Here are a few question-based titles that capture the essence of your article: **General:** * **How to Combine Images Horizontally in Python: A Step-by-Step Guide** * **Concatenating Images in Pytho

Combining Images Horizontally with Python

Python provides powerful image processing capabilities, including the option to combine multiple images horizontally. This article addresses the challenges faced when attempting to join three JPEG images, ensuring proper alignment and seamless transitions.

Problem Overview

The goal is to horizontally concatenate three images, each measuring 148 x 95 pixels. The desired output is a single image where the three sub-images are seamlessly merged.

Initial Attempt

The initial approach utilized a nested loop within a for loop and the Image.paste() method to paste each image into a newly created canvas. However, this resulted in partial images being visible in the output.

Implementing a Revised Solution

To rectify the issue, a more efficient approach was developed, leveraging the Image.open() and Image.size() methods to obtain image dimensions and dynamically adjust the new image size. The code is as follows:

<code class="python">import sys
from PIL import Image

images = [Image.open(x) for x in ['Test1.jpg', 'Test2.jpg', 'Test3.jpg']]
widths, heights = zip(*(i.size for i in images))

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]

new_im.save('test.jpg')</code>

Results

The revised solution successfully combined the images horizontally, producing the expected output:

Test1.jpg                        Test2.jpg                        Test3.jpg
──────▄▄██▀▀▀▀▄──────────▄▄██▀▀▀▀▄──────────▄▄██▀▀▀▀▄
─────█▒▒░██▄▒▒▒█───────█▒▒░█████▒█───────█▒▒░█████▒█
───▄████▒▒████▒▒██▄──▄████▒▒████▒▒██▄──▄████▒▒████▒▒██▄
───██▒▒▒█▒▒▒█▒▒▒█▒▒██─██▒▒▒█▒▒▒█▒▒▒█▒▒██─██▒▒▒█▒▒▒█▒▒▒█▒▒██
──██▒▒▒▒▒█▒▒▒▒▒█▒▒▒▒██─██▒▒▒▒▒█▒▒▒▒▒█▒▒▒▒██─██▒▒▒▒▒█▒▒▒▒▒█▒▒▒▒██
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───▄████▒▒▒█▒▒▒█▒▒▒█████▒▒█████▒▒▒█▒▒▒█████▒▒█████▒▒▒█▒▒▒█▒▒▒█▒▒████▄───
─────█▒▒▒████▒█▒▒▒▒▒▒████▒▒▒████▒▒█▒▒▒▒▒▒████▒▒▒████▒▒████▒▒▒▒▒█▒▒▒█─────
─────────▐▒▒▒█▒▒▒▒▒▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█▒▒▒▒▒▒▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█──────────
──────────▀▒▒█▒▒▒▒▒▒▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█▒▒▒▒▒▒▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█▒▒▒▒▒▒▒█───────────

This improved solution effectively concatenated the three images, avoiding the issue of extra partial images showing. It provides a dynamic and customizable way to merge multiple images horizontally, making it suitable for general-purpose image processing tasks.

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