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Slitscan

Usage

Run the Python script and enjoy your weird motions. The second window will display your Slit Scan effect after a few seconds.

Content

1.) Import

import cv2
import numpy as np

2.) Setup

#capture
cap = cv2.VideoCapture(0)

h = 480
w = 640
cap.set(3,w)
cap.set(4,h)


cv2.namedWindow('background')
cv2.namedWindow('frame')
background = np.zeros((h, w, 3), np.uint8)

allFrames = []
counter = 0

3.) Add Magic

while(1):
    # read the frames
    success,frame = cap.read()
    if success:
        frame = cv2.flip(frame, flipCode=1)

        current_Frame =  frame[:]
        
        #add current_Frame
        allFrames.append(current_Frame)



        #first capture image
        if len(allFrames) > (h):
            for i in range(10,h):
                background[i] = allFrames[(counter-i)][i]

        counter+=1

        #show images
        cv2.imshow('background',background)
        cv2.imshow('frame',frame)

    #exit
    if cv2.waitKey(33)== 27:
        break



# Clean up everything before leaving
cv2.destroyAllWindows()
cap.release()

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The weird and beautiful effect of Slitscan

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