U
    ?h$                     @   s  d dl Z d dlmZ d dlmZ d dlZd dlZd dlm	Z	 d dl
mZ d dlmZ d dlmZ d dlmZmZmZmZmZmZmZ d d	lmZ d
dlmZ d
dlmZ ddlmZmZm Z m!Z!m"Z" ddl#m$Z$m%Z%m&Z& ej'dddd Z(dd Z)dd Z*dd Z+ej,-dddgdd Z.dd Z/d d! Z0d"d# Z1d$d% Z2d&d' Z3d(d) Z4d*d+ Z5d,d- Z6d.d/ Z7G d0d1 d1Z8d2d3 Z9d4d5 Z:d6d7 Z;d8d9 Z<d:d; Z=d<d= Z>d>d? Z?d@dA Z@dBdC ZAdS )D    N)BytesIO)NamedTemporaryFile)Image)testing)temporary_file)expected_warnings)assert_allcloseassert_array_almost_equalassert_array_equalassert_equalcolor_checkfetch
mono_check)structural_similarity   )img_as_float)rgb2lab   )imreadimsavereset_plugins
use_pluginplugin_order)_palette_is_grayscalendarray_to_pilpil_to_ndarrayT)Zautousec                   c   s   t d dV  t  dS )z-Ensure that PIL plugin is used in tests here.pilN)r   r    r   r   K/var/www/html/venv/lib/python3.8/site-packages/skimage/io/tests/test_pil.pyuse_pil_plugin   s    r   c                  C   sF   t  } | d d dkst| d d dks.t| d d dksBtd S )Nr   r   r   r   Zimread_collection)r   AssertionError)orderr   r   r   test_prefered_plugin    s    r"   c               	   C   sf   t dd} | j}W 5 Q R X td}t|| tt|}t| t	t
|| dk sbtd S )N.pngsuffixr   gMbP?)r   namenpeyer   r   r   osremovesumabsr    )ffnameIZIpr   r   r   test_png_round_trip'   s    


r0   c                  C   s\   t tddd} | jdkst| jtjks.tt tddd} t| jtjd ksXtd S )Ndata/color.pngT)Zas_grayr   zdata/camera.pngZ
AllInteger)	r   r   ndimr    dtyper'   float64Zsctype2char	typecodesimgr   r   r   test_imread_as_gray2   s
    r8   explicit_kwargsFc              	   C   sf   t jddd}tdd}|j}W 5 Q R X | r2n t|| t|}t| |j	dksbt
|j	d S )Nr         z.tifr$   )r:   r;   r   )r'   randomrandr   r&   r   r   r)   r*   shaper    )r9   xr-   r.   r7   r   r   r   test_imread_separate_channels;   s    

r@   c                  C   s$   t td} | jdks t| jd S )Nzdata/multipage_rgb.tif)r   
   rA   r   )r   r   r>   r    r6   r   r   r   test_imread_multipage_rgb_tifQ   s    rB   c                  C   s8   t td} | jdkstt td} | jdks4td S )Ndata/palette_gray.pngr   data/palette_color.pngr   )r   r   r2   r    r6   r   r   r   test_imread_paletteV   s    rE   c                  C   s   t jddddgddddgddddgddddgddddggddddgddddgddddgddddgddddggddddgddddgddddgddddgddddgggt jd} ttd}t||  d S )N   r            r3   zdata/foo3x5x4indexed.png)r'   arrayuint8r   r   r
   )Zdfoor7   r   r   r    test_imread_index_png_with_alpha]   s.    













