python实现根据图标提取分类应用程序实例

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。