lchunleo's profile - activity

Hi all

i am trying to create many samples using the perl script by Nataoshi to create 500 samples using positive images of quantity 6 and negative images of quantity 8. However the created output is a folder of 6 images . It seems not what i have expected which i thought i am supposed to get 500 images (or vector file)?

Hi

When detecting a square object, i noted that when i used cv2.findContours which i have set to cv2.CHAIN_APPROX_SIMPLE, why the resulting contours contains more than 4 points? i noted that the drawing is correct as it perimeter along the square object but the fact it have more than 4 points puzzle me.

Wish to know if there is any case which Haar Cascade classifier is more suitable compare to CNN (Convolutional Neural Net)?

thanks for replying. i had: 1) checked with VLC, the VLC shows the camera is working. 2) i tried the camera with another of my notebook and it is working with the code. 3) i tried the camera again on my current machine and it does not work. i noted that that the code need to execute many times until suddenly the camera is able to show up in the frame. but then if i restart the code, it does not work, i have to restart it many times until the video is show again...i still don't know why it does so

Hi all,

After doing many rounds of googling, i have no choice but to post my question. I trying to do a videocapture with opencv 3.1.0, windows 7 and external logictech webcam C110. But i have encountered a black screen. i debugged and noted that the videocapture returns an array of 0. i indicated 0 for the camera id.

Anyone can advice? thank you