System information (version)

Example

• OpenCV => 3.4.2 and 4.2
• Operating System / Platform => Windows 64 Bit
• Compiler => python 3.6

Detailed description

I generated the example of the function HoughLinesPointSet in python and there is an issue in the function cv::Mat::copyTo which generates the issue: error: (-215:Assertion failed) channels() == ((((dtype) & ((512 - 1) << 3)) >> 3) + 1)

I think the function copyTo confuses the channels of the points in the numpy types (dtype).

Steps to reproduce

import cv2
import numpy as np

point = np.array([[0.0,   369.0], [10.0,  364.0]], np.float32)

rhoMin = 0.0
rhoMax = 360.0
rhoStep = 1
thetaMin = 0.0 
thetaMax = np.pi / 2.0 
thetaStep = np.pi / 180.0
lines_max = 2
threshold = 1
lines = cv2.HoughLinesPointSet(point, lines_max, threshold, rhoMin, rhoMax, rhoStep, thetaMin, thetaMax, thetaStep)

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues,
  answers.opencv.org, Stack Overflow, etc and have not found solution
• I updated to latest OpenCV version and the issue is still there