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d Z d Z d
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Z d Z RS( s Get image or feature statisticsc C s y. | r | j | | _ n | j | _ Wn t k
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rJ | | _ n Xt | j t g k rr t d n t t | j d | _ d S( Ns$ first argument must be image or listi ( t histogramt ht AttributeErrort typet TypeErrort ranget lent bands( t selft image_or_listt mask( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt __init__/ s c C sF | d d k r t | n t | d | } t | | | | S( s Calculate missing attributei t _get( R t getattrt setattr( R t idt v( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt __getattr__; s
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c C sS d } g } x= t d t | j d D] } | j | | j | q+ W| S( s- Get min/max values for each band in the imagec S sX d } d } x? t d D]1 } | | r t | | } t | | } q q W| | f S( Niÿ i i ( R t mint max( R t nt xt i( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt minmaxG s
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i i ( R R R t append( R R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getextremaD s
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" c C sW g } xJ t d t | j d D]- } | j t t j | j | | d ! q" W| S( s( Get total number of pixels in each layeri i ( R R R R t reducet operatort add( R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getcountU s "+c C ss g } xf t d t | j d D]I } d } x- t d D] } | | | j | | } q; W| j | q" W| S( s# Get sum of all pixels in each layeri i g ( R R R R ( R R R t sumt j( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getsum] s " c C s} g } xp t d t | j d D]S } d } x7 t d D]) } | | d t | j | | } q; W| j | q" W| S( s+ Get squared sum of all pixels in each layeri i g i ( R R R t floatR ( R R R t sum2R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getsum2h s "'c C s= g } x0 | j D]% } | j | j | | j | q W| S( s& Get average pixel level for each layer( R R R t count( R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getmeans s #c C s g } x{ | j D]p } d } | j | d } | d } x9 t d D]+ } | | j | | } | | k rD PqD qD W| j | q W| S( s% Get median pixel level for each layeri i i ( R R% R R R ( R R R t st lt bR ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt
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_getmedian{ s
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c C sF g } x9 | j D]. } | j t j | j | | j | q W| S( s Get RMS for each layer( R R t matht sqrtR# R% ( R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getrms s ,c C sV g } xI | j D]> } | j | } | j | j | | j | d | | q W| S( s Get variance for each layerg @( R R% R R# R ( R R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt _getvar s
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/c C s; g } x. | j D]# } | j t j | j | q W| S( s% Get standard deviation for each layer( R R R+ R, t var( R R R ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt
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_getstddev s !N( t __name__t
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__module__t __doc__t NoneR R R R R! R$ R& R* R- R. R0 ( ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyR % s ( ( t ImageR R+ R t Global( ( ( sp .\ServerPython\ZoneServerGroup\map1_8G\MapServer\MapServerData\CaptchaImage\VerificationCodePic\PIL\ImageStat.pyt <module> s
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