§
    	ÊjŒ  ã                  óT   — d Z ddlmZ ddlZddlZddlZddlmZ  G d„ d¦  «        ZdS )aõ  Background removal for ``background="transparent"`` image requests.

muse.ai only returns flattened RGB images, so transparency is produced locally
after generation: BiRefNet (via rembg) predicts a soft alpha mask, then the edge
colours are re-estimated (pymatting) so semi-transparent fur or hair does not
carry a tint of the old background.

Optional dependency: ``pip install 'muse2api[matting]'``. The model is loaded on
first use and cached in ``~/.u2net`` (downloaded automatically if missing).
é    )ÚannotationsNé   )ÚFeatureNotImplementedc                  ó&   — e Zd Zdd„Zdd„Zdd	„Zd
S )ÚMattingÚmodelÚstrÚreturnÚNonec                óR   — || _         d | _        t          j        ¦   «         | _        d S ©N)r   Ú_sessionÚ	threadingÚLockÚ_lock)Úselfr   s     ú1C:\Projects\Muse2API\src\muse2api\core\matting.pyÚ__init__zMatting.__init__   s#   € ØˆŒ
ØˆŒå”^Ñ%Ô%ˆŒ
ˆ
ˆ
ó    ÚdataÚbytesc                ó–  — 	 ddl }ddlm} ddlm} ddlm}m} n"# t          $ r}t          d¦  «        |‚d}~ww xY w| 
                    t          j        |¦  «        ¦  «                             d¦  «        }| j        5  | j        € || j        ¦  «        | _         ||| j        ¬¦  «        }	ddd¦  «         n# 1 swxY w Y   |                     |	                     d	¦  «        |j        ¬
¦  «        dz  }
|                     ||j        ¬
¦  «        dz  } |||
¦  «        }|                     |                     |dd¦  «        |
g¦  «        }t          j        ¦   «         }|                     |dz                       ¦   «                              |j        ¦  «        d¦  «                             |d¦  «         |                     ¦   «         S )z;Return ``data`` as an RGBA PNG with the background removed.r   N)ÚImage)Úestimate_foreground_ml)Únew_sessionÚremovezXbackground=transparent needs the optional matting extra: pip install 'muse2api[matting]'ÚRGB)ÚsessionÚA)Údtypeg     ào@g        g      ð?éÿ   ÚRGBAÚPNG)ÚnumpyÚPILr   Ú	pymattingr   Úrembgr   r   ÚImportErrorr   ÚopenÚioÚBytesIOÚconvertr   r   r   ÚasarrayÚ
getchannelÚfloat64ÚdstackÚclipÚ	fromarrayÚroundÚastypeÚuint8ÚsaveÚgetvalue)r   r   Únpr   r   r   r   ÚexcÚsrcÚcutÚalphaÚrgbÚfgÚrgbaÚbufs                  r   Úremove_synczMatting.remove_sync   s"  € ð		ØÐÐÐØ!Ð!Ð!Ð!Ð!Ð!Ø8Ð8Ð8Ð8Ð8Ð8Ø1Ð1Ð1Ð1Ð1Ð1Ð1Ð1Ð1øÝð 	ð 	ð 	Ý'ð2ñô ð ðøøøøð	øøøð �jŠj�œ DÑ)Ô)Ñ*Ô*×2Ò2°5Ñ9Ô9ˆØŒZð 	5ð 	5ØŒ}Ð$Ø + ¨D¬JÑ 7Ô 7�”Ø�&˜ d¤mÐ4Ñ4Ô4ˆCð	5ð 	5ð 	5ñ 	5ô 	5ð 	5ð 	5ð 	5ð 	5ð 	5ð 	5øøøð 	5ð 	5ð 	5ð 	5ð
 —
’
˜3Ÿ>š>¨#Ñ.Ô.°b´j�
ÑAÔAÀEÑIˆØ�jŠj˜ B¤JˆjÑ/Ô/°%Ñ7ˆØ#Ð# C¨Ñ/Ô/ˆØ�yŠy˜"Ÿ'š' " c¨3Ñ/Ô/°Ð7Ñ8Ô8ˆÝŒj‰lŒlˆØ�Š˜ ™×*Ò*Ñ,Ô,×3Ò3°B´HÑ=Ô=¸vÑFÔF×KÒKÈCÐQVÑWÔWÐWØ�|Š|‰~Œ~Ðs"   ‚ ›
:¥5µ:Á>/B9Â9B=Ã B=c              ƒ  óF   K  — t          j        | j        |¦  «        ƒ d {V —†S r   )ÚasyncioÚ	to_threadrA   )r   r   s     r   r   zMatting.remove7   s.   è è € ÝÔ& tÔ'7¸Ñ>Ô>Ð>Ð>Ð>Ð>Ð>Ð>Ð>r   N)r   r	   r
   r   )r   r   r
   r   )Ú__name__Ú
__module__Ú__qualname__r   rA   r   © r   r   r   r      sP   € € € € € ð&ð &ð &ð &ðð ð ð ð6?ð ?ð ?ð ?ð ?ð ?r   r   )	Ú__doc__Ú
__future__r   rC   r*   r   Úerrorsr   r   rH   r   r   ú<module>rL      s…   ðð	ð 	ð #Ð "Ð "Ð "Ð "Ð "à €€€Ø 	€	€	€	Ø Ð Ð Ð à *Ð *Ð *Ð *Ð *Ð *ð#?ð #?ð #?ð #?ð #?ñ #?ô #?ð #?ð #?ð #?r   