ó
 ‰\c           @   sš   d  d l  Z d  d l m Z m Z m Z m Z d  d l m Z d  d l	 m
 Z
 d „  Z d „  Z d „  Z d „  Z d	 „  Z d
 „  Z d „  Z d „  Z d S(   iÿÿÿÿN(   t   morphological_chan_veset%   morphological_geodesic_active_contourt   inverse_gaussian_gradientt   circle_level_set(   t   testing(   t   assert_array_equalc          C   sD   t  j d d … d d … f }  |  d j d ƒ } t  j | d ƒ S(   Niûÿÿÿi   i   i    i
   (   t   npt   mgridt   sumt   exp(   t   coordst   sqrdistances(    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   gaussian_blob   s    c          C   sz   t  j d ƒ }  t  j d ƒ } t j t ƒ  t |  d d d | ƒWd  QXt j t ƒ  t |  d d d | ƒWd  QXd  S(	   Ni
   i   i	   t
   iterationsi   t   init_level_set(   i
   i
   i   (   i
   i	   (   R   t   zerosR   t   raisest
   ValueErrorR    R   (   t   imgt   ls(    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt&   test_morphsnakes_incorrect_image_shape   s    c          C   sz   t  j d ƒ }  t  j d ƒ } t j t ƒ  t |  d d d | ƒWd  QXt j t ƒ  t |  d d d | ƒWd  QXd  S(   Ni   R   i   R   (   i   i   i   i   (   i   i   i   i   (   R   R   R   R   R   R    R   (   R   R   (    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   test_morphsnakes_incorrect_ndim   s    c          C   s  t  j d ƒ }  t |  j d d ƒ } t  j |  j d t  j ƒ} t  j |  j d t  j ƒ} t |  d d d | ƒ} t | | ƒ t |  d d d | ƒ} t | | ƒ t |  d d d | d d	 d
 d d d ƒ} t | | ƒ | j	 | j	 k o	| j	 k o	t  j k n st
 ‚ d  S(   Ni   i   i   t   dtypeR   i   R   t   ballooni   t	   thresholdiÿÿÿÿt	   smoothingi    (   i   i   (   i   i   (   R   R   R   t   shapet   int8t   onesR    R   R   R   t   AssertionError(   R   R   t	   ref_zerost   ref_onest   acwe_lst   gac_lst   gac_ls2(    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   test_morphsnakes_black'   s    		c          C   sŸ   t  ƒ  }  t |  j d d ƒ } t |  j d d ƒ } t |  d d d | ƒ} t |  d d d | ƒ} t | | ƒ | j | j k o t j k n s› t ‚ d  S(	   Ni   i   i   R   i
   R   (   i   i   (   i   i   (	   R   R   R   R    R   R   R   R   R   (   R   t   ls1t   ls2t   acwe_ls1t   acwe_ls2(    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt'   test_morphsnakes_simple_shape_chan_vese>   s    	c          C   s3  t  j t d d d ƒ ƒ }  t |  d d d d ƒ} t |  j d d ƒ } t  j d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 g d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 g d	 d	 d	 d	 d	 d
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 d	 d	 d	 d	 d	 g d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 g d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 d	 g g d t  j ƒ} t | d d d | d d ƒ} t | | ƒ | j	 t  j k s/t
 ‚ d  S(   Ni   i   g      @t   alphag      $@t   sigmag      ð?i   i    i   R   R   i
   R   R   iÿÿÿÿ(   i   i   (   i   i   (   i   i   (   R   t   float_R   R   R   t   arrayR   R   R   R   R   (   R   t   gimgR   t   refR!   (    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt5   test_morphsnakes_simple_shape_geodesic_active_contourK   s(    *$$$$$$$$$*	c          C   s}  t  j d ƒ }  t |  d d ƒ } t  j d d d d d d g d d d d d d g d d d d d d g d d d d d d g d d d d d d g d d d d d d g g d t  j ƒ} t |  d d ƒ } t  j d d d d d d g d d d d d d g d d d d d d g d d d d d d g d d d d d d g d d d d d d g g d t  j ƒ} t | | ƒ t | | ƒ d  S(   Ni   i    t   checkerboardi   R   t   circle(   i   i   (   R   R   R    R,   R   R   R   (   t   imaget   checkerboard_lst   checkerboard_reft	   circle_lst
   circle_ref(    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   test_init_level_setsd   s"    ''c             s¨   t  j d
 ƒ }  g  ‰  ‡  f d †  } t |  d d d | ƒ} ˆ  d d k sR t ‚ | j ƒ  d k sj t ‚ x7 t ˆ  d  ˆ  d	 ƒ D] \ } } | | k s‚ t ‚ q‚ Wd  S(   Ni   c            s   ˆ  j  |  j ƒ  ƒ d  S(   N(   t   appendR   (   t   x(   t	   evolution(    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   callback   s    i   R1   t   iter_callbacki    iQ   iÿÿÿÿi   (   i   i   i   (   R   R   R    R   R   t   zip(   R2   R;   R   t   v1t   v2(    (   R:   sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   test_morphsnakes_3dz   s    	$(   t   numpyR   t   skimage.segmentationR    R   R   R   t   skimage._sharedR   t   skimage._shared.testingR   R   R   R   R#   R(   R/   R7   R@   (    (    (    sJ   lib/python2.7/site-packages/skimage/segmentation/tests/test_morphsnakes.pyt   <module>   s   "							