I've made some CAPTCHA reader and maker in Python using Tkinter. Do you know if it's possible to keep image and output files in "memory" not writing them on disc? Because right now everything is 'stiffly' made. And what would you do differently?
gui.py
import tkinter as tk
from PIL import Image, ImageTk
import captcha_maker as captcha
import captcha_reader as cap
class MainApplication(tk.Frame):
"""Main window"""
def __init__(self, parent):
tk.Frame.__init__(self, parent)
self.create_widgets()
def create_widgets(self):
"""Creating widgets"""
self.input_label = tk.Label(self, text="Text: ")
self.input_text = tk.Entry(self)
self.input_button = tk.Button(self, text="Generate captcha",
command=self.make_captcha)
self.img = ImageTk.PhotoImage(Image.open('bin/blank'))
self.image_label = tk.Label(self, image= self.img)
self.image_label.image = self.img
self.strings = tk.StringVar()
self.read_button = tk.Button(self, text="Read captcha",
command=self.read_captcha)
self.output_text = tk.Label(self, textvariable=self.strings)
self.input_label.grid(row=0, column=0)
self.input_text.grid(row=0, column=1)
self.input_button.grid(row=1, column=0)
self.image_label.grid(row=1, column=1)
self.read_button.grid(row=2, column=0)
self.output_text.grid(row=2, column=1)
def make_captcha(self):
captcha.make(self.input_text.get())
self.img2 = ImageTk.PhotoImage(Image.open('bin/result'))
self.image_label.configure(image=self.img2)
self.image_label.image = self.img
def read_captcha(self):
cap.read()
with open('bin/output.txt', 'r') as f:
read_data = f.read().rstrip()
self.strings.set(read_data)
if __name__ == "__main__":
root = tk.Tk()
MainApplication(root).grid()
root.mainloop()
captcha_maker.py
from PIL import Image, ImageDraw, ImageFont, ImageTk
import io
def make(text):
"""Making simple and regular captcha"""
im = Image.new("RGB", (len(text) * 13 , 27), "white")
im.save('bin/blank', "png")
base = Image.open('bin/blank').convert('RGBA')
txt = Image.new('RGBA', base.size, (255,255,255,0))
fnt = ImageFont.truetype('bin/Ubuntu-B.ttf', 24)
d = ImageDraw.Draw(txt)
d.text((0,0), text, font=fnt, fill=(0,0,0,255))
out = Image.alpha_composite(base, txt)
out.save("bin/result", "png")
if __name__ == ("__main__"):
make("one")
captcha_reader.py
import subprocess
def read():
"""Just calling tesseract command from python"""
subprocess.call(["tesseract", "bin/result", "bin/output"])
if __name__ == "__main__":
read()
