''' Module: monad -- peforms one image transformation

    Name 1:
    Name 2:

    Email id 1:
    Email id 2:
'''

from PIL import Image                           # get Pillow Image capabilities
import locate, mutate, dimensions               # get our modules for image transformations

from PIL import Image

def cw( original ) :
    ''' Return a new image that is a 90 degree clockwise rotation
        of the original
    '''

    ow, oh = original.size                      

    nw, nh = ...                                # set dimensions of a clockwise rotated version of
                                                # original

    new_image = Image.new( 'RGB', ( nw, nh ) )
    
    for nx in range( 0, nw ) :                  
        for ny in range( 0, nh ) :             

            nspot = ( nx, ny )                
    
            ospot = ...                         # determine counter-clockwise spot in original that
                                                # is the correspondent for nspot
            
            opixel = original.getpixel( ospot ) 
    
            npixel = ...                        # npixel should be copy of the correspondent opixel
            
            new_image.putpixel( nspot, npixel ) 
    
    return new_image                           

if ( __name__ == '__main__' ) :

    import url

    # get web image of interest
    link = "http://www.cs.virginia.edu/~cs1112/images/mandrill/full.png"

    orig = url.get_image( link )

    new_image = cw( orig )

    new_image.show()