python --旋转图片(横图转竖图)

水平翻转

from PIL import Image

def flip_horizontal(image_path, output_path):
	with Image.open(image_path) as image:
		flipped_image = image.transpose(method=Image.FLIP_LEFT_RIGHT)
		flipped_image.save(output_path)

垂直翻转

from PIL import Image
def flip_vertical(image_path, output_path):
	with Image.open(image_path) as image:
		flipped_image = image.transpose(method=Image.FLIP_TOP_BOTTOM)
		flipped_image.save(output_path)

上述代码中,flip_horizontalflip_vertical 分别是水平翻转和垂直翻转的函数。image_path 是输入图片的路径,output_path 是输出图片的路径。

使用示例中先调用 flip_horizontal 水平翻转图片,再调用 flip_vertical 垂直翻转图片。可以根据实际需求选择其中一种或两种方式。

横图转竖图

from PIL import Image

def rotate_image(image_path, output_path):
	with Image.open(image_path) as image:
	if image.width > image.height:
		# 横图,需要旋转
		rotated_image = image.transpose(method=Image.ROTATE_270)
		rotated_image.save(output_path)
	else:
		# 竖图,不需要操作
		image.save(output_path)

# 示例用法
image_path = "path/to/image"
output_path = "path/to/output"
rotate_image(image_path, output_path)

竖图转成横图

from PIL import Image

def rotate_image(image_path, output_path):
	with Image.open(image_path) as image:
		if image.width < image.height:
			# 竖图,需要旋转
			rotated_image = image.transpose(method=Image.ROTATE_90)
			rotated_image.save(output_path)
		else:
			# 横图,不需要操作
			image.save(output_path)

# 示例用法
image_path = "path/to/image"
output_path = "path/to/output"
rotate_image(image_path, output_path)

上述代码中的函数和判断逻辑与将横图转成竖图的示例类似,只是将判断条件改为图片的宽度小于高度。如果是竖图,则进行旋转操作,将其转成横图;如果是横图,则直接保存到输出路径。旋转的角度也可以修改成 Image.ROTATE_270(逆时针旋转 90 度)或其他需要的角度。

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转载自blog.csdn.net/weixin_44634704/article/details/129747073