import cv2
# Read images
DATA_PATH = "data_set/data"
source = cv2.imread(f"{DATA_PATH}/this image doesn't exist.png")
target = cv2.imread(f"{DATA_PATH}/10226_bg_27794.png")
swap = cv2.imread(f"{DATA_PATH}/10226_sw_27794_19200.png")
mask = cv2.imread(f"{DATA_PATH}/10226_mask_27794_19200.png")
# mask = mask/255
center = (112, 112)
output_normal = cv2.seamlessClone(swap, target, mask, center, cv2.NORMAL_CLONE)
output_mixed = cv2.seamlessClone(swap, target, mask, center, cv2.MIXED_CLONE)

# Output
---------------------------------------------------------------------------
error                                     Traceback (most recent call last)
<ipython-input-3-faf121550370> in <module>
     10 # mask = mask/255
     11 center = (112, 112)
---> 12 output_normal = cv2.seamlessClone(swap, target, mask, center, cv2.NORMAL_CLONE)
     13 output_mixed = cv2.seamlessClone(swap, target, mask, center, cv2.MIXED_CLONE)

error: OpenCV(4.5.1) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-kh7iq4w7\opencv\modules\core\src\matrix.cpp:811: error: (-215:Assertion failed) 0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows in function 'cv::Mat::Mat'