How to merge JPG to JPG programmatically

Compose horizontal layout

Aspose.Imaging allows to process JPG to JPG programmatically using Aspose.Imaging API. Below example shows how to perform JPG to JPG horizontal merge

import aspose.pycore as aspycore
from aspose.imaging import Image, Rectangle, RasterImage
from aspose.imaging.imageoptions import JpegOptions
from aspose.imaging.sources import FileCreateSource
from aspose.imaging.fileformats.jpeg import JpegImage
import os

if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder
image_paths = [os.path.join(data_dir, "template.jpg"), 
			   os.path.join(data_dir, "template.jpeg")]
output_path = os.path.join(data_dir, "result.jpg")
temp_file_path = os.path.join(data_dir, "temp.jpg")
# Getting resulting image size.
image_sizes = []
for image_path in image_paths:
	with Image.load(image_path) as image:
		image_sizes.append(image.size)

new_width = 0
new_height = 0
for size in image_sizes:
	new_width += size.width
	new_height = max(new_height, size.height)
	
# Combining images into new one.
temp_file_source = FileCreateSource(temp_file_path, delete_output)
with JpegOptions() as options:
	options.source = temp_file_source
	options.quality = 100
	with aspycore.as_of(Image.create(options, new_width, new_height), JpegImage) as new_image:
		stitched_width = 0
		for image_path in image_paths:
			with aspycore.as_of(Image.load(image_path), RasterImage) as image:
				bounds = Rectangle(stitched_width, 0, image.width, image.height)
				new_image.save_argb_32_pixels(bounds, image.load_argb_32_pixels(image.bounds))
				stitched_width += image.width
		new_image.save(output_path)

if delete_output:
	os.remove(output_path)
	if os.path.exists(temp_file_path):
		os.remove(temp_file_path)

Compose vertical layout

Below example shows how to perform JPG to JPG vertical merge

import aspose.pycore as aspycore
from aspose.imaging import Image, Rectangle, RasterImage
from aspose.imaging.imageoptions import JpegOptions
from aspose.imaging.sources import StreamSource
from aspose.imaging.fileformats.jpeg import JpegImage
from aspose.imaging.extensions import StreamExtensions
import os
import functools

if 'TEMPLATE_DIR' in os.environ:
	templates_folder = os.environ['TEMPLATE_DIR']
else:
	templates_folder = r"C:\Users\USER\Downloads\templates"

delete_output = 'SAVE_OUTPUT' not in os.environ
data_dir = templates_folder
image_paths = [os.path.join(data_dir, "template.jpg"), os.path.join(data_dir, "template.jpeg")]
output_path = os.path.join(data_dir, "result.jpg")
temp_file_path = os.path.join(data_dir, "temp.jpg")
# Getting resulting image size.
image_sizes = []
for image_path in image_paths:
	with Image.load(image_path) as image:
		image_sizes.append(image.size)

new_width = 0
new_height = 0
for size in image_sizes:
	new_height += size.height
	new_width = max(new_width, size.width)
	
# Combining images into new one.
with StreamExtensions.create_memory_stream() as memory_stream:
	output_stream_source = StreamSource(memory_stream)
	with JpegOptions() as options:
		options.source = output_stream_source
		options.quality = 100
		with aspycore.as_of(Image.create(options, new_width, new_height), JpegImage) as new_image:
			stitched_height = 0
			for image_path in image_paths:
				with aspycore.as_of(Image.load(image_path), RasterImage) as image:
					bounds = Rectangle(0, stitched_height, image.width, image.height)
					new_image.save_argb_32_pixels(bounds, image.load_argb_32_pixels(image.bounds))
					stitched_height += image.height

			new_image.save(output_path)

if delete_output:
	os.remove(output_path)