Расширение изображения с помощью Python ⇐ Python

[Anonymous]

Я пытаюсь выполнить фрагмент кода, который нашел в Интернете, и он выдает следующую ошибку:

Код: Выделить всё

 in image_masking(filepath)
15         gray = cv2.imread(filepath,0)
16         edges = cv2.Canny(gray, CANNY_THRESH_1, CANNY_THRESH_2)
---> 17         edges = cv2.dilate(edges,None)
18         edges = cv2.erode(edges, None)
19

error: OpenCV(3.4.1) C:\Miniconda3\conda-bld\opencv-
suite_1533128839831\work\modules\core\src\matrix.cpp:760: error: (-215)
dims  0 in function cv::Mat::locateROI

код:

Код: Выделить всё

import cv2
import numpy as np

def image_masking(filepath):

BLUR = 21
CANNY_THRESH_1 = 100
CANNY_THRESH_2 = 100
MASK_DILATE_ITER = 10
MASK_ERODE_ITER = 10
MASK_COLOR = (0.0,0.0,0.0) # In BGR format

gray = cv2.imread(filepath,0)
edges = cv2.Canny(gray, CANNY_THRESH_1, CANNY_THRESH_2)
edges = cv2.dilate(edges,None)
edges = cv2.erode(edges, None)
contour_info = []
_, contours, __ = cv2.findContours(edges, cv2.RETR_LIST, cv2.CHAIN_APPROX_NONE)

for c in contours:
contour_info.append((c, cv2.isContourConvex(c), cv2.contourArea(c),))
contour_info = sorted(contour_info, key=lambda c: c[2], reverse=True)

max_contour = contour_info[0]
for c in contour_info:
cv2.fillConvexPoly(mask, c[0], (255))
mask = cv2.dilate(mask, None, iterations=MASK_DILATE_ITER)
mask = cv2.erode(mask, None, iterations=MASK_ERODE_ITER)
mask = cv2.GaussianBlur(mask, (BLUR, BLUR), 0)

mask_stack = np.dstack([mask]*3)
mask_stack  = mask_stack.astype('float32') / 255.0
img = img.astype('float32') / 255.0

masked = (mask_stack * img) + ((1-mask_stack) * MASK_COLOR)
masked = (masked * 255).astype('uint8')

fileName, fileExtension = filepath.split('.')
fileName += '-masked.'
filepath = fileName + fileExtension
print(filepath)

cv2.imwrite(filepath, masked)

if __name__ == '__main__':
filepath = 'C:\\Users\HP\Downloads\test3.jpg'
image_masking(filepath)

Я пробовал заменить None в функции расширения на ядро, но выдает ту же ошибку

Подробнее здесь: https://stackoverflow.com/questions/550 ... ith-python