带有 cv2 的运动图像

Question

I applied the image to the background, but I can't figure out how to move it around.

That's more or less what it looks like:

This is my code (I take it from here ):

# GUI
background = cv2.imread('BG2.png')
overlay = cv2.imread('beacon.png')
rows,cols,channels = overlay.shape
overlay=cv2.addWeighted(background[250:250+rows, 0:0+cols],0.5,overlay,0.5,0)
background[250:250+rows, 0:0+cols ] = overlay

# Display the image
cv2.imshow("Composited image", background)
cv2.waitKey(0)

I would like to be able to move the dot in real time, but I can't change its position.

Just overlaying the images took me a while. I checked the code from these topics before, but none worked:

1. Tkinter, overlay foreground image on top of a background image with transparency

2. How to merge a transparent png image with another image using PIL

3. How do I generate circular thumbnails with PIL?

Answer 1

If you want to carry out image transformations only by means of cv2, use affine transformations: cv2.warpAffine