Final Fit of Logo in OpenCV

Final Fit of Logo means resizing and placing a logo so it stays clear and proportional when the frame size changes. It prevents blurring by adjusting the logo size and position dynamically using the cv2.resize() method with a scaling factor.

cv2.resize()

Below is the syntax for resize() function:

cv.resize(src, dsize)

Parameters:

• src: Input image (video frame or logo)
• dsize: Tuple (width, height) for new size

Python Implementation

The following code demonstrates how to maintain a logo’s size and position dynamically while resizing the frame. The logo is automatically scaled and placed at the top-right corner of the live webcam feed.

Output

The webcam feed displays the logo at the top-right corner, and it automatically resizes and repositions according to the frame size.

Explanation:

• cv.resize() is used to resize both the frame and the logo proportionally.
• The logo’s width and height are calculated as percentages of the current frame (logo_height = 12%, logo_width = 18%).
• margin_left and margin_top ensure the logo stays inside the top-right corner without overflowing.
• Reloading the logo every frame preserves quality, preventing blurriness when resizing.
• Press 'w' or 's' to increase or decrease the frame size interactively; the logo adapts automatically.