Python图像处理中的形态运算(关闭)|S2

在上一篇文章中, 指定了Opening运算符, 该运算符在膨胀后执行腐蚀操作。它有助于消除图像中的内部噪点。闭幕与打开操作类似。在关闭操作中, 基本前提是关闭是反向执行的。它被简单地定义为扩张后侵蚀使用与打开操作相同的结构元素。

语法：cv2.morphologyEx(image, cv2.MORPH_CLOSE, kernel)参数：-> image：输入图像数组。 -> cv2.MORPH_CLOSE：应用形态学关闭操作。 ->内核：结构元素。

以下是解释关闭形态运算的Python代码-

# Python programe to illustrate
# Closing morphological operation
# on an image
  
# organizing imports  
import cv2  
import numpy as np  
  
# return video from the first webcam on your computer.  
screenRead = cv2.VideoCapture( 0 )
  
# loop runs if capturing has been initialized.
while ( 1 ):
     # reads frames from a camera
     _, image = screenRead.read()
      
     # Converts to HSV color space, OCV reads colors as BGR 
     # frame is converted to hsv
     hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
      
     # defining the range of masking
     blue1 = np.array([ 110 , 50 , 50 ])
     blue2 = np.array([ 130 , 255 , 255 ])
      
     # initializing the mask to be
     # convoluted over input image
     mask = cv2.inRange(hsv, blue1, blue2)
  
     # passing the bitwise_and over
     # each pixel convoluted
     res = cv2.bitwise_and(image, image, mask = mask)
      
     # defining the kernel i.e. Structuring element
     kernel = np.ones(( 5 , 5 ), np.uint8)
      
     # defining the closing function 
     # over the image and structuring element
     closing = cv2.morphologyEx(mask, cv2.MORPH_OPEN, kernel)
     
     # The mask and closing operation
     # is shown in the window 
     cv2.imshow( 'Mask' , mask)
     cv2.imshow( 'Closing' , closing)
      
     # Wait for 'a' key to stop the program 
     if cv2.waitKey( 1 ) & 0xFF = = ord ( 'a' ):
         break
  
# De-allocate any associated memory usage  
cv2.destroyAllWindows()
  
# Close the window /Release webcam 
screenRead.release()

输入框：

面具：

输出如下：

首先, 你的面试准备可通过以下方式增强你的数据结构概念：Python DS课程。