Traceback (most recent call last):
File "D:/Python/测试专用文件夹/opencv测试.py", line 17, in
cv2.imshow('saf', img)
cv2.error: OpenCV(4.1.0) C:/projects/opencv-python/opencv/modules/highgui/src/precomp.hpp:131: error: (-215:Assertion failed) src_depth != CV_16F && src_depth != CV_32S in function 'convertToShow' 错误代码
import cv2
import numpy as np
from scipy import ndimage
import time
l=10
a=[]
for i in range(10):
a.append([250, 10, 50])
b=[]
for i in range(10):
b.append(a)
print(b)
img = np.array(b)
img *= 250
cv2.imshow('saf', img)
cv2.waitKey(0)
报错内容
cv2.error: OpenCV(4.1.0) C:/projects/opencv-python/opencv/modules/highgui/src/precomp.hpp:131: error: (-215:Assertion failed) src_depth != CV_16F && src_depth != CV_32S in function 'convertToShow'
错误原因
次像素的数据格式有要求，可以指定dtype=np.uint8或者dtype=np.float32
完整代码
import cv2
import numpy as np
l = 10
a = []
for i in range(500):
a.append([120, 10, 50])
b = []
for i in range(500):
b.append(a)
print(b)
img = np.array(b, dtype=np.uint8)
cv2.imshow('saf', img)
cv2.waitKey(0)
