Python PIL | paste() 和 rotate() 方法

PIL 是Python Imaging Library，它为Python解释器提供了图像编辑功能。

PIL.Image.Image.paste()方法用于将图像粘贴到另一个图像上。这就是 new() 方法派上用场的地方。

Syntax: PIL.Image.Image.paste(image_1, image_2, box=None, mask=None) 
OR image_object.paste(image_2, box=None, mask=None)
Parameters: 
image_1/image_object : It the image on which other image is to be pasted. 
image_2: Source image or pixel value (integer or tuple). 
box: An optional 4-tuple giving the region to paste into. If a 2-tuple is used instead, it’s treated as the upper left corner. If omitted or None, the source is pasted into the upper left corner. 
If an image is given as the second argument and there is no third, the box defaults to (0, 0), and the second argument is interpreted as a mask image.
mask: An optional mask image. 

Python3

# Importing Image module from PIL package
from PIL import Image
 
# creating a image object (main image)
im1 = Image.open(r"C:\Users\Admin\Pictures\network.PNG")
 
# creating a image object (image which is to be paste on main image)
im2 = Image.open(r"C:\Users\Admin\Pictures\geeks.PNG")
 
# pasting im2 on im1
Image.Image.paste(im1, im2, (50, 125))
 
# to show specified image
im1.show()

输出：

PIL.Image.Image.rotate() 方法 –

此方法用于将给定图像围绕其中心逆时针旋转给定度数。

Syntax: 
new_object = PIL.Image.Image.rotate(image_object, angle, resample=0, expand=0) 
OR 
new_object = image_object.rotate(angle, resample=0, expand=0)
Either of the syntax can be used
Parameters: 
image_object: It is the real image which is to be rotated. 
angle: In degrees counter clockwise. 
resample: An optional resampling filter. This can be one of PIL.Image.NEAREST (use nearest neighbor), PIL.Image.BILINEAR (linear interpolation in a 2×2 environment), or PIL.Image.BICUBIC (cubic spline interpolation in a 4×4 environment). If omitted, or if the image has mode “1” or “P”, it is set PIL.Image.NEAREST. 
expand: Optional expansion flag. If true, expands the output image to make it large enough to hold the entire rotated image. If false or omitted, make the output image the same size as the input image.
Return Value: Returns a copy of rotated image. 
 

Python3

# Importing Image module from PIL package
from PIL import Image
import PIL
 
# creating a image object (main image)
im1 = Image.open(r"C:\Users\Admin\Pictures\network.PNG")
 
# rotating a image 90 deg counter clockwise
im1 = im1.rotate(90, PIL.Image.NEAREST, expand = 1)
 
# to show specified image
im1.show()

输出：

使用的图像 –