使用Python PIL獲得的圖像

Question

我希望得到這個圖片中的數字，使用Python和PIL在顯示的數目：

我的代碼：

#!/usr/bin/env python 
#encoding=utf-8 

import Image,ImageEnhance,ImageFilter 
import Data 

DEBUG = False 

def d_print(*msg): 
    global DEBUG 
    if DEBUG: 
     for i in msg: 
      print(i), 
     print 
    else: 
     pass 


def Get_Num(l=[]): 
    min1 = [] 
    min2 = [] 
    print(l) 
    for n in Data.N: 
     count1=count2=count3=count4=0 
     if (len(l) != len(n)): 
      print("Wrong pic %s %s " %(len(l),len(n))) 
      exit() 
     for i in range(len(l)): 
      if (l[i] == 1): 
       count1+=1 
       if (n[i] == 1): 
        count2+=1 
     for i in range(len(l)): 
      if (n[i] == 1): 
       count3+=1 
       if (l[i] == 1): 
        count4+=1 
     d_print(count1,count2,count3,count4) 

     min1.append(count1-count2) 
     min2.append(count3-count4) 
    d_print(min1,"\n",min2) 
    for i in range(10): 
     if (min1[i] <= 2 or min2[i] <= 2): 
      if ((abs(min1[i] - min2[i])) < 10): 
       return i 
    for i in range(10): 
     if (min1[i] <= 4 or min2[i] <= 4): 
      if (abs(min1[i] - min2[i]) <= 2): 
       return i 

    for i in range(10): 
     flag = False 
     if (min1[i] <= 3 or min2[i] <= 3): 
      for j in range(10): 
       if (j != i and (min1[j] < 5 or min2[j] <5)): 
        flag = True 
       else: 
        pass 
      if (not flag): 
       return i 
    for i in range(10): 
     if (min1[i] <= 5 or min2[i] <= 5): 
      if (abs(min1[i] - min2[i]) <= 10): 
       return i 
    for i in range(10): 
     if (min1[i] <= 10 or min2[i] <= 10): 
      if (abs(min1[i] - min2[i]) <= 3): 
       return i 

#end of function Get_Num 

def Pic_Reg(image_name=None): 
    im = Image.open(image_name) 
    im = im.filter(ImageFilter.MedianFilter()) 
    enhancer = ImageEnhance.Contrast(im) 
    im = enhancer.enhance(5) 
    im = im.convert('1') 
    im.show() 
        #all by pixel 
    s = 6   #start postion of first number 
    w = 8   #width of each number 
    h = 15   #end postion from top 
    t = 2   #start postion of top 
    im_new = [] 
    #split four numbers in the picture 
    for i in range(4): 
     im1 = im.crop((s+w*i+i*2,t,s+w*(i+1)+i*2,h)) 
     im_new.append(im1.resize((int(10),int(13)), Image.ANTIALIAS)) 

    s = "" 
    for k in range(4): 
     l = [] 
     im_new[k].show() 
     for i in range(13): 
      for j in range(10): 
       if (im_new[k].getpixel((j,i)) == 255): 
        l.append(0) 
       else: 
        l.append(1) 
     s+=str(Get_Num(l)) 
    return s 
if __name__ == "__main__": 
    print(Pic_Reg("3.jpeg")) 

的代碼可以讀一些數字，但它並不完美。我需要更好的號碼識別。

Answer 1

PIL不是您想要使用的工具。你想要做的是執行圖像識別，這是一個典型的[並且非常複雜] AI任務。

執行此類操作的規範自由 - 在 - 自由庫是OpenCV，您可以找到python綁定文檔here。

BTW：針對驗證碼使用圖像的種類正因爲是非常難教機器如何識別這些數字的原因......它是Turing testing形式專門從機器人識別人類...