B eAd)ã @shddlZddlmZmZdZddddddd d d g Zd ddd ddd ddg ZGd d „d ƒZGdd„dƒZdS)éNé)ÚImageÚ _imagingmorphiéééééééc@sJeZdZdZddd„Zdd„Zdd„Zd d „Zd d „Zd d„Z dd„Z dS)Ú 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 œ}||krhd |d }t|ƒ‚|||_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 dilation8Zerosion4Zerosion8ÚedgezUnknown pattern ú!)ÚpatternsÚlutÚ Exception)ÚselfrÚop_nameZknown_patternsÚmsg©rú@/var/www/html/venv/lib/python3.7/site-packages/PIL/ImageMorph.pyÚ__init__@s"  zLutBuilder.__init__cCs|j|7_dS)N)r)rrrrrÚ add_patternsYszLutBuilder.add_patternscs.ddg‰d‰t‡‡fdd„ttƒDƒƒ|_dS)Nrréc3s|]}ˆ|ˆ@dkVqdS)rNr)Ú.0Úi)ÚmÚsymbolsrrú _sz/LutBuilder.build_default_lut..)Ú bytearrayÚrangeÚLUT_SIZEr)rr)rrrÚbuild_default_lut\szLutBuilder.build_default_lutcCs|jS)N)r)rrrrÚget_lutaszLutBuilder.get_lutcs(t|ƒdkst‚d ‡fdd„|Dƒ¡S)z„string_permute takes a pattern and a permutation and returns the string permuted according to the permutation list. é Úc3s|]}ˆ|VqdS)Nr)rÚp)Úpatternrrrisz-LutBuilder._string_permute..)ÚlenÚAssertionErrorÚjoin)rr'Z permutationr)r'rÚ_string_permutedszLutBuilder._string_permutec Csò||fg}d|krN|dd}x.tdƒD]"}| | |ddt¡|f¡q(Wd|krŽt|ƒ}x.|d|…D]\}}| | |t¡|f¡qlWd|krît|ƒ}xN|d|…D]>\}}| d d ¡ d d ¡ d d ¡}dt|ƒ}| ||f¡q¬W|S) zÉpattern_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.Ú4éÿÿÿÿrrrÚMNÚNÚ0ÚZÚ1)r Úappendr+ÚROTATION_MATRIXr(Ú MIRROR_MATRIXÚreplaceÚint) rZ basic_patternÚoptionsZ basic_resultrÚresrÚnr'rrrÚ_pattern_permuteks"   zLutBuilder._pattern_permutec CsP| ¡g}x‚|jD]x}t d| dd¡¡}|sDd|d}t|ƒ‚| d¡}| d¡}t| d¡ƒ}| d d¡ dd¡}|| |||¡7}qWxFt |ƒD]:\}}|d  d d ¡ d d ¡}t  |¡}||df||<qšWxpt t ƒD]d}t |ƒdd…} ddt| ƒ| ddd…} x0|D](\}} | | ¡rd dg| |j|<qWqâW|jS)zlCompile all patterns into a morphology lut. TBD :Build based on (file) morphlut:modify_lut z(\w*):?\s*\((.+?)\)\s*->\s*(\d)Ú r%zSyntax error in pattern "ú"rr rú rÚ.ÚXz[01]Nr0r$r-)r"rÚreÚsearchr6rÚgroupr7r;Ú enumerateÚcompiler r!Úbinr(Úmatchr) rrr&rrr8r'ÚresultrZ bitpatternÚrrrrÚ build_lut‰s.      zLutBuilder.build_lut)NN) Ú__name__Ú __module__Ú __qualname__Ú__doc__rrr"r#r+r;rJrrrrr s" r c@sJeZdZdZddd„Zdd„Zdd„Zd d „Zd d „Zd d„Z dd„Z dS)ÚMorphOpz*A class for binary morphological operatorsNcCs<||_|dk r t|d ¡|_n|dk r8t|d ¡|_dS)z&Create a binary morphological operatorN)r)r)rr rJ)rrrrrrrr¸s zMorphOp.__init__cCsb|jdkrd}t|ƒ‚|jdkr,d}t|ƒ‚t |j|jd¡}t t |jƒ|j j |j j ¡}||fS)z‡Run a single morphological operation on an image Returns a tuple of the number of changed pixels and the morphed imageNzNo operator loadedÚLzImage mode must be L) rrÚmodeÚ ValueErrorrÚnewÚsizerÚapplyÚbytesÚimÚid)rÚimagerZoutimageÚcountrrrrUÀs  z MorphOp.applycCsB|jdkrd}t|ƒ‚|jdkr,d}t|ƒ‚t t|jƒ|jj¡S)zÈGet a list of coordinates matching the morphological operation on an image. Returns a list of tuples of (x,y) coordinates of all matching pixels. See :ref:`coordinate-system`.NzNo operator loadedrPzImage mode must be L) rrrQrRrrGrVrWrX)rrYrrrrrGÐs  z MorphOp.matchcCs$|jdkrd}t|ƒ‚t |jj¡S)z©Get 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`.rPzImage mode must be L)rQrRrÚ get_on_pixelsrWrX)rrYrrrrr[ßs zMorphOp.get_on_pixelsc CsHt|dƒ}t| ¡ƒ|_WdQRXt|jƒtkrDd|_d}t|ƒ‚dS)z!Load an operator from an mrl fileÚrbNzWrong size operator file!)ÚopenrÚreadrr(r!r)rÚfilenameÚfrrrrÚload_lutês  zMorphOp.load_lutc Cs<|jdkrd}t|ƒ‚t|dƒ}| |j¡WdQRXdS)zSave an operator to an mrl fileNzNo operator loadedÚwb)rrr]Úwrite)rr_rr`rrrÚsave_lutôs   zMorphOp.save_lutcCs ||_dS)z#Set the lut from an external sourceN)r)rrrrrÚset_lutüszMorphOp.set_lut)NNN) rKrLrMrNrrUrGr[rardrerrrrrOµs   rO) rAr%rrr!r4r5r rOrrrrÚs