄 Support for image scaling and scrolling view
• 📐 Window width fits image: Horizontal display width perfectly fits image width, vertical height is fixed
• 🖱️ Mouse wheel support: Vertical scrolling for long images, Shift+wheel for horizontal scrolling
• 🎨 Beautiful UI design: Modern interface, icon buttons, card-style layout

Installation

pip install -r requirements.txt

Usage

1. Run the program:

   python cut_long_picture.py

2. Click the "📁 Select Image" button to choose a long image to slice

3. Click on the image to set cutting line positions:

   • Mouse movement shows blue dashed line preview
   • Clicking adds red cutting lines
   • Cutting line positions are displayed in the right panel
   • Use mouse wheel to scroll vertically through long images
   • Hold Shift+wheel for horizontal scrolling

4. Manage cutting lines:

   • Select cutting lines in the right panel and click "❌ Delete Selected" to remove
   • Click "🗑️ Clear Cutting Lines" to remove all cutting lines

5. Click "✂️ Slice and Save" button:

   • Choose save directory
   • The program will automatically slice the image according to cutting lines and save

Output Files

Sliced images will be named in the following format:

• original_filename_slice_01.png
• original_filename_slice_02.png
• ...

Interface Description

• Control Panel: Contains buttons for selecting images, clearing cutting lines, slicing and saving
• Image Display Area: Shows the image, supports scrolling view, clickable to set cutting lines
• Cutting Lines List: Displays all cutting line positions, supports selection and deletion

Notes

• Cutting lines are automatically sorted by y-coordinate
• Duplicate cutting line positions are automatically deduplicated
• Saved images are in PNG format to ensure quality
• Supports scrolling view for extra-long images
• Window width automatically adjusts according to image width (fits image width), height is fixed at 80% of screen height
• Mouse wheel operations: Normal wheel for vertical scrolling, Shift+wheel for horizontal scrolling
• Interface uses modern design, supports high DPI displays

长图切割工具

一个带有图形用户界面的长图切割工具，可以通过鼠标点击设置切割线，将长图切割成多个部分。

功能特点

• 🖼️ 支持多种图片格式（JPG, PNG, BMP, GIF, TIFF等）
• 🖱️ 鼠标点击设置切割线位置
• 👀 实时预览切割线效果（蓝色虚线预览，红色实线切割线）
• 📝 切割线列表管理（查看、删除）
• 💾 自动保存切割后的图片
• 🔄 支持图片缩放显示和滚动查看
• 📐 窗口宽度贴合图片：横向展示宽度完全贴合图片宽度，纵向固定高度
• 🖱️ 滚轮支持：垂直滚动查看长图，Shift+滚轮水平滚动
• 🎨 美观的UI设计：现代化界面，图标按钮，卡片式布局

安装依赖

pip install -r requirements.txt

使用方法

1. 运行程序：

   python cut_long_picture.py

2. 点击"选择图片"按钮，选择要切割的长图

3. 在图片上用鼠标点击设置切割线位置：

   • 鼠标移动时会显示蓝色虚线预览
   • 点击后会添加红色切割线
   • 切割线位置会显示在右侧列表中
   • 使用滚轮垂直滚动查看长图
   • 按住Shift+滚轮进行水平滚动

4. 管理切割线：

   • 在右侧列表中选择切割线，点击"删除选中"可删除
   • 点击"清除切割线"可删除所有切割线

5. 点击"切割并保存"按钮：

   • 选择保存目录
   • 程序会自动将图片按切割线分割并保存

输出文件

切割后的图片会以以下格式命名：

• 原文件名_slice_01.png
• 原文件名_slice_02.png
• ...

界面说明

• 控制面板：包含选择图片、清除切割线、切割并保存等按钮
• 图片显示区域：显示图片，支持滚动查看，可点击设置切割线
• 切割线列表：显示所有切割线的位置，支持选择删除

注意事项

• 切割线会自动按y坐标排序
• 重复位置的切割线会被自动去重
• 保存的图片格式为PNG，保证质量
• 支持超长图片的滚动查看
• 窗口宽度会根据图片宽度自动调整（贴合图片宽度），高度固定为屏幕的80%
• 滚轮操作：普通滚轮垂直滚动，Shift+滚轮水平滚动
• 界面采用现代化设计，支持高DPI显示