/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 vote307 views1 answer
Qcut and cut function in python stack overflow
Python
1 vote280 views1 answer
Sorting by second element
Python
0 vote300 views1 answer
Kinesis Client put_record
Python
0 vote288 views1 answer
Tensorflow Dense layer activatity leaklyrelu
Python
6 votes285 views2 answers
How to change background of tkinter window
Python
1 vote324 views1 answer
Updating many to many field in django using pk
Python Django
0 vote280 views1 answer
How to create new header of a dataframe in python
Python
31 votes276 views5 answers
How to loop through files in a directory python
Python
0 vote294 views1 answer
Log of number python
Python
0 vote270 views1 answer
Nlp = spacy.load('en') error
Python