我希望你做得很好。我想洗掉影像中的鐘形曲線。我用過 OpenCV。我已經實作了以下檢測曲線形狀的代碼，現在如何洗掉該曲線形狀并將新影像保存在檔案夾中。
import cv2
import numpy as np
# read image
img = cv2.imread('the_image.jpg')
ht, wd = img.shape[:2]
# convert to grayscale
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
# threshold
thresh = cv2.threshold(gray, 0, 255, cv2.THRESH_BINARY cv2.THRESH_OTSU)[1]
# get external contours
contours = cv2.findContours(thresh, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
contours = contours[0] if len(contours) == 2 else contours[1]
max_aspect=0
for cntr in contours:
x,y,w,h = cv2.boundingRect(cntr)
aspect = w/h
if aspect > max_aspect:
max_aspect = aspect
max_contour = cntr
# create mask from max_contour
mask = np.zeros((ht,wd), dtype=np.uint8)
mask = cv2.drawContours(mask, [max_contour], 0, (255), -1)
# dilate mask
kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (3,3))
mask = cv2.morphologyEx(mask, cv2.MORPH_DILATE, kernel)
# invert mask
mask = 255 - mask
# mask out region in input
result = img.copy()
result = cv2.bitwise_and(result, result, mask=mask)
# save resulting image
cv2.imwrite('the_image_masked.png',result)
# show thresh and result
cv2.imshow("mask", mask)
cv2.imshow("result", result)
cv2.waitKey(0)
cv2.destroyAllWindows()
結果：
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