OpenCV TypeError:参数'src'的预期cv :: UMat是什么? [英] OpenCV TypeError: Expected cv::UMat for argument 'src' - What is this?

问题描述

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Disclaimer: huge openCV noob

回溯(最近通话最近一次):

Traceback (most recent call last):

canny = canny(lane_image)

文件"lanes2.py"，第5行，在canny中

File "lanes2.py", line 5, in canny

gray = cv2.cvtColor(imgUMat, cv2.COLOR_RGB2GRAY)

TypeError:预期参数'src'的cv :: UMat

TypeError: Expected cv::UMat for argument 'src'

'src'到底指的是什么?

What exactly is 'src' referring to?

推荐答案

src是cv2.cvtColor的第一个参数.

您遇到的错误是因为它的格式不正确. cv2.Umat()在功能上等同于np.float32()，因此您的最后一行代码应为:

The error you are getting is because it is not the right form. cv2.Umat() is functionally equivalent to np.float32(), so your last line of code should read:

gray = (np.float32(imgUMat), cv2.COLOR_RGB2GRAY)

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