CODE EXAMPLE FOR PYTHON

Django Save Image

import PIL
from io import BytesIO
from PIL import Image
from django.core.files import File



class Image(models.Model):
    image = models.FileField()

    def save(self, *args, **kwargs):
        new_image = self.compress_images(self.image)  
    
        # asignar la nueva imagen con menor peso
        self.image = new_image
        super().save(*args, **kwargs)
   

    def valid_extension(self,_img):
        if '.jpg' in _img:
            return "JPEG"
        elif '.jpeg' in _img:
            return "JPEG"
        elif '.png' in _img:
            return "PNG"


    def compress_images(self,image):
        im = Image.open(image)
        width, height = im.size
        im = im.resize((width-50, height-50), PIL.Image.ANTIALIAS) 
        # crear a BytesIO object
        im_io = BytesIO() 
        im.save(im_io, self.valid_extension(image.name) ,optimize=True, 
        quality=70) 
        new_image = File(im_io, name=image.name)
        return new_image