ó
 ‰\c           @   s‘   d  d l  Z d  d l 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 „  Z d S(   iÿÿÿÿN(   t	   chan_vese(   t   testing(   t   assert_array_equalc          C   sÌ   t  j d
 ƒ }  t  j d ƒ |  d d … d d … f <t  j d ƒ d } t |  d d d d d	 | ƒ} t | j t  j ƒ t  j d ƒ ƒ t |  d d d d d	 | ƒ} t | j t  j ƒ t  j d ƒ ƒ d  S(   Ni
   i   i   iè  t   mug        t   tolgü©ñÒMbP?t   init_level_set(   i
   i
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   i
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   i
   (   i
   i
   (   t   npt   zerost   onesR    R   t   astypet   float(   t   imgt   lst   result(    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_flat_level_set   s    %"c          C   so   t  j d
 ƒ }  t  j d ƒ |  d d … d d … f <t |  d d d d d d	 ƒ} t | j t  j ƒ |  ƒ d  S(   Ni
   i   i   R   g        R   gü©ñÒMbP?R   s
   small disk(   i
   i
   (   i   i   (   R   R   R   R    R   R	   R
   (   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt#   test_chan_vese_small_disk_level_set   s    %c          C   si   t  j d ƒ }  t  j d	 ƒ |  d d … d d … f <t |  d d d d ƒj t  j ƒ } t | |  ƒ d  S(
   Ni
   i   i   R   g        R   g:Œ0âŽyE>(   i
   i
   (   i   i   (   R   R   R   R    R	   R
   R   (   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_simple_shape   s    %$c          C   si   t  j d	 ƒ }  t  j d
 ƒ |  d d … d d … f <t |  d d d d d t ƒ} t t | ƒ d ƒ d  S(   Ni
   i   i   R   g        R   g:Œ0âŽyE>t   extended_output(   i
   i
   (   i   i   (   R   R   R   R    t   TrueR   t   len(   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_extended_output&   s    %c          C   së   t  j d ƒ }  t  j d d d d d g d d d d d g d d d d d g d d d d d g d d d d d g g ƒ |  d d … d d … f <|  j ƒ  } d | d <t | d d d	 d
 d d d d d d ƒj t  j ƒ } t | |  ƒ d  S(   Ni
   i    i   i   i   i   R   g333333Ó?R   gü©ñÒMbP?t   max_iterid   t   dtR   t   disk(   i
   i
   (   i   i   (   R   R   t   arrayt   copyR    R	   R
   R   (   t   refR   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_remove_noise-   s    1
!c       
   C   sN   t  j d ƒ }  t  j d ƒ } t j t ƒ  t |  d d d | ƒWd  QXd  S(	   Ni
   i   i	   R   g        R   (   i
   i
   i   (   i
   i	   (   R   R   R   t   raisest
   ValueErrorR    (   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt#   test_chan_vese_incorrect_image_type;   s    c          C   s¦   t  j d ƒ }  t  j d ƒ |  d d … d  d  … f <|  j ƒ  } t  j d ƒ | d  d  … d f <t | d d d d	 d
 d d d d d ƒj t  j ƒ } t | |  ƒ d  S(   Ni   i   i   i   i   R   gffffffæ?R   gü©ñÒMbP?R   iè  R   R   R   (   i   i   (   i   i   (   R   R   R   R   R    R	   R
   R   (   R   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_gap_closingB   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 d ƒWd  QXd  S(	   Ni
   i	   R   g        R   t   a(   i
   i
   (   i
   i	   (   R   R   R   R   R   R    (   R   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt"   test_chan_vese_incorrect_level_setL   s    c          C   s_   t  j d ƒ }  t  j j d d ƒ } | d k } t |  d d d d d | ƒ} t | | ƒ d  S(   Ni
   i    R   g        R   R   (   i
   i
   (   R   R   t   randomt   randR    R   (   R   t	   level_setR   R   (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   test_chan_vese_blank_imageU   s
    (   t   numpyR   t   skimage.segmentationR    t   skimage._sharedR   t   skimage._shared.testingR   R   R   R   R   R   R   R   R!   R%   (    (    (    sH   lib/python2.7/site-packages/skimage/segmentation/tests/test_chan_vese.pyt   <module>   s   							
		