完整项目地址下载:https://github.com/rainbow-tan/rainbow/tree/master/%E8%A3%81%E5%89%AA%E5%9B%BE%E7%89%87
实现:tkinter 画布上显示图片,按下鼠标左键并且移动,实现截图
# -*- encoding=utf-8 -*- import os import tkinter as tk from PIL import Image from PIL import ImageTk left_mouse_down_x = 0 left_mouse_down_y = 0 left_mouse_up_x = 0 left_mouse_up_y = 0 sole_rectangle = None def left_mouse_down(event): # print("鼠标左键按下") global left_mouse_down_x, left_mouse_down_y left_mouse_down_x = event.x left_mouse_down_y = event.y def left_mouse_up(event): # print("鼠标左键释放") global left_mouse_up_x, left_mouse_up_y left_mouse_up_x = event.x left_mouse_up_y = event.y corp_img(img_path, "img/one_corp.png", left_mouse_down_x, left_mouse_down_y, left_mouse_up_x, left_mouse_up_y) def moving_mouse(event): # print("鼠标左键按下并移动") global sole_rectangle global left_mouse_down_x, left_mouse_down_y moving_mouse_x = event.x moving_mouse_y = event.y if sole_rectangle is not None: canvas.delete(sole_rectangle) # 删除前一个矩形 sole_rectangle = canvas.create_rectangle(left_mouse_down_x, left_mouse_down_y, moving_mouse_x, moving_mouse_y, outline="red") def right_mouse_down(event): # print("鼠标右键按下") pass def right_mouse_up(event): # print("鼠标右键释放") pass def corp_img(source_path, save_path, x_begin, y_begin, x_end, y_end): if x_begin < x_end: min_x = x_begin max_x = x_end else: min_x = x_end max_x = x_begin if y_begin < y_end: min_y = y_begin max_y = y_end else: min_y = y_end max_y = y_begin save_path = os.path.abspath(save_path) if os.path.isfile(source_path): corp_image = Image.open(source_path) region = corp_image.crop((min_x, min_y, max_x, max_y)) region.save(save_path) print("裁剪完成,保存于:{}".format(save_path)) else: print("未找到文件:{}".format(source_path)) if __name__ == "__main__": pass win = tk.Tk() frame = tk.Frame() frame.pack() screenwidth = win.winfo_screenwidth() screenheight = win.winfo_screenheight() img_path = "img/one.png" # img_path = "img/bg.jpg" # img_path = "img/test.jpg" # img_path = "img/pic.gif" image = Image.open(img_path) image_x, image_y = image.size if image_x > screenwidth or image_y > screenheight: print("The picture size is too big,max should in:{}x{}, your:{}x{}".format(screenwidth, screenheight, image_x, image_y)) img = ImageTk.PhotoImage(image) canvas = tk.Canvas(frame, width=image_x, height=image_y, bg="pink") i = canvas.create_image(0, 0, anchor="nw", image=img) canvas.pack() canvas.bind("<Button-1>", left_mouse_down) # 鼠标左键按下 canvas.bind("<ButtonRelease-1>", left_mouse_up) # 鼠标左键释放 canvas.bind("<Button-3>", right_mouse_down) # 鼠标右键按下 canvas.bind("<ButtonRelease-3>", right_mouse_up) # 鼠标右键释放 canvas.bind("<B1-Motion>", moving_mouse) # 鼠标左键按下并移动 win.mainloop()
原图one.png
运行
one_corp.png
以上就是python 实现图片裁剪小工具的详细内容,更多关于python 图片裁剪的资料请关注服务器之家其它相关文章!
原文链接:https://www.cnblogs.com/rainbow-tan/p/13898131.html