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import tkinter as tk
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from tkinter import filedialog, messagebox, Toplevel
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from PIL import Image, ImageTk
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import numpy as np
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import cv2
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import os
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# 全局变量声明
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img_path = "" # 用于存储图像路径
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src = None # 用于存储已选择的图像
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X = None # 用于存储第一张图像
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Y = None # 用于存储第二张图像
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img_label = None # 用于存储显示选择的图片的标签
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edge = None # 用于存储当前处理后的图像
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# 用于不同功能的Toplevel窗口
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AffineWin = None
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TurnWin = None
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ArithWin = None
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def select_image(root):
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"""
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选择图像并显示在主窗口中
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"""
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global img_path, src, img_label, edge
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# 打开文件对话框选择图像文件
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img_path = filedialog.askopenfilename(filetypes=[("Image files", "*.jpg;*.png;*.jpeg;*.bmp")])
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if img_path:
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# 处理图像路径以确保反斜杠正确处理，并使用UTF-8编码处理中文路径
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img_path_fixed = os.path.normpath(img_path)
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# 读取图像文件
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src_temp = cv2.imdecode(np.fromfile(img_path_fixed, dtype=np.uint8), cv2.IMREAD_UNCHANGED)
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if src_temp is None:
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messagebox.showerror("错误", "无法读取图片，请选择有效的图片路径")
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return
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src = cv2.cvtColor(src_temp, cv2.COLOR_BGR2RGB)
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# 检查 img_label 是否存在且有效
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if img_label is None or not img_label.winfo_exists():
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img_label = tk.Label(root)
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img_label.pack(side=tk.TOP, pady=10)
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# 显示缩略图
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img = Image.open(img_path)
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img.thumbnail((160, 160))
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img_tk = ImageTk.PhotoImage(img)
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img_label.configure(image=img_tk)
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img_label.image = img_tk
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# 更新 edge 变量为 PIL.Image 对象，以便稍后保存
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edge = Image.fromarray(src)
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else:
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messagebox.showerror("错误", "没有选择图片路径")
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def show_selected_image(root):
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"""
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显示选定的图像
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"""
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global img_label
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img_label = tk.Label(root)
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img_label.pack(side=tk.TOP, pady=10)
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img = Image.open(img_path)
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img.thumbnail((160, 160))
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img_tk = ImageTk.PhotoImage(img)
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img_label.configure(image=img_tk)
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img_label.image = img_tk
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def changeSize(event, img, LabelPic):
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"""
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根据窗口大小调整图像大小
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"""
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img_aspect = img.shape[1] / img.shape[0] # 计算图像的宽高比
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new_aspect = event.width / event.height # 计算窗口的新宽高比
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if new_aspect > img_aspect:
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new_width = int(event.height * img_aspect) # 根据新高度计算新宽度
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new_height = event.height # 使用新高度
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else:
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new_width = event.width # 使用新宽度
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new_height = int(event.width / img_aspect) # 根据新宽度计算新高度
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resized_image = cv2.resize(img, (new_width, new_height)) # 调整图像大小
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image1 = ImageTk.PhotoImage(Image.fromarray(resized_image))
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LabelPic.image = image1
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LabelPic['image'] = image1
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def savefile():
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"""
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保存处理后的图像文件
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"""
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global edge
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# 打开保存文件对话框
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filename = filedialog.asksaveasfilename(defaultextension=".jpg", filetypes=[("JPEG files", "*.jpg"), ("PNG files", "*.png"), ("BMP files", "*.bmp")])
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if not filename:
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return
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if edge is not None:
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try:
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edge.save(filename)
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messagebox.showinfo("保存成功", "图片保存成功！")
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except Exception as e:
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messagebox.showerror("保存失败", f"无法保存图片: {e}")
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else:
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messagebox.showerror("保存失败", "没有图像可保存")
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def affine_tra(root):
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"""
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对图像进行仿射变换
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"""
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global src, AffineWin, edge
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#判断是否已经选取图片
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if src is None:
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messagebox.showerror("错误", "没有选择图片！")
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return
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rows, cols = src.shape[:2] # 获取图像的行和列
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# 设置图像仿射变化矩阵
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post1 = np.float32([[50, 50], [200, 50], [50, 200]])