rM   c                  C   s8   t td} t| stt td}t|r4td S )NrC   rD   )r   openr   r   r    )graycolorr   r   r   test_palette_is_grays   s    rQ   c                  C   s2   t d} d| d d d< ttd}t||  d S )NrA   rA   rG   r   zdata/checker_bilevel.png)r'   zerosr   r   r
   expectedr7   r   r   r   test_bilevelz   s    
rV   c                  C   s<   t td} ttd}t |jt js.tt||  d S )Ndata/chessboard_GRAY_U8.npyzdata/chessboard_GRAY_U16.tif)	r'   loadr   r   
issubdtyper3   uint16r    r	   rT   r   r   r   test_imread_uint16   s    r[   c                	   C   s&   t t ttd W 5 Q R X d S )Nzdata/truncated.jpg)r   raisesIOErrorr   r   r   r   r   r   test_imread_truncated_jpg   s    r^   c               	   C   sd   t td} tddB}t|| dd t|}t| ||  |   d}|dksVt	W 5 Q R X d S )NrW   .jpgr$   _   )ZqualityZ
data_rangeGz?)
r'   rX   r   r   r   r   r   maxminr    )Z
chessboardZjpgZimsimr   r   r   test_jpg_quality_arg   s     rf   c                  C   s8   t td} ttd}|jt jks*tt||  d S )NrW   zdata/chessboard_GRAY_U16B.tif)r'   rX   r   r   r3   rZ   r    r	   rT   r   r   r   test_imread_uint16_big_endian   s    rg   c                   @   s>   e Zd Zdd Zdd ZdddZdd	 Zd
d Zdd ZdS )TestSavec              
   C   s8   t dd$}t|| t|}|W  5 Q R  S Q R X d S )Nr#   r$   )r   r   r   )selfr?   r.   yr   r   r   roundtrip_file   s    
zTestSave.roundtrip_filec                 C   s   t |}t|}|S N)r   r   )ri   r?   	pil_imagerj   r   r   r   roundtrip_pil_image   s    zTestSave.roundtrip_pil_image   c                 C   s   t || tj| d S rl   )r	   astyper'   Zint32)ri   r3   r?   rj   Zscalingr   r   r   verify_roundtrip   s    zTestSave.verify_roundtripc                 c   s   dD ]}t jt jt jt jfD ]f}t j||dt jj|  }t |t j	r`| j
||||dfV  q|d |}| j
||||fV  qqd S )N)rR   )rA   rA   r   )rA   rA      rJ   rG   )r'   rL   rZ   Zfloat32r4   Zonesr<   r=   rY   Zfloatingrq   rp   )ri   Zroundtrip_functionr>   r3   r?   r   r   r   verify_imsave_roundtrip   s     z TestSave.verify_imsave_roundtripc                 C   s   |  | j d S rl   )rs   rk   ri   r   r   r   test_imsave_roundtrip_file   s    z#TestSave.test_imsave_roundtrip_filec                 C   s   |  | j d S rl   )rs   rn   rt   r   r   r   test_imsave_roundtrip_pil_image   s    z(TestSave.test_imsave_roundtrip_pil_imageN)ro   )	__name__
__module____qualname__rk   rn   rq   rs   ru   rv   r   r   r   r   rh      s   
rh   c                  C   s   t dd} tt0 t| d g t| td W 5 Q R X W 5 Q R X tt0 t| d g t| td W 5 Q R X W 5 Q R X tt. tg  t| tddd W 5 Q R X W 5 Q R X W 5 Q R X d S )Nr#   r$   z is a low contrast image)r   r   r   ro   )r   r   r   F)Zcheck_contrast)r   r   r\   
ValueErrorr   r   r'   rS   )r.   r   r   r   test_imsave_incorrect_dimension   s    $$
r{   c               	   C   s`   d} t | }t }tdg t|| W 5 Q R X |d t|}t|j|  t	|| d S )Nr   r   zis a low contrast imager   )
r'   rS   r   r   r   seekr   r   r>   r   r>   imagesoutr   r   r   test_imsave_filelike   s    

r   c               	   C   sl   d} t j| dti}t }tdg t|| W 5 Q R X |d t|}t|j	|  t
|t| d S )Nr|   r3   z6is a boolean image: setting True to 255 and False to 0r   )r'   r(   boolr   r   r   r}   r   r   r>   r   rp   r~   r   r   r   test_imsave_boolean_input   s    
r   c                  C   s.   d} t | }t|}t|}t|j|  d S )Nr|   )r'   rS   r   r   r   r>   )r>   r   rm   r   r   r   r   test_imexport_imimport   s
    
r   c                	   C   sB   t dg td W 5 Q R X t dg tdd W 5 Q R X d S )N.* is a boolean imager   Zbmp)r   r   r   r   r   r   test_all_color   s    r   c                	   C   s"   t dg td W 5 Q R X d S )Nr   r   )r   r   r   r   r   r   test_all_mono  s    r   c                  C   sP   t td} | jdks t| jt tddd}|jdks>tt| d | d S )Nzdata/no_time_for_that_tiny.gif)         r      )Zimg_num)r   r   r   )r   r   r>   r    r   )r7   Zimg2r   r   r   test_multi_page_gif  s    r   c               	   C   s   t td} ttd}|d}tdd}|j}W 5 Q R X || z|  W n t	k
rj   Y nX t |}t
| }t
|}tdD ]b}t|d d d d |f }t|d d d d |f }	t|	||	 |	  d}
|
dkstqd S )Nr1   ZCMYKr_   r$   r   ra   rb   )r   r   r   rN   convertr   r&   savecloseAttributeErrorr   ranger'   Zascontiguousarrayr   rc   rd   r    )refr7   r-   r.   newZref_labZnew_labiZnewiZrefire   r   r   r   	test_cmyk  s(    

r   c                  C   s   t td} t| jd d S )Nzdata/green_palette.pngr   )r   r   r   r2   r6   r   r   r   test_extreme_palette+  s    r   )Br)   ior   tempfiler   numpyr'   ZpytestZPILr   Zskimage._sharedr   Zskimage._shared._tempfiler   Zskimage._shared._warningsr   Zskimage._shared.testingr   r	   r
   r   r   r   r   Zskimage.metricsr    r   rP   r   r   r   r   r   r   Z_plugins.pil_pluginr   r   r   Zfixturer   r"   r0   r8   markZparametrizer@   rB   rE   rM   rQ   rV   r[   r^   rf   rg   rh   r{   r   r   r   r   r   r   r   r   r   r   r   r   <module>   sP   $

	
#	