This is perhaps the most interesting application of seam carving. We can make an object completely disappear from an image. Let's consider the following image:

Let's select the region of interest:

After you remove the chair on the right, it will look something like this:

It's as if the chair never existed! Before we look at the code, it's important to know that this takes a while to run. So, just wait for a couple of minutes to get an idea of the processing time. You can adjust the input image size accordingly! Let's take a look at the code:

import sys

import cv2
import numpy as np

# Draw rectangle on top of the input image
def draw_rectangle(event, x, y, flags, params):
    global x_init, y_init, drawing, top_left_pt, bottom_right_pt, img_orig

    # Detecting a mouse click
    if event == cv2.EVENT_LBUTTONDOWN:
        drawing = True
        x_init, y_init = x, y

    # Detecting mouse movement
    elif event == cv2.EVENT_MOUSEMOVE:
        if drawing...