本文实例讲述了python实现根据图标提取分类应用程序，分享给大家供大家参考。

具体方法如下：

#!/usr/bin/python 
# -*- coding: utf-8 -*- 
 
import Image
 
import win32ui 
import win32gui 
 
def make_regalur_image(img, size = (256, 256)): 
  return img.resize(size).convert(\'RGB\') 
 
def split_image(img, part_size = (64, 64)): 
  w, h = img.size 
  pw, ph = part_size 
   
  assert w % pw == h % ph == 0 
   
  return [img.crop((i, j, i+pw, j+ph)).copy() \\
      for i in xrange(0, w, pw) \\
      for j in xrange(0, h, ph)] 
 
def hist_similar(lh, rh): 
  assert len(lh) == len(rh) 
  return sum(1 - (0 if l == r else float(abs(l - r))/max(l, r)) for l, r in zip(lh, rh))/len(lh) 
 
def calc_similar(li, ri): 
#  return hist_similar(li.histogram(), ri.histogram()) 
  return sum(hist_similar(l.histogram(), r.histogram()) for l, r in zip(split_image(li), split_image(ri))) / 16.0 
       
 
def calc_similar_by_path(lf, rf): 
  li, ri = make_regalur_image(Image.open(lf)), make_regalur_image(Image.open(rf)) 
  return calc_similar(li, ri) 
 
def make_doc_data(lf, rf): 
  li, ri = make_regalur_image(Image.open(lf)), make_regalur_image(Image.open(rf)) 
  li.save(lf + \'_regalur.png\') 
  ri.save(rf + \'_regalur.png\') 
  fd = open(\'stat.csv\', \'w\') 
  fd.write(\'\\n\'.join(l + \',\' + r for l, r in zip(map(str, li.histogram()), map(str, ri.histogram())))) 
#  print >>fd, \'\\n\' 
#  fd.write(\',\'.join(map(str, ri.histogram()))) 
  fd.close() 
  import ImageDraw 
  li = li.convert(\'RGB\') 
  draw = ImageDraw.Draw(li) 
  for i in xrange(0, 256, 64): 
    draw.line((0, i, 256, i), fill = \'#ff0000\') 
    draw.line((i, 0, i, 256), fill = \'#ff0000\') 
  li.save(lf + \'_lines.png\') 
   
def getIcon(filename): 
 
  large, small = win32gui.ExtractIconEx(filename,0)# 
  win32gui.DestroyIcon(small[0]) 
   
  hdc = win32ui.CreateDCFromHandle( win32gui.GetDC(0) ) 
  hbmp = win32ui.CreateBitmap() 
  hbmp.CreateCompatibleBitmap( hdc, 32, 32 ) 
  hdc = hdc.CreateCompatibleDC() 
  hdc.SelectObject( hbmp ) 
  hdc.DrawIcon( (0,0), large[0] ) 
  hbmp.SaveBitmapFile( hdc, \"save.bmp\" ) 
     
if __name__ == \'__main__\': 
  #path = r\'test/TEST%d/%d.JPG\' 
  for i in range(1,4): 
    getIcon(r\'test/TEST1/%d.exe\' % i) 
    print \'RESULT:%d\' % (calc_similar_by_path(\'save.bmp\',r\"test/TEST1/backup.bmp\")*100) 
   
  #for i in xrange(1, 7): 
    #print \'test_case_%d: %.3f%%\'%(i, \\ 
      #calc_similar_by_path(\'test/TEST%d/%d.JPG\'%(i, 1), \'test/TEST%d/%d.JPG\'%(i, 2))*100) 
   
#  make_doc_data(\'test/TEST4/1.JPG\', \'test/TEST4/2.JPG\') 

希望本文所述对大家的Python程序设计有所帮助。