我正在努力识别皮肤斑点.为此,我使用了许多具有不同噪声的图像.这些噪音中的一个是毛发,因为我在污渍区域(ROI)上有毛发的图像.如何减少或消除这些类型的图像噪音？
下面的代码减少了毛发的区域,但不会去除感兴趣区域(ROI)上方的毛发.
import numpy as np
import cv2
IMD = 'IMD436'
# Read the image and perfrom an OTSU threshold
img = cv2.imread(IMD+'.bmp')
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
ret, thresh = cv2.threshold(gray,0,255,cv2.THRESH_BINARY_INV+cv2.THRESH_OTSU)
# Remove hair with opening
kernel = np.ones((2,2),np.uint8)
opening = cv2.morphologyEx(thresh,cv2.MORPH_OPEN,kernel, iterations = 2)
# Combine surrounding noise with ROI
kernel = np.ones((6,6),np.uint8)
dilate = cv2.dilate(opening,kernel,iterations=3)
# Blur the image for smoother ROI
blur = cv2.blur(dilate,(15,15))
# Perform another OTSU threshold and search for biggest contour
ret, thresh = cv2.threshold(blur,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU) …