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post2 = np.float32([[10, 100], [200, 50], [100, 250]])
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m = cv2.getAffineTransform(post1, post2)
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# 图像仿射变换
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result = cv2.warpAffine(src, m, (cols, rows))
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# 更新 edge 变量
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edge = Image.fromarray(result)
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# 创建Toplevel窗口
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try:
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if AffineWin:
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AffineWin.destroy()
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except Exception:
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print("NVM")
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finally:
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AffineWin = Toplevel(root)
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AffineWin.attributes('-topmost', True)
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AffineWin.geometry("360x300")
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AffineWin.resizable(True, True)
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AffineWin.title("仿射变换结果")
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# 显示图像
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LabelPic = tk.Label(AffineWin, text="IMG", width=360, height=240)
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image = ImageTk.PhotoImage(Image.fromarray(result))
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LabelPic.image = image
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LabelPic['image'] = image
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LabelPic.bind('<Configure>', lambda event: changeSize(event, result, LabelPic))
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LabelPic.pack(fill=tk.BOTH, expand=tk.YES)
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# 添加保存按钮
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btn_save = tk.Button(AffineWin, text="保存", bg='#add8e6', fg='black', font=('Helvetica', 14),
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width=20, command=savefile)
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btn_save.pack(pady=10)
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def turn(root):
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"""
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对图像进行翻转操作
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"""
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global src, TurnWin, edge
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if src is None:
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messagebox.showerror("错误", "没有选择图片！")
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return
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# 水平镜像
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horizontal = cv2.flip(src, 1)
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# 垂直镜像
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vertical = cv2.flip(src, 0)
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# 对角镜像
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cross = cv2.flip(src, -1)
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# 将三种翻转图像组合成一个图像进行显示
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combined = np.hstack((horizontal, vertical, cross))
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# 更新 edge 变量
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edge = Image.fromarray(combined)
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# 创建Toplevel窗口
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try:
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if TurnWin:
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TurnWin.destroy()
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except Exception as e:
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print("NVM")
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finally:
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TurnWin = Toplevel(root)
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TurnWin.attributes('-topmost', True)
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TurnWin.geometry("720x300")
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TurnWin.resizable(True, True)
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TurnWin.title("翻转结果")
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# 显示图像
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LabelPic = tk.Label(TurnWin, text="IMG", width=720, height=240)
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image = ImageTk.PhotoImage(Image.fromarray(combined))
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LabelPic.image = image
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LabelPic['image'] = image
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LabelPic.bind('<Configure>', lambda event: changeSize(event, combined, LabelPic))
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LabelPic.pack(fill=tk.BOTH, expand=tk.YES)
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# 添加保存按钮
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btn_save = tk.Button(TurnWin, text="保存", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=savefile)
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btn_save.pack(pady=10)
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def arithmetic(root):
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"""
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对图像进行算术变换操作
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"""
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global src, X, Y, ArithWin, img_label_first, img_label_second, edge
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final = None # 用于存储最终的算术运算结果
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def select_first_image():
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"""
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选择第一张图像
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"""
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global X, img_label_first
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ArithWin.attributes('-topmost', True) # 设置窗口为最上层
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img_path = filedialog.askopenfilename(filetypes=[("Image files", "*.jpg;*.png;*.bmp;*.jpeg")], parent=ArithWin)
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ArithWin.attributes('-topmost', False) # 恢复窗口最上层属性
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if img_path:
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img_path_fixed = os.path.normpath(img_path)
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img_temp = cv2.imdecode(np.fromfile(img_path_fixed, dtype=np.uint8), cv2.IMREAD_UNCHANGED)
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if img_temp is None:
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messagebox.showerror("错误", "无法读取图片，请选择有效的图片路径")
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return
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image = cv2.cvtColor(img_temp, cv2.COLOR_BGR2RGB) # 转换颜色空间
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img = Image.fromarray(image)
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img.thumbnail((100, 100)) # 缩略图
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img_tk = ImageTk.PhotoImage(img)
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img_label_first.configure(image=img_tk)
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img_label_first.image = img_tk
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else:
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messagebox.showerror("错误", "没有选择图片路径")
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X = image.copy()
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def select_second_image():
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"""
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选择第二张图像
