m3rt's profile - activity

Trying to extract three RGB values

• (255, 255, 0)
• (0, 0, 255)
• (255, 0, 0)

via thresholding in a live video, but couldn't make it work by using inRange. How can it be done? Not asking for code (samples would be great), but some direction to search for.

Thanks in advance.

Forgot to mention that I'm using Python 3. Your answer can provide a map for the solution, teşekkürler ilginize.

Hi; I am trying to detect all squares colors in a picture below -but in a live video-. By using simple blob detector, the program can get 16 squares most of the time and gets color values mostly correct, but it finds blobs other than this area for now. How can I prevent finding other blobs that are not needed?

1-Can it be done like this; When program sees 16 squares in a certain area, it would focus on that area and ignore other blobs.

I am kinda new to OpenCV and I am still learning stuff. Thanks in advance.

Hi everyone;

I am trying to detect white circle (yes, just one) on video capture. I have converted the frame to HSV and by using inRange, the program can detect white pixels now in Python 3. But, I need to detect pixels if they are a circle. How can I do that? With Hough circle transform?

Thanks in advance.

Hi; I need to detect colors of 4x4 matrices. I was doing it with simpleBlobDetector for now, finding blobs, getting coordinates and recognizing color at last in Python. So my question: is there a better way of doing this?

Thanks in advance.

Thanks for your response. I think your answer is valid for C language, I was looking for Python.

It's really easy than my thought. Thank you, it works!

Not by clicking, coordinates come from blob detector as keypoints for x and y axis.

Hello, everyone!

I need to get color values(HEX) of specific pixels from live video capture. I have used simpleBlobDetector to get coordinates with Python. How can I do it?

Thanks in advance.

Note: I am kinda new to opencv and forum. If I had ask question in not a proper way, please warn.