猫史档案馆

from tkinter import *
import tkinter.messagebox as message
import matplotlib.pyplot as plt
import tkinter.filedialog as file
from PIL import Image,ImageDraw
import sys,os

class MainWindow():
	def __init__(self):
		super().__init__()
		self.screen = Tk()
		self.setup()
		self.screen.geometry('550x150')
		self.screen.title('图片转字符串')
		self.screen.resizable(0,0)
	def setup(self):
		self.choose = Button(text='选择图片',width=20,command = self.choose_function)
		self.begin = Button(text='开始转换',width=20,command=self.pic_str)
		self.save = Button(text = '保存字符串图片',width=20,command=self.save_function)
		self.choose.place(x=30,y=10)
		self.begin.place(x=200,y=10)
		self.save.place(x=370,y=10)
	def choose_function(self):
		try:
			self.image_path = file.askopenfilename(filetypes=[('图片文件','*.png'),('图片文件','jpg')])
		except:
			message.showerror('错误','出错了')
			sys.exit()
	def pic_str(self):
		try:
			w, h = 60, 60
			self.img = Image.open(self.image_path).convert('L').resize((w, h))
			ASCII_HIGH = ('''$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/||()1{}[]?-_+~<>i!lI;:,\"^`'. ''')
			txt = ''
			self.img_new=Image.new('RGB',(w*12,h*15),'white')
			for y in range(h):
				for x in range(w):
					pos=(x,y)
					gray=self.img.getpixel(pos)
					index=int(gray/256*70)
					txt += ASCII_HIGH[index] +' '
				txt += '\n'
			draw=ImageDraw.Draw(self.img_new)
			self.screen.geometry('550x600')
			draw.text((0, 0), txt, fill='black')
			self.img_new.resize((500,500)).save("temp.gif")
			self.img_tk = PhotoImage(file='temp.gif')
			Label(image=self.img_tk,width=500,height=500).place(x=20,y=50)
			os.remove('temp.gif')
		except:
			message.showerror("错误",'出错了')
			sys.exit()
	def save_function(self):
		try:
			w, h = 60, 60
			path = file.asksaveasfilename()+'.jpg'
			self.img_new.resize((w*12, w*12)).save(path)
			message.showinfo('提示','保存成功 ^_^')
			plt.imshow(Image.open(path))
			plt.show()
		except:
			message.showerror("错误",'出错了')
			sys.exit()

if __name__ == '__main__':
	screen = MainWindow()
	mainloop()
	sys.exit()