Concatenate images

----------------------------------------------------------------------------------------------------

#Using ImageMagick
"C:\Program Files\ImageMagick-7.1.0-Q16-HDRI"\magick convert -adjoin image1.jpg image2.jpg -gravity center -append image_concat.jpg
#Ref: https://imagemagick.org/script/command-line-options.php#adjoin

----------------------------------------------------------------------------------------------------

#Using Python
#Install Python from https://www.python.org/downloads/ (note: if on Windows 7, can only install Python 3.8.10 or lower)
#C:\Python\Python38\Scripts\pip install Pillow or C:\Python\Python38\Scripts\python -m pip install Pillow
#Put image1.jpg and image2.jpg in the same folder as the following Python script. Run python command against the Python script.

C:\Python\Python38\python
from PIL import Image
im1=Image.open('image1.jpg')
im2=Image.open('image2.jpg')
def get_concat_v(im1, im2):
    dst = Image.new('RGB', (im1.width, im1.height + im2.height))
    dst.paste(im1, (0, 0))
    dst.paste(im2, (0, im1.height))
    return dst
get_concat_v(im1, im2).save('result.jpg')

#Ref: https://note.nkmk.me/en/python-pillow-concat-images/

----------------------------------------------------------------------------------------------------

#Another Python program

from PIL import Image
import sys
images = [Image.open(x) for x in ['image1.jpg', 'image2.jpg']]
widths, heights = zip(*(i.size for i in images))

#for horizontal merging:
#total_width = sum(widths)
#max_height = max(heights)
#new_im = Image.new('RGB', (total_width, max_height))
#x_offset = 0
#for im in images:
#  new_im.paste(im, (x_offset,0))
#  x_offset += im.size[0]

#for vertical merging:
max_width = max(widths)
total_height = sum(heights)
new_im = Image.new('RGB', (max_width, total_height))
y_offset = 0
for im in images:
  new_im.paste(im, (0,y_offset))
  y_offset += im.size[1]

new_im.save('result.jpg')

#Ref: https://stackoverflow.com/questions/30227466/combine-several-images-horizontally-with-python

----------------------------------------------------------------------------------------------------