MadFrog's profile - activity

The effect of using cv2.HoughLines() is wrong I refer to this link for experiments. This is the original picture： My

When I use cv2.UMat,an error has occured,how can I fix it?

I have installed CUDA.

My test code:

import cv2

print(cv2.ocl.haveOpenCL())#True
cv2.ocl.setUseOpenCL(True)
print(cv2.ocl.useOpenCL())#True
pic1 = r'dog.jpg'
img = cv2.imread(cv2.UMat(pic1))
cv2.imshow('test',img)
cv2.waitKey(0)

TypeError: no matching UMat constructor found/supported When I use cv2.UMat,an error has occured,how can I fix it? I h

OK!I just ask how to use acceleration, or what situations can accelerate and which functions can accelerate. For opencv'

What's the difference between cv2.imread(img) and cv2.imread(cv2.UMat(img))? What's the difference between the 2 ways of

What's the difference between cv2.imread(img) and cv2.imread(cv2.UMat(img))? What's the difference between the 2 ways of

What's the difference between cv2.imread(img) and cv2.imread(cv2.UMat(img))? What's the difference between the 2 ways of

@break I have already installed CUDA.And "print(cv2.ocl.haveOpenCL())" is "True".Then how to put numpy arrays into cv2.

I want to know whether opencv3 and python3 have GPU mode,I looked at this link and knew that there was no GPU mode when opencv2, but does opencv3 have GPU mode now?

Not deep learning, just the methods commonly used by opencv, is there a GPU mode?

@break print(cv2.ocl.haveOpenCL()) cv2.ocl.setUseOpenCL(True) So it starts? So it's speeding up?

@break How do I start OpenCL when I speed up? I have installed CUDA.

I want to know whether opencv3 and python3 have GPU mode? I want to know whether opencv3 and python3 have GPU mode,I loo

I only see this description in this link, it hasn't a very detailed explanation, so I'd like to know where can I find a more detailed explanation.The official web document says "Length of the history", what "Length of the history" is?

My code:

import os
import time
import cv2

def main():
    img_src_dirpath = r'C:/Users/Shinelon/Desktop/SRC/'
    dir = r'D:/deal_pics/' + time.strftime('%Y-%m-%d') + '/'
    if not os.path.exists(dir):
        os.makedirs(dir)
    img_dst_dirpath = dir
    history = 60
    varThreshold = 16
    detectShadows = True
    mog2 = cv2.createBackgroundSubtractorMOG2( history, varThreshold, detectShadows )
    for f in os.listdir( img_src_dirpath ):
        if f.endswith( '.jpg' ):
            img = cv2.imread( img_src_dirpath + f )
            mog2.apply( img )
            bg = mog2.getBackgroundImage()
            cv2.imwrite( img_dst_dirpath + f, bg )
    cv2.destroyAllWindows()

if __name__ == '__main__':
    main()

Anyway,thank you for your help,

Do you have the source code for this method? Or, for example, this parameter is 60, so is it means to generate a 61st fr

Do you have the source code for this method? Or, for example, this parameter is 60, so is it means to generate a 61st fr

Can you provide detailed information for this parameter? I have never found more.

What does the history of this function “createBackgroundSubtractorMOG2” means? I only see this description in this link,

What does the history of this function “createBackgroundSubtractorMOG2” means? I only see this description in this link,

What does the history of this function “createBackgroundSubtractorMOG2” means? I only see this description in this link,