/Python/Python numpy + opencv + overlay image

Python numpy + opencv + overlay image

import cv2

background = cv2.imread('field.jpg')
overlay = cv2.imread('dice.png')

added_image = cv2.addWeighted(background,0.4,overlay,0.1,0)

cv2.imwrite('combined.png', added_image)

Source: stackoverflow.com

Python numpy + opencv + overlay image

import cv2
import numpy as np

def overlay_transparent(background, overlay, x, y):

    background_width = background.shape[1]
    background_height = background.shape[0]

    if x >= background_width or y >= background_height:
        return background

    h, w = overlay.shape[0], overlay.shape[1]

    if x + w > background_width:
        w = background_width - x
        overlay = overlay[:, :w]

    if y + h > background_height:
        h = background_height - y
        overlay = overlay[:h]

    if overlay.shape[2] < 4:
        overlay = np.concatenate(
            [
                overlay,
                np.ones((overlay.shape[0], overlay.shape[1], 1), dtype = overlay.dtype) * 255
            ],
            axis = 2,
        )

    overlay_image = overlay[..., :3]
    mask = overlay[..., 3:] / 255.0

    background[y:y+h, x:x+w] = (1.0 - mask) * background[y:y+h, x:x+w] + mask * overlay_image

    return background

Source: stackoverflow.com

Similar codes

0 vote106 views1 answer
For loop pattern in python stack overflow
Python
0 vote116 views1 answer
How long is the pyautogui script
Python
3 votes118 views3 answers
Qlabel click python
Python
0 vote73 views1 answer
Python search file in directory
Python
22 votes109 views5 answers
Python palindrome check
Python
0 vote129 views1 answer
Sonido sfr200a
Python
0 vote114 views1 answer
Python ai for stock trading
Python
0 vote112 views1 answer
How to update values in tkinter
Python
0 vote117 views1 answer
Expand alphabets in python
Python
20 votes115 views6 answers
Python append to list
Python