#!/usr/bin/env python
# -*- encoding: utf-8 -*-
'''
[url=home.php?mod=space&uid=267492]@file[/url]    :   RWM.py
[url=home.php?mod=space&uid=238618]@Time[/url]    :   2021/11/25 19:25:55
[url=home.php?mod=space&uid=686208]@AuThor[/url]  :   Ljujl 
[url=home.php?mod=space&uid=1248337]@version[/url] :   1.0
@Contact :   [url=mailto:mr_liu133299@foxmail.com]mr_liu133299@foxmail.com[/url]
'''
 
# here put the import lib
 
from os import path
from tkinter import (BOTH, BROWSE, EXTENDED, INSERT, Button, Frame, Label,
                     Text, Tk, filedialog, mainloop, messagebox)
from PIL import Image, ImageTk
 
 
class Remove_watermark():
    def __init__(self) -> None:
 
        self.root = Tk()
        self.root.title("去水印大师")
        x = (self.root.winfo_screenwidth() - self.root.winfo_reqwidth()) // 4
        y = (self.root.winfo_screenheight() - self.root.winfo_reqheight()) // 4
        self.root.geometry(f"{x}x{y}")
        self.frame = Frame(self.root).grid(row=0, column=0)
        self.old_pic_frame = Frame(self.root).grid(row=1, column=0)
        self.new_pic_frame = Frame(self.root).grid(row=1, column=1)
        self.width = 10
        btn_open = Button(self.frame, text="打开图片", width=self.width, height=1, command=self.open_pic,).grid(
            row=0, column=0)  #
        label_white = Label(self.frame, text="", height=1, width=self.width).grid(
            row=0, column=1)
        btn_process = Button(self.frame, text="角落水印", width=self.width, height=1, command=self.process,).grid(
            row=0, column=2)  #
        label_white = Label(self.frame, text="", height=1, width=self.width).grid(
            row=0, column=3)
        btn_process = Button(self.frame, text="文档水印", width=self.width,
                             height=1, command=self.process_all,).grid(row=0, column=4)
 
    def open_pic(self):
        global img
        self.screenwidth = self.root.winfo_screenwidth()
        self.screenheight = self.root.winfo_screenheight()
        self.root.geometry(
            f"{self.screenwidth}x{self.screenheight}+0+0")
        self.filepath = filedialog.askopenfilename(title='选择图片', filetypes=[
            ('图片', ['*.jpg', '*.png', '*.gif'])])
        img_open = Image.open(fp=self.filepath).convert("RGB")
        self.img_width, self.img_height = img_open.size
        print(self.img_width, self.img_height)
        self.rate = self.img_width / self.img_height
        # 如果图片高度过高则进行缩小
        if self.img_height > self.screenheight * 0.5:
            width = int(0.5 * self.screenwidth)
            height = int(width / self.rate)
            img = ImageTk.PhotoImage(
                image=img_open.resize(size=(width, height)))
        else:
            img = ImageTk.PhotoImage(img_open)
        label_img = Label(self.old_pic_frame, image=img).grid(row=1, column=1)
 
    def process(self):
        """处理右下角水印"""
        global new_img
        im = Image.open(self.filepath).convert("RGB")
        right_bottom = 4  # 右下角水印位置
        for w in range(self.img_width//4, self.img_width):
            for h in range(self.img_height//4, self.img_height):
                pos = (w, h)
                if sum(im.getpixel(pos)[:3]) > 600:
                    im.putpixel(pos, (255, 255, 255))
        new_pic_path = path.dirname(
            self.filepath) + "/去水印_" + path.basename(self.filepath)
        im.save(new_pic_path)
        img_open = Image.open(fp=new_pic_path)
        # 如果图片高度过高则进行缩小
        if self.img_height > self.screenheight * 0.5:
            width = int(0.5 * self.screenwidth)
            height = int(width / self.rate)
            new_img = ImageTk.PhotoImage(
                image=img_open.resize(size=(width, height)))
        else:
            new_img = ImageTk.PhotoImage(img_open)
 
        label_img_new = Label(self.new_pic_frame, image=new_img).grid(
            row=1, column=2)
        messagebox.showinfo('温馨提示', "完成去除水印啦(:")
 
    def process_all(self):
        global new_img
        im = Image.open(self.filepath).convert("RGB")
        width, height = im.size
 
        for w in range(width):
            for h in range(height):
                pos = (w, h)
                r, g, b = im.getpixel(pos)[:3]
                avg = (r + g + b) / 3
                limit = 0.10
                if avg > 100 and abs((r-avg)/avg) < limit and abs((g-avg)/avg) < limit and abs((b-avg)/avg) < limit:
                    im.putpixel(pos, (255, 255, 255))
        new_pic_path = path.dirname(
            self.filepath) + "/去水印_" + path.basename(self.filepath)
        im.save(new_pic_path)
        img_open = Image.open(fp=new_pic_path).convert("RGB")
 
        # 如果图片高度过高则进行缩小
        if self.img_height > self.screenheight * 0.5:
            width = int(0.5 * self.screenwidth)
            height = int(width / self.rate)
            new_img = ImageTk.PhotoImage(
                image=img_open.resize(size=(width, height)))
        else:
            new_img = ImageTk.PhotoImage(img_open)
        label_img_new = Label(
            self.new_pic_frame, image=new_img).grid(row=1, column=2)  # , columnspan=3,sticky="EW",
        messagebox.showinfo('温馨提示', "完成去除水印啦(:")
 
 
if __name__ == "__main__":
    main = Remove_watermark()
    img = None
    new_img = None
    mainloop()

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