U eL @stddlmZddlZddlmZmZdZddddd dd d d g Zd ddd d dd ddg ZGd ddZ GdddZ dS)) annotationsN)Image _imagingmorphic@sJeZdZdZdddZddZddZd d Zd d Zd dZ ddZ dS) LutBuilderaTA class for building a MorphLut from a descriptive language The input patterns is a list of a strings sequences like these:: 4:(... .1. 111)->1 (whitespaces including linebreaks are ignored). The option 4 describes a series of symmetry operations (in this case a 4-rotation), the pattern is described by: - . or X - Ignore - 1 - Pixel is on - 0 - Pixel is off The result of the operation is described after "->" string. The default is to return the current pixel value, which is returned if no other match is found. Operations: - 4 - 4 way rotation - N - Negate - 1 - Dummy op for no other operation (an op must always be given) - M - Mirroring Example:: lb = LutBuilder(patterns = ["4:(... .1. 111)->1"]) lut = lb.build_lut() NcCsv|dk r||_ng|_d|_|dk rrddgdgddgdgddgdddgd }||krhd |d }t||||_dS) Nz1:(... ... ...)->0z4:(00. 01. ...)->1z4:(... .0. .1.)->1z4:(... .0. ..1)->1z4:(... .1. .0.)->0z4:(... .1. ..0)->0z4:(.0. .1. ...)->1z4:(01. .1. ...)->1)ZcornerZ dilation4Z dilation8Zerosion4Zerosion8edgezUnknown pattern !)patternslut Exception)selfrop_nameZknown_patternsmsgrP/var/www/html/StaffProfile/newvenv/lib/python3.8/site-packages/PIL/ImageMorph.py__init__As&  zLutBuilder.__init__cCs|j|7_dSNr)rrrrr add_patternsZszLutBuilder.add_patternscs.ddgdtfddttD|_dS)Nrrc3s|]}|@dkVqdS)rNr).0imsymbolsrr `sz/LutBuilder.build_default_lut..) bytearrayrangeLUT_SIZErrrrrbuild_default_lut]szLutBuilder.build_default_lutcCs|jSrrr&rrrget_lutbszLutBuilder.get_lutcs(t|dkstdfdd|DS)zstring_permute takes a pattern and a permutation and returns the string permuted according to the permutation list. c3s|]}|VqdSrr)rppatternrrr"jsz-LutBuilder._string_permute..)lenAssertionErrorjoin)rr.Z permutationrr-r_string_permuteeszLutBuilder._string_permutec Cs||fg}d|krJ|dd}tdD]"}|||ddt|fq&d|krt|}|d|D]\}}|||t|fqfd|krt|}|d|D]>\}}|d d d d d d }dt|}|||fq|S) zpattern_permute takes a basic pattern and its result and clones the pattern according to the modifications described in the $options parameter. It returns a list of all cloned patterns.4rr rMNN0Z1)r$appendr2ROTATION_MATRIXr/ MIRROR_MATRIXreplaceint) rZ basic_patternoptionsZ basic_resultrresrnr.rrr_pattern_permutels$    zLutBuilder._pattern_permutec Cs@|g}|jD]x}td|dd}|sBd|d}t||d}|d}t|d}|d ddd}|||||7}qt |D]:\}}|d d d d d }t |}||df||<qt t D]`}t |dd} ddt| | ddd} |D](\}} || rd dg| |j|<qq|jS)zlCompile all patterns into a morphology lut. TBD :Build based on (file) morphlut:modify_lut z(\w*):?\s*\((.+?)\)\s*->\s*(\d) r+zSyntax error in pattern ""rr r r.Xz[01]Nr7r*r4)r'rresearchr=rgroupr>rB enumeratecompiler$r%binr/matchr) rrr,r rr?r.resultrZ bitpatternrrrr build_luts.        zLutBuilder.build_lut)NN) __name__ __module__ __qualname____doc__rrr'r)r2rBrQrrrrr s# r c@sJeZdZdZdddZddZddZd d Zd d Zd dZ ddZ dS)MorphOpz*A class for binary morphological operatorsNcCs<||_|dk r t|d|_n|dk r8t|d|_dS)z&Create a binary morphological operatorN)rr)rr rQ)rrrrrrrrs zMorphOp.__init__cCsb|jdkrd}t||jdkr,d}t|t|j|jd}tt |j|j j |j j }||fS)zRun a single morphological operation on an image Returns a tuple of the number of changed pixels and the morphed imageNNo operator loadedLImage mode must be L) rrmode ValueErrorrnewsizerapplybytesimid)rimagerZoutimagecountrrrr^s  z MorphOp.applycCsB|jdkrd}t||jdkr,d}t|tt|j|jjS)zGet a list of coordinates matching the morphological operation on an image. Returns a list of tuples of (x,y) coordinates of all matching pixels. See :ref:`coordinate-system`.NrWrXrY) rrrZr[rrNr_r`rarrbrrrrrNs  z MorphOp.matchcCs$|jdkrd}t|t|jjS)zGet a list of all turned on pixels in a binary image Returns a list of tuples of (x,y) coordinates of all matching pixels. See :ref:`coordinate-system`.rXrY)rZr[r get_on_pixelsr`rardrrrres zMorphOp.get_on_pixelsc CsHt|d}t||_W5QRXt|jtkrDd|_d}t|dS)z!Load an operator from an mrl filerbNzWrong size operator file!)openr#readrr/r%r)rfilenamefrrrrload_luts  zMorphOp.load_lutc Cs<|jdkrd}t|t|d}||jW5QRXdS)zSave an operator to an mrl fileNrWwb)rrrgwrite)rrirrjrrrsave_luts   zMorphOp.save_lutcCs ||_dS)z#Set the lut from an external sourceNr()rrrrrset_lutszMorphOp.set_lut)NNN) rRrSrTrUrr^rNrerkrnrorrrrrVs   rV) __future__rrHr+rrr%r;r<r rVrrrrs4