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python numpy + opencv + overlay image

julkarnine answered on April 12, 2021 Popularity 2/10 Helpfulness 1/10

answer python numpy + opencv + overlay image

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python numpy + opencv + overlay image

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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)

Popularity 2/10 Helpfulness 1/10 Language python

Source: stackoverflow.com

Tags: image numpy opencv overlay python

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Contributed on Apr 12 2021

julkarnine

0 Answers Avg Quality 2/10

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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

Popularity 2/10 Helpfulness 1/10 Language python

Source: stackoverflow.com

Tags: image opencv numpy python overlay

Link to this answer
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Contributed on Apr 12 2021

julkarnine

0 Answers Avg Quality 2/10

python numpy + opencv + overlay image

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