This Python script demonstrates how to use OpenCV to load an image, apply a blue tint to it, and display the result:

• The script begins by importing OpenCV and loading an image from the specified file path into the variable image using the cv2.imread() function.
• To create a blue tint effect, the script first makes a copy of the loaded image and assigns it to the variable blue_tint.
• Then, it sets the green and red color channels of the copied image to 0, effectively removing those colors. This is achieved by modifying the array representing the image: blue_tint[:, :, 1] = 0 sets the green channel to zero, and blue_tint[:, :, 2] = 0 sets the red channel to zero, leaving only the blue channel active.
• The resulting image, now tinted blue, is displayed in a window titled “Blue Tint Filter” using the cv2.imshow() function.
• The script waits for a key press with cv2.waitKey(0) before closing the display window using cv2.destroyAllWindows(). This approach allows users to visualize the applied blue tint effect interactively.