from PIL import Image

import math
import gamma

def tenth( x, y, w, h ) :
    pass


def warp( original ) :
    ow, oh = original.size
    nw, nh = ow, oh
    new_image = Image.new( 'RGB', ( nw, nh ) )

    for nx in range( 0, nw ) :
        for ny in range( 0, nh ) :
            nspot = (nx, ny )
            ospot = nspot
            opixel = original.getpixel( ospot )
            z = tenth( nx, ny, nw, nh )
            npixel = gamma.level( z, opixel )
            new_image.putpixel( nspot, npixel )
    return new_image


if ( __name__ == '__main__' ) :
    import url
    location = 'http://www.cs.virginia.edu/~cs1112/term/173/images/mandrill/full.png'
    original = url.get_image( location )

    im = warp( original )
    im.show()