Python PIL | Image.frombuffer() method

Last Updated : 07 Aug, 2019

PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The Image module provides a class with the same name which is used to represent a PIL image. The module also provides a number of factory functions, including functions to load images from files, and to create new images.

PIL.Image.frombuffer() Creates an image memory referencing pixel data in a byte buffer.

Note that this function decodes pixel data only, not entire images. If you have an entire image file in a string, wrap it in a BytesIO object, and use open() to load it.

Syntax: PIL.Image.frombuffer(mode, size, data, decoder_name=’raw’, *args)

Parameters:
mode – The image mode. See: Modes
size – The image size.
data – A byte buffer containing raw data for the given mode.
decoder_name – What decoder to use.
args – Additional parameters for the given decoder. For the default encoder (“raw”), it’s recommended that you provide the full set of parameters:frombuffer(mode, size, data, "raw", mode, 0, 1)

Returns: An Image object.

Image Used:

      
  
# importing image object from PIL 
from PIL import Image 
  
# creating an image object 
im = Image.open(r"C:\Users\System-Pc\Desktop\rose.jpg") 
im1 = im.tobytes("xbm", "rgb") 
img = Image.frombuffer("L", (4, 4), im1, 'raw', "L", 0, 1) 
  
# creating list  
img2 = list(img.getdata()) 
print(img2) 
 
  

Output:

[48, 120, 102, 102, 44, 48, 120, 102, 102, 44, 48, 120, 102, 102, 44, 48]

Another Example: Here we use another image.

Image Used:

      
  
# importing image object from PIL 
from PIL import Image 
   
# creating an image object 
im = Image.open(r"C:\Users\System-Pc\Desktop\ellipse1.png") 
im1 = im.tobytes("xbm", "rgb") 
img = Image.frombuffer("L", (10, 10), im1, 'raw', "L", 0, 1) 
  
# creating list  
img2 = list(img.getdata()) 
print(img2) 
 
  

Output:

[48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 10, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56, 44, 48, 120, 56, 56]

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Python PIL | Image.frombuffer() method

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