| import subprocess | |
| import sys | |
| from PIL import Image | |
| # Read the filename from the command line args | |
| filename = sys.argv[1] | |
| # Read in the image | |
| image = Image.open(filename) | |
| # Get with, height | |
| width, height = image.size | |
| print('Width: ' + str(width)) | |
| print('Height: ' + str(height)) | |
| # Calculate current aspect ratio of the image | |
| aspect_ratio = width / height | |
| # Define the desired aspect ratio. Insta allows max 4:5 so we'll use this here. | |
| desired_aspect_ratio = 4 / 5 | |
| # The equation to determine how much border (padding) we need left + right | |
| # (width + x) / height = desired_aspect_ratio | |
| # x = desired_aspect_ratio * height - width | |
| padding = desired_aspect_ratio * height - width | |
| print('Padding: ' + str(padding)) | |
| # Calling the convert script, divide padding by two because it'll be added left and right. | |
| subprocess.call(['convert', filename, '-bordercolor', 'white', '-border', str(padding/2) + 'x0', filename + '.edited.jpg']) |