/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 vote169 views1 answer
Typecasting python
Python
0 vote158 views1 answer
Create matrice 2d whit 3colum panda
Python
0 vote213 views1 answer
Two input number sum in python
Python
0 vote171 views1 answer
Et.dump export file to xml write method
Python
65 votes163 views6 answers
Create venv windows
Python
0 vote197 views1 answer
Van first name van second name van last name
Python
0 vote156 views1 answer
Python replace list of ips from yaml file with new list
Python
4 votes180 views2 answers
Django queryset group by
Python
0 vote170 views1 answer
Check if any entries arte none
Python
6 votes147 views2 answers
Numpy random int
Python