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    h                     @   s   d dl Z d dlZd dlmZ ejddgddgddgd	d
gddggejdZd ddZ	d!ddZ
d"ddZdd Zdd Zdd Zdd Zdd ZdS )#    N)	transformghs%C@g7[ I@g 	bR@gq-I@g9L@gSt$Q@g_vOD@gZdW@gmV}Q@gEGrW@dtypep   arcfacec                 C   s   | j dkst|d dks*|d dks*t|d dkrHt|d }d}nt|d }d| }t| }|d d df  |7  < t }|| | |jddd d f }|S )	N)      r   r      g      \@g      `@g       @r   )shapeAssertionErrorfloatarcface_dsttransSimilarityTransformZestimateparams)Zlmk
image_sizemodeZratioZdiff_xdstZtformM r   @/tmp/pip-unpacked-wheel-5oclok7i/insightface/utils/face_align.pyestimate_norm   s    r   c                 C   s&   t |||}tj| |||fdd}|S N        ZborderValuer   cv2
warpAffineimgZlandmarkr   r   r   Zwarpedr   r   r   	norm_crop   s    r    c                 C   s*   t |||}tj| |||fdd}||fS r   r   r   r   r   r   
norm_crop2    s    r!   c                 C   s   | j d | j d krL|}tt| j d | j d  | }t|| j d  }n6|}tt| j d | j d  | }t|| j d  }t| ||f}tj||dftjd}||d |j d d |j d d d f< ||fS )Nr         r   )r
   intr   r   resizenpzerosZuint8)ZimSheightwidthscaleZ
resized_imZdet_imr   r   r   square_crop%   s      &r,   c                 C   s   |}t |tj d }tj|d}|d | }|d | }	tjd| d|	 fd}
tj|d}tj|d |d fd}||
 | | }|jdd }tj| |||fd	d
}||fS )Ng     f@)r+   r   r"   )translation)rotationr   r   r   )r   r&   pir   r   r   r   r   )datacenterZoutput_sizer+   r/   Zscale_ratioZrott1Zcxcyt2t3Zt4tr   Zcroppedr   r   r   r   4   s$    
 r   c                 C   sl   t j| jt jd}t| jd D ]F}| | }t j|d |d dgt jd}t ||}|dd ||< q |S )Nr
   r   r   r"         ?r   r   )r&   r'   r
   float32rangearraydot)ptsr   new_ptsiptnew_ptr   r   r   trans_points2dG   s    rC   c                 C   s   t |d d |d d  |d d |d d   }t j| jt jd}t| jd D ]f}| | }t j|d |d dgt jd}t ||}|dd || dd< | | d | || d< qV|S )Nr   r"   r8   r9   r   r   )r&   sqrtr'   r
   r:   r;   r<   r=   )r>   r   r+   r?   r@   rA   rB   r   r   r   trans_points3dS   s    6rE   c                 C   s&   | j d dkrt| |S t| |S d S )Nr"   r   )r
   rC   rE   )r>   r   r   r   r   trans_pointsb   s    
rF   )r   r   )r   r   )r   r   )r   Znumpyr&   Zskimager   r   r<   r:   r   r   r    r!   r,   rC   rE   rF   r   r   r   r   <module>   s"    


