#------- CHECKING DEPENDENCIES -----------------------------------------
painting_possible = True
try:
from skimage.filter import sobel
except:
try:
from scipy.ndimage.filters import sobel
except:
painting_possible = False
#-----------------------------------------------------------------------
import numpy as np
def to_painting(image,saturation = 1.4,black = 0.006):
""" transforms any photo into some kind of painting """
edges = sobel(image.mean(axis=2))
darkening = black*(255*np.dstack(3*[edges]))
painting = saturation*image-darkening
return np.maximum(0,np.minimum(255,painting)).astype('uint8')
def painting(clip, saturation = 1.4,black = 0.006):
"""
Transforms any photo into some kind of painting. Saturation
tells at which point the colors of the result should be
flashy. ``black`` gives the anount of black lines wanted.
Requires Scikit-image or Scipy installed.
"""
return clip.fl_image(lambda im : to_painting(im,saturation,black))
#------- OVERWRITE IF REQUIREMENTS NOT MET -----------------------------
if not painting_possible:
doc = painting.__doc__
[docs] def painting(clip, newsize=None, height=None, width=None):
raise IOError("fx painting needs scikit-image or scipy")
painting.__doc__ = doc
#-----------------------------------------------------------------------