Python OCR extracts numbers from ordinary digital graphics validation

To intercept the graphics verification Code:

1 #-*-coding:utf-8-*-2 " "3 Created on July 4, 20164 5 @author: Xuxianglin6 " "7 ImportOS8 ImportTempfile9 ImportShutilTen  One  fromPILImportImage A  -PATH =LambdaP:os.path.abspath (P) -Temp_file = PATH (Tempfile.gettempdir () +"/temp_screen.png") the  - classAppium_extend (object): -     def __init__(self, driver): -Self.driver =Driver +  -     defget_screenshot_by_element (self, Element): +         #capture the entire screen first and store it in the system temp directory A self.driver.get_screenshot_as_file (temp_file) at  -         #get element bounds -Location =element.location -Size =element.size -box = (location["x"], location["y"], location["x"] + size["width"], location["y"] + size["Height"]) -  in         #Capturing Pictures -Image =Image.open (temp_file) toNewImage =image.crop (Box) + Newimage.save (temp_file) -  the         return Self *  $     defget_screenshot_by_custom_size (self, start_x, start_y, end_x, end_y):Panax Notoginseng         #Custom Intercept Range - self.driver.get_screenshot_as_file (temp_file) thebox =(start_x, start_y, end_x, end_y) +  AImage =Image.open (temp_file) theNewImage =image.crop (Box) + Newimage.save (temp_file) -  $         return Self $  -     defWrite_to_file (self, dirpath, imageName, form ="PNG"): -         #Copy the screenshot file to the specified directory the         if  notOs.path.isdir (dirpath): - os.makedirs (Dirpath)WuyiShutil.copyfile (Temp_file, PATH (Dirpath +"/"+ ImageName +"."+form)) the  -     defload_image (Self, image_path): Wu         #Load target image for comparison -         ifOs.path.isfile (image_path): AboutLoad =Image.open (image_path) $             returnLoad -         Else: -             RaiseException ("%s is not exist"%image_path) -  A     defsame_as (self, Load_image, percent): +         #compare picture, the percent value is set to 0, then 100% returns True when similar, the larger the value, the greater the difference the         ImportMath -         Importoperator $  theImage1 =Image.open (temp_file) theImage2 =Load_image the  theHISTOGRAM1 =Image1.histogram () -HISTOGRAM2 =Image2.histogram () in  thediffer = MATH.SQRT (reduce (Operator.add, list (map) (LambdaA, B: (a) **2,  theHISTOGRAM1, histogram2))/Len (histogram1)) About         ifDiffer <=percent: the             returnTrue the         Else: the             returnFalse

To invoke the change method in the anchor element:

1VCODE=SELF.DRIVER.FIND_ELEMENT_BY_ID ("com.ajb.sp:id/changepsw_code_img")2Self.extend.get_screenshot_by_element (Vcode). Write_to_file (".. \\resource\\vcode\\","Image")3Self.asserttrue (Os.path.isfile ('.. \\resource\\vcode\\image.png'))4Image=image.open ('.. \\resource\\vcode\\image.png')5Vcode_number=pytesseract.image_to_string (image)6   PrintU"the intercepted Captcha is:%s"%vcode_number

Python OCR extracts numbers from ordinary digital graphics validation