55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
# -*- coding:utf-8 -*-
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# @Author len
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# @Create 2023/12/11 17:22
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# 使用中文注释的优化代码
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from PIL import Image
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def resize_image_proportionally(img, target_width, target_height):
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"""按比例缩放图像。"""
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# 计算宽高比并确定新尺寸
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original_width, original_height = img.size
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ratio = min(target_width / original_width, target_height / original_height)
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new_dimensions = (int(original_width * ratio), int(original_height * ratio))
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# 使用 Resampling.LANCZOS 而不是 ANTIALIAS
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return img.resize(new_dimensions, Image.Resampling.LANCZOS)
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# 使用修改后的函数来处理图像并生成A4纸拼贴
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def create_a4_collage_proportionally(images_paths, output_path):
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a4_size = (2480, 3508)
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"""在A4纸大小的图像上创建图像拼贴，同时保持它们的宽高比，并且可以指定图像向下和向两边的偏移量。"""
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# 创建一个空白的A4图像
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a4_image = Image.new('RGB', a4_size, "white")
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# 计算目标尺寸（A4尺寸的一半）
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target_width = (a4_size[0]-900) // 2
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target_height = a4_size[1] // 2
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# 处理并粘贴每张图像
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for idx, image_path in enumerate(images_paths):
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with Image.open(image_path) as img:
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# 按比例缩放图像
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resized_img = resize_image_proportionally(img, target_width, target_height)
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# 计算粘贴位置，将图像向下移动 offset_y 像素，并在水平方向上增加 offset_x
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x_position = (idx % 2) * target_width + 450
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y_position = (idx // 2) * target_height + 600
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# 将缩放后的图像粘贴到A4背景上
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a4_image.paste(resized_img, (x_position, y_position))
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print(idx, x_position)
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# 将最终的拼贴图保存到文件
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a4_image.save(output_path)
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# 示例用法
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images = ['data/赛题二任务九2-1.png', 'data/赛题二任务九2-2.png']
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output_path = 'data/赛题二任务九2.png' # 输出路径
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# 调用函数创建拼贴图像
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create_a4_collage_proportionally(images, output_path)
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