Shift image content with OpenCV

Question

Starting from an image, I would like to shift its content upward of 10 pixels, without changing size and filling in black the sub image (width x 10px) on the bo

Answer 1

this link maybe help this question, thanks

import cv2
import numpy as np
img = cv2.imread('images/input.jpg')
num_rows, num_cols = img.shape[:2]   

translation_matrix = np.float32([ [1,0,70], [0,1,110] ])   
img_translation = cv2.warpAffine(img, translation_matrix, (num_cols, num_rows))   
cv2.imshow('Translation', img_translation)    
cv2.waitKey()

and tx and ty could control the shift pixels on x and y direction respectively.