Imagekit use

gistfile1.py

# In imagekit_specs.py 
from imagekit.specs import ImageSpec
from imagekit import processors

class EnhanceAvatar(processors.Adjustment):                                     
    contrast = 1.2                                                              
    sharpness = 1.1

class ResizeAvatar(processors.Resize):                                          
    width = 100                                                                 
    height = 100                                                                
    crop = True

class Avatar(ImageSpec):                                                        
    access_as = 'avatar'                                                        
    pre_cache = True                                                            
    quality = 100                                                               
    processors = [ResizeAvatar, EnhanceAvatar]

# In models 
class Member(ImageModel):
    picture = models.ImageField()

    class IKOptions:
        spec_module = 'imagekit_specs'
        image_field = 'picture'