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"""
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global Y, img_label_second
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ArithWin.attributes('-topmost', True) # 设置窗口为最上层
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img_path = filedialog.askopenfilename(filetypes=[("Image files", "*.jpg;*.png;*.bmp;*.jpeg")], parent=ArithWin)
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ArithWin.attributes('-topmost', False) # 恢复窗口最上层属性
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if img_path:
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img_path_fixed = os.path.normpath(img_path)
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img_temp = cv2.imdecode(np.fromfile(img_path_fixed, dtype=np.uint8), cv2.IMREAD_UNCHANGED)
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if img_temp is None:
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messagebox.showerror("错误", "无法读取图片，请选择有效的图片路径")
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return
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image = cv2.cvtColor(img_temp, cv2.COLOR_BGR2RGB) # 转换颜色空间
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img = Image.fromarray(image)
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img.thumbnail((100, 100)) # 缩略图
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img_tk = ImageTk.PhotoImage(img)
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img_label_second.configure(image=img_tk)
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img_label_second.image = img_tk
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else:
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messagebox.showerror("错误", "没有选择图片路径")
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Y = image.copy()
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def perform_operation(operation):
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"""
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执行图像算术运算
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"""
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nonlocal final
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if X is None or Y is None:
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messagebox.showerror("错误", "请选择两张图片")
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return
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# 调整Y图像的尺寸和通道数与X一致
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Y_resized = cv2.resize(Y, (X.shape[1], X.shape[0]))
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if len(X.shape) != len(Y_resized.shape):
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if len(X.shape) == 2:
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Y_resized = cv2.cvtColor(Y_resized, cv2.COLOR_BGR2GRAY)
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else:
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Y_resized = cv2.cvtColor(Y_resized, cv2.COLOR_GRAY2BGR)
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if operation == "add":
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final = cv2.add(X, Y_resized)
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elif operation == "sub":
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final = cv2.subtract(X, Y_resized)
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elif operation == "mult":
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final = cv2.multiply(X, Y_resized)
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show_result(final)
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def show_result(result_image):
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"""
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显示运算结果图像
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"""
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global edge # 更新全局变量 edge
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edge = Image.fromarray(result_image)
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result_window = Toplevel(root)
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result_window.attributes('-topmost', True)
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result_window.geometry("620x480")
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result_window.resizable(True, True)
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result_window.title("运算结果")
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LabelPic = tk.Label(result_window, text="IMG", width=720, height=240)
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image = ImageTk.PhotoImage(Image.fromarray(result_image))
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LabelPic.image = image
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LabelPic['image'] = image
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LabelPic.bind('<Configure>', lambda event: changeSize(event, result_image, LabelPic))
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LabelPic.pack(fill=tk.BOTH, expand=tk.YES)
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# 添加保存按钮
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btn_save = tk.Button(result_window, text="保存", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=savefile)
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btn_save.pack(pady=10)
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# 创建算术运算窗口
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try:
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if ArithWin:
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ArithWin.destroy()
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except Exception as e:
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print("NVM")
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finally:
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ArithWin = Toplevel(root)
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ArithWin.attributes('-topmost', True)
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ArithWin.geometry("720x480")
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ArithWin.resizable(True, True)
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ArithWin.title("选择运算类型")
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# 添加一个框架来容纳两个图像标签
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frame = tk.Frame(ArithWin)
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frame.pack(pady=10)
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img_label_first = tk.Label(frame)
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img_label_first.pack(side=tk.LEFT, padx=10)
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img_label_second = tk.Label(frame)
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img_label_second.pack(side=tk.RIGHT, padx=10)
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# 添加选择图像和运算按钮
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btn_select_first = tk.Button(ArithWin, text="选择第一张图片", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=select_first_image)
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btn_select_first.pack(pady=10)
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btn_select_second = tk.Button(ArithWin, text="选择第二张图片", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=select_second_image)
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btn_select_second.pack(pady=10)
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btn_add = tk.Button(ArithWin, text="加法", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=lambda: perform_operation("add"))
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btn_add.pack(pady=10)
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btn_sub = tk.Button(ArithWin, text="减法", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=lambda: perform_operation("sub"))
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btn_sub.pack(pady=10)
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btn_mult = tk.Button(ArithWin, text="乘法", bg='#add8e6', fg='black', font=('Helvetica', 14), width=20, command=lambda: perform_operation("mult"))
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btn_mult.pack(pady=10)
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