Combine Images with Base64 Encoding

To combine multiple images into one image, you can achieve this by following these steps using base64 encoding and decoding.

1. Read multiple images into memory separately in binary format.
2. Encode each image in base64 to obtain the corresponding base64 string.
3. Concatenate multiple base64 strings together, using a newline or another character for separation.
4. Decode the concatenated base64 string into binary data.
5. Save the decoded binary data as a new image file.

Here is an example Python code:

import base64
from PIL import Image

def combine_images(image_paths):
    images = []
    max_width = 0
    total_height = 0

    # 读取图片并计算合成后的图片大小
    for image_path in image_paths:
        image = Image.open(image_path)
        images.append(image)
        max_width = max(max_width, image.width)
        total_height += image.height

    # 创建合成后的空白图片
    combined_image = Image.new('RGB', (max_width, total_height), 'white')

    # 将每张图片粘贴到合成图片上
    y_offset = 0
    for image in images:
        combined_image.paste(image, (0, y_offset))
        y_offset += image.height

    # 将合成图片转换为 base64 字符串
    buffered = BytesIO()
    combined_image.save(buffered, format='PNG')
    base64_image = base64.b64encode(buffered.getvalue()).decode('utf-8')

    return base64_image

# 示例使用
image_paths = ['image1.jpg', 'image2.jpg', 'image3.jpg']
combined_image_base64 = combine_images(image_paths)

# 将合成后的图片保存为文件
with open('combined_image.png', 'wb') as f:
    f.write(base64.b64decode(combined_image_base64))

Please note that the example code utilizes the PIL library (Python Imaging Library) in Python to handle images. You need to install this library by running pip install pillow.