
    i                         d dl Z d dlZd dlZd dlZd dlZd dlmZmZm	Z	 d dl
mZ d Zd Zd Zd Zd Zd	 Zd
 Zd Zd ZdS )    N)CLEAN_VECTOR_DIRMIN_DOT_AREAVECT_GLYPH_DIR)
ensure_dirc                     t          j        | t           j                  }|d S t          t	          j        |dk                        S )Nr   )cv2imreadIMREAD_GRAYSCALEintnpsum)pbm_pathimgs     &/code/app/lib/handwriting/vectorize.py_pbm_black_countr      s<    
*Xs3
4
4C
{trvcQh       c                     	 t          | d          5 }d|                                v cd d d            S # 1 swxY w Y   d S # t          $ r Y dS w xY w)Nrz<pathF)openread	Exception)svg_pathfs     r   _svg_has_pathr      s    (C   	'Aaffhh&	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	' 	'   uus,   A 5A 9A 9A 
AAc                 ^    t          j        |           dk    rt          j        |           } | S )N   )r   meanr   bitwise_not)binarys    r   ensure_binary_polarityr       s)    	wv((Mr   c                     t          j        | d          \  }}}}t          j        |           }t	          d|          D ](}||t           j        f         t          k    r	d|||k    <   )|S )N         )r   connectedComponentsWithStatsr   
zeros_likerangeCC_STAT_AREAr   )r   
num_labelslabelsstats_outis          r   remove_small_noiser/   !   sq    #&#CFA#N#N Jq
-

C1j!! # #C$$%55"C!Jr   c                     t          j        |           }|| S t          j        |          \  }}}}| |||z   |||z   f         S )N)r   findNonZeroboundingRect)r   ptsxywhs         r   	safe_cropr8   *   sS    
/&
!
!C
{!#&&JAq!Q!a!e)QQY&''r   c                    t          |           } t          j        | d          \  }}}}t          j        |           }t          j        |           }t          d|          D ]/}||t          j        f         }|dk     r
d|||k    <   &d|||k    <   0t          j        |t          j        d          }	t          j	        |          dk    r"t          j
        |	|dk                       dz  }
nd}
|
dk    r4t          j        |t          j        t          j        d	          d
          }t          j        |t          j        t          j        t          j        d	          d
          }t          j        ||          } | S )Nr"   r#   P   r$      r      g      @)r<   r<   )
iterations)r    r   r%   r   r&   r'   r(   distanceTransformDIST_L2count_nonzeror   erodegetStructuringElementMORPH_ELLIPSEmorphologyExMORPH_CLOSE
bitwise_or)r   r)   r*   r+   r,   	protectedmain_strokesr.   areadistmean_strokes              r   preprocess_vectorrL   2   sx   #F++F#&#CFA#N#N Jqf%%I=((L1j!! , ,Q(()"99%(Ifk""(+L1%% s{A>>D	%%))gd<!#34559Sy%c&7@@
 
 
 #!#"3V<<	  L ^L)44FMr   c                 D   t           j                            | d          }t           j                            | t                    }t	          |           t          j        t           j                            |d                    }|st          d          |D ]}t           j                            |          }t          j	        |t          j
                  }|Ct          |          }t          j        t           j                            ||          |           d S )Nglyphs*_binary.pngz!No glyph binaries found to clean.)ospathjoinr   r   globRuntimeErrorbasenamer   r	   r
   rL   imwrite)out_dirsrc_dir
out_vectorfilesrQ   namer   b2s           r   clean_extracted_glyphsr]   Y   s    gll7H--Gg'788JzIbgll7N;;<<E @>??? 8 8w%%D#"677>v&&BGLLT22B77778 8r   c                     t          j        | t           j                  }|dS t          j        |ddt           j                  \  }}t          j        |          }t          j        ||           dS )NFr   r$   T)r   r	   r
   	thresholdTHRESH_BINARYr   rV   )png_pathr   r   r,   bwbw_invs         r   png_to_pbm_for_potracerd   k   sb    
*Xs3
4
4C
{uM#sC):;;EAr_R  FK&!!!4r   c                    t           j                            | t                    }t           j                            | t                    }t          |           t          t          j        t           j                            |d                              }|st          d          |D ]V}t           j        	                    t           j        
                    |                    d         }t           j                            || d          }t           j                            || d          }t          ||          st          |          }|d}	n|dk     rd}	n|d	k     rd
}	nd}	d|dd|dddddt          |	          ddg}
t          j        |
dt          j        t          j                   t#          |          s;d|dd|ddddddddg}t          j        |dt          j        t          j                   Xd S )NrO   z%No cleaned glyphs found to vectorize.r   z.pbmz.svg   r:   r<      r;   potracez-sz-oz--opttolerancez0.80z
--alphamaxz1.0z
--turdsizez--turnpolicyblackT)checkstdoutstderr1)rP   rQ   rR   r   r   r   sortedrS   rT   splitextrU   rd   r   str
subprocessrunPIPEr   )rW   rX   out_dir_svgrZ   ra   stemr   r   black_countturdsizecmd	cmd_retrys               r   vectorize_glyphs_with_potracerz   u   s   gll7$455G',,w77K{49RW\\'>BBCCDDE DBCCC 8 8w 0 0 : :;;A>7<<]]];;7<<]]];;%h99 	 'x00HH2HH3HHH MM
  	s$zzWWWW X&& 	 I Njojo   m8 8r   )rS   rP   rq   r   numpyr   app.lib.handwriting.configr   r   r   app.lib.handwriting.io_utilsr   r   r   r    r/   r8   rL   r]   rd   rz    r   r   <module>r      s     				     



     U U U U U U U U U U 3 3 3 3 3 3! ! !      ( ( ($ $ $N8 8 8$  A A A A Ar   