Python PIL | Image.point () method

Python Methods and Functions

Image.point() this image using a reference table or function.

Syntax: Maps this image through a lookup table or function.

Parameters:

lut - A lookup table, containing 256 (or 65336 if self.mode == ”I” and mode == “L”) values ​​per band in the image. A function can be used instead, it should take a single argument. The function is called once for each possible pixel value, and the resulting table is applied to all bands of the image.

mode - Output mode (default is same as input). In the current version, this can only be used if the source image has mode “L” or “P”, and the output has mode “1” or the source image mode is “I” and the output mode is “L”.

Returns: An Image object.

Image used:

 

 
# import image class from PIL

from PIL import Image 

 
# create object

im = Image. open (r "C: UsersSystem-PcDesktophome.png"

  
# using the dot function

threshold = 191  

im = im.point ( lambda p: p & gt; value threshold and 255 )

im.show ()

Output:

Another example: here the threshold value changes.

Image used:

 

  
# import image class from PIL package

from PIL import Image 

  
# create an object

im = Image. open (r "C: UsersSystem-PcDesktophome.png"

 
# using the dot function

threshold = 120  

im = im.point ( lambda p: p & gt; threshold and 255 )

im.show ()

Output:





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