作用:删除图像的小的干扰项
源代码如下:
# -*- coding=GBK -*- import cv2 as cv #图像的开闭操作 def open_image(image): gray = cv.cvtColor(image, cv.COLOR_BGR2GRAY) ret, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU) cv.imshow("二值化", binary) kernel = cv.getStructuringElement(cv.MORPH_RECT, (5, 5)) binary = cv.morphologyEx(binary, cv.MORPH_OPEN, kernel) cv.imshow("开操作", binary) def close_image(image): gray = cv.cvtColor(image, cv.COLOR_BGR2GRAY) ret, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU) kernel = cv.getStructuringElement(cv.MORPH_RECT, (5, 5)) binary = cv.morphologyEx(binary, cv.MORPH_CLOSE, kernel) cv.imshow("闭操作", binary) src = cv.imread("C://1.jpg") cv.imshow("原来", src) open_image(src) close_image(src) cv.waitKey(0) cv.destroyAllWindows()
运行结果如下: