图片拼接工具：多张图片横向/纵向无缝拼接、自定义间距与背景色、一键导出长图

🚀 实例简介

一款实用的图片拼接桌面工具，支持将多张图片按横向或纵向无缝拼接成一张长图。可自定义拼接间距、背景颜色，操作简单直观，适合制作社交媒体长图、产品对比图、证件照排版等场景。

💻 核心代码

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
图片拼接工具 - 多张图片横向/纵向无缝拼接
支持自定义间距、背景色、一键导出长图
"""
import tkinter as tk
from tkinter import ttk, filedialog, messagebox, colorchooser
from PIL import Image, ImageTk
import platform, os

CHINESE_FONT = "WenQuanYi Zen Hei" if platform.system() == "Linux" else "Microsoft YaHei"

class ImageStitcherApp:
    def __init__(self, root):
        self.root = root
        self.root.title("图片拼接工具 - 多图横向/纵向无缝拼接")
        self.root.geometry("780x560")
        self.root.configure(bg="#f0f0f0")
        self.images = []  # 存储打开的图片路径
        self.bg_color = "#FFFFFF"

        # 标题
        tk.Label(root, text="📷 图片拼接工具", font=(CHINESE_FONT, 18, "bold"),
                 bg="#f0f0f0", fg="#333").pack(pady=12)
        tk.Label(root, text="支持多张图片横向/纵向拼接，自定义间距与背景色",
                 font=(CHINESE_FONT, 10), bg="#f0f0f0", fg="#666").pack()

        # 控制区
        ctrl_frame = tk.Frame(root, bg="#f0f0f0")
        ctrl_frame.pack(pady=10, padx=20, fill="x")

        # 拼接方向
        tk.Label(ctrl_frame, text="拼接方向:", font=(CHINESE_FONT, 11),
                 bg="#f0f0f0").grid(row=0, column=0, padx=5)
        self.direction = tk.StringVar(value="horizontal")
        ttk.Radiobutton(ctrl_frame, text="横向拼接", variable=self.direction,
                        value="horizontal").grid(row=0, column=1, padx=5)
        ttk.Radiobutton(ctrl_frame, text="纵向拼接", variable=self.direction,
                        value="vertical").grid(row=0, column=2, padx=5)

        # 间距
        tk.Label(ctrl_frame, text="间距(px):", font=(CHINESE_FONT, 11),
                 bg="#f0f0f0").grid(row=0, column=3, padx=(20, 5))
        self.gap_var = tk.StringVar(value="0")
        ttk.Entry(ctrl_frame, textvariable=self.gap_var, width=6).grid(row=0, column=4)

        # 背景色
        tk.Label(ctrl_frame, text="背景色:", font=(CHINESE_FONT, 11),
                 bg="#f0f0f0").grid(row=0, column=5, padx=(20, 5))
        self.color_preview = tk.Label(ctrl_frame, text="  ", bg=self.bg_color,
                                       width=3, relief="solid")
        self.color_preview.grid(row=0, column=6, padx=2)
        tk.Button(ctrl_frame, text="选择", font=(CHINESE_FONT, 10),
                  command=self.pick_color).grid(row=0, column=7)

        # 按钮区
        btn_frame = tk.Frame(root, bg="#f0f0f0")
        btn_frame.pack(pady=5)
        tk.Button(btn_frame, text="📂 添加图片", font=(CHINESE_FONT, 12, "bold"),
                  bg="#4CAF50", fg="white", padx=15, command=self.add_images).pack(side="left", padx=5)
        tk.Button(btn_frame, text="🗑 清空列表", font=(CHINESE_FONT, 12),
                  bg="#f44336", fg="white", padx=15, command=self.clear_images).pack(side="left", padx=5)
        tk.Button(btn_frame, text="🔗 拼接并导出", font=(CHINESE_FONT, 12, "bold"),
                  bg="#2196F3", fg="white", padx=15, command=self.stitch_and_save).pack(side="left", padx=5)

        # 图片列表
        list_frame = tk.LabelFrame(root, text="图片列表（拖拽排序）", font=(CHINESE_FONT, 11),
                                    bg="#f0f0f0")
        list_frame.pack(pady=8, padx=20, fill="both", expand=True)
        self.listbox = tk.Listbox(list_frame, font=(CHINESE_FONT, 10), height=8)
        self.listbox.pack(padx=10, pady=8, fill="both", expand=True)

        # 状态栏
        self.status = tk.Label(root, text="就绪 - 请添加图片开始拼接", font=(CHINESE_FONT, 10),
                               bg="#f0f0f0", fg="#666", anchor="w")
        self.status.pack(fill="x", padx=20, pady=5)

    def pick_color(self):
        color = colorchooser.askcolor(title="选择背景色", initialcolor=self.bg_color)

💡 适用场景

• 制作社交媒体长图（微博、朋友圈拼图）
• 产品对比图拼接展示
• 证件照排版打印
• 多张截图合并为一张完整图