To represent opencv image as normalised float

img_as_float.py

import cv2
import numpy as np
from skimage import img_as_float

#Read image from given direcotory
image = cv2.imread('C:\Python27\images\pic.jpg')
#Print pixel at (100,100)
print image[100,100]

#................  image converted to float.............

float_var = img_as_float(image)
#Print floating point image coordinates
print float_var[100,100]