o ]oiL@sXddlmZddlZddlmZmZdZgdZgdZGdd d Z Gd d d Z dS) ) annotationsN)Image _imagingmorphi) rr) r rrr r rr rrc@JeZdZdZdddZddZddZd 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() NcCsx|dur||_ng|_d|_|dur:ddgdgddgdgddggdd}||vr3d |d }t||||_dSdS) N1:(... ... ...)->0z4:(00. 01. ...)->1z4:(... .0. .1.)->1z4:(... .0. ..1)->1z4:(... .1. .0.)->0z4:(... .1. ..0)->0)rz4:(.0. .1. ...)->1z4:(01. .1. ...)->1)ZcornerZ dilation4Z dilation8Zerosion4Zerosion8edgezUnknown pattern !)patternslut Exception)selfrop_nameZknown_patternsmsgrV/var/www/html/kuke-dev/django-kuke/venv/lib/python3.10/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_SIZErrrr!rbuild_default_lut]s"zLutBuilder.build_default_lutcCs|jSrrr(rrrget_lutbszLutBuilder.get_lutcs(t|dksJdfdd|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..)lenjoin)rr0Z permutationrr/r_string_permuteeszLutBuilder._string_permutec Cs||fg}d|vr%|dd}tdD]}|||ddt|fqd|vrCt|}|d|D]\}}|||t|fq3d|vrqt|}|d|D]\}}|d d d d d d }dt|}|||fqQ|S) zpattern_permute takes a basic pattern and its result and clones the pattern according to the modifications described in the $options parameter. It returns a list of all cloned patterns.4rr rMNN0Z1)r&appendr3ROTATION_MATRIXr1 MIRROR_MATRIXreplaceint) rZ basic_patternoptionsZ basic_resultrresr nr0rrr_pattern_permutels$    zLutBuilder._pattern_permutec Cs<|g}|jD]<}td|dd}|s!d|d}t||d}|d}t|d}|d ddd}|||||7}q t |D]\}}|d d d d d }t |}||df||<qJt t D].}t |dd} ddt| | ddd} |D]\}} || rd dg| |j|<qql|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]Nr8r,r5)r)rresearchr>rgroupr?rC enumeratecompiler&r'binr1matchr) rrr.r"rr@r0resultr Z bitpatternrrrr build_luts2        zLutBuilder.build_lut)NN) __name__ __module__ __qualname____doc__rrr)r+r3rCrRrrrrrs # rc@r )MorphOpz*A class for binary morphological operatorsNcCsB||_|durt|d|_dS|durt|d|_dSdS)z&Create a binary morphological operatorN)rr)rrrR)rrrrrrrrs zMorphOp.__init__cCsb|jdur d}t||jdkrd}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|jdur d}t||jdkrd}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`.NrXrYrZ) rrr[r\rrOr`rarbrrcrrrrrOs  z MorphOp.matchcCs$|jdkr d}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`.rYrZ)r[r\r get_on_pixelsrarbrerrrrfs zMorphOp.get_on_pixelscCs\t|d}t||_Wdn1swYt|jtkr,d|_d}t|dS)z!Load an operator from an mrl filerbNzWrong size operator file!)openr%readrr1r'r)rfilenamefrrrrload_luts zMorphOp.load_lutcCsR|jdur d}t|t|d}||jWddS1s"wYdS)zSave an operator to an mrl fileNrXwb)rrrhwrite)rrjrrkrrrsave_luts  "zMorphOp.save_lutcCs ||_dS)z#Set the lut from an external sourceNr*)rrrrrset_luts zMorphOp.set_lut)NNN) rSrTrUrVrr_rOrfrlrorprrrrrWs   rW) __future__rrIr-rrr'r<r=rrWrrrrs