OwlCyberSecurity - MANAGER
Edit File: ImageOps.cpython-38.pyc
U g� ^�F � @ s� d dl Z d dlZddlmZ dd� Zdd� Zdd � Zd/d d �Zd0dd�Zej ddfdd�Z d1dd�Z ej fdd�Z ej fdd�Zd2dd�Zd3dd �Zej d dfd d �Zd d!� Zd"d#� Zd$d%� Zd&d'� Zd(d)� Zd4d+d,�Zd-d.� ZdS )5� N� )�Imagec C s^ t | t�rBt| �dkr(| \}}\}}qRt| �dkrR| \}}}}n| } } }}||||fS )N� � )� isinstance�tuple�len)�border�left�top�right�bottom� r �./usr/lib/python3/dist-packages/PIL/ImageOps.py�_border s r c C s& t | t�r"ddlm} |�| |�} | S )Nr )� ImageColor)r �str� r Zgetcolor)�color�moder r r r �_color( s r c C sV | j dkrtd��n>| j dkrJ| j dkr@t|�dkr@|| | }| �|�S td��d S )N�Pzmode P support coming soon)�L�RGBr � z!not supported for this image mode)r �NotImplementedErrorr Zpoint�OSError)�image�lutr r r �_lut0 s r c C s" | � � }g }tdt|�d�D �]�}|||d � }|dk rnz d||< W n& tk rl |D ] }d||< qZY nX |�rVd}td�D ]}||| }q�|| d } td�D ]F} | || kr�| || } d|| < n|| | 8 < d} | dkr� q�q�|| d } tddd�D ]N} | || k�r.| || } d|| < n|| | 8 < d} | dk�r �qV�qtd�D ]} || �r^ �qv�q^tddd�D ]} || �r� �q��q�| | k�r�|�ttd��� q d| | } | | } td�D ]>}t|| | �}|dk �r�d}n|dk�rd}|�|� �q�q t| |�S )a Maximize (normalize) image contrast. This function calculates a histogram of the input image, removes **cutoff** percent of the lightest and darkest pixels from the histogram, and remaps the image so that the darkest pixel becomes black (0), and the lightest becomes white (255). :param image: The image to process. :param cutoff: How many percent to cut off from the histogram. :param ignore: The background pixel value (use None for no background). :return: An image. r r N�d � ���g �o@) � histogram�ranger � TypeError�extend�list�int�appendr )r �cutoff�ignorer# r Zlayer�hZix�nZcut�lo�hi�scale�offsetr r r � autocontrast@ sd r2 r! � c C s | j dkst�|dkr<d| kr4| kr4dksjn t�n.d| krd| krd| krddksjn t�t|d�}t|d�}|dk r�t|d�}g }g }g } td|�D ].} |�|d � |�|d � | �|d � q�|dk�rztd|| �} | D ]�} |�|d | |d |d t| � � |�|d | |d |d t| � � | �|d | |d |d t| � � q�n0td|| �} td|| �} | D ]�} |�|d | |d |d t| � � |�|d | |d |d t| � � | �|d | |d |d t| � � �q�| D ]�} |�|d | |d |d t| � � |�|d | |d |d t| � � | �|d | |d |d t| � � �q$tdd| �D ]0} |�|d � |�|d � | �|d � �q�| �d�} t| || | �S ) a� Colorize grayscale image. This function calculates a color wedge which maps all black pixels in the source image to the first color and all white pixels to the second color. If **mid** is specified, it uses three-color mapping. The **black** and **white** arguments should be RGB tuples or color names; optionally you can use three-color mapping by also specifying **mid**. Mapping positions for any of the colors can be specified (e.g. **blackpoint**), where these parameters are the integer value corresponding to where the corresponding color should be mapped. These parameters must have logical order, such that **blackpoint** <= **midpoint** <= **whitepoint** (if **mid** is specified). :param image: The image to colorize. :param black: The color to use for black input pixels. :param white: The color to use for white input pixels. :param mid: The color to use for midtone input pixels. :param blackpoint: an int value [0, 255] for the black mapping. :param whitepoint: an int value [0, 255] for the white mapping. :param midpoint: an int value [0, 255] for the midtone mapping. :return: An image. r Nr r! r r r r )r �AssertionErrorr r$ r) r �convertr )r ZblackZwhiteZmidZ blackpointZ whitepointZmidpointZredZgreenZblue�iZ range_mapZ range_map1Z range_map2r r r �colorize� sJ &. **0**.**. r7 )� �?r8 c C s2 | j | j }t|d �|d }||kr8| j||d�}n�t�| j||�}||kr�t| j| j |d �}||d kr�| j|d |f|d�} t|d | tdt |d d�� �} |� | d| f� nnt| j | j |d �} | |d kr�| j| |d f|d�} t|d | tdt |d d�� �} |� | | df� |S )aV Returns a sized and padded version of the image, expanded to fill the requested aspect ratio and size. :param image: The image to size and crop. :param size: The requested output size in pixels, given as a (width, height) tuple. :param method: What resampling method to use. Default is :py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. :param color: The background color of the padded image. :param centering: Control the position of the original image within the padded version. (0.5, 0.5) will keep the image centered (0, 0) will keep the image aligned to the top left (1, 1) will keep the image aligned to the bottom right :return: An image. r r )�resample) �width�height�float�resizer �newr r( �max�min�paste) r �size�methodr � centeringZim_ratioZ dest_ratio�outZ new_height�yZ new_width�xr r r �pad� s" $ $rH c C s6 t |�\}}}}| �||| jd | | jd | f�S )a/ Remove border from image. The same amount of pixels are removed from all four sides. This function works on all image modes. .. seealso:: :py:meth:`~PIL.Image.Image.crop` :param image: The image to crop. :param border: The number of pixels to remove. :return: An image. r r )r �croprB )r r r r r r r r r rI s rI c C sV |dkr| � � S |dkr"td��n0tt|| j ��tt|| j ��f}| �||�S dS )a� Returns a rescaled image by a specific factor given in parameter. A factor greater than 1 expands the image, between 0 and 1 contracts the image. :param image: The image to rescale. :param factor: The expansion factor, as a float. :param resample: What resampling method to use. Default is :py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. :returns: An :py:class:`~PIL.Image.Image` object. r r z!the factor must be greater than 0N)�copy� ValueErrorr( �roundr: r; r= )r Zfactorr9 rB r r r r0 s $r0 c C s | � | jtj|�| �|�S )aL Deform the image. :param image: The image to deform. :param deformer: A deformer object. Any object that implements a **getmesh** method can be used. :param resample: An optional resampling filter. Same values possible as in the PIL.Image.transform function. :return: An image. )Z transformrB r ZMESHZgetmesh)r Zdeformerr9 r r r �deform1 s rM c C s� | j dkr| �d�} | �|�}g }tdt|�d�D ]�}dd� |||d � D �}t|�dkrp|�ttd��� q2t�t j |�|d d }|s�|�ttd��� q2|d }td�D ]"}|� || � |||| }q�q2t | |�S ) a� Equalize the image histogram. This function applies a non-linear mapping to the input image, in order to create a uniform distribution of grayscale values in the output image. :param image: The image to equalize. :param mask: An optional mask. If given, only the pixels selected by the mask are included in the analysis. :return: An image. r r r r c S s g | ] }|r|�qS r r )�.0Z_fr r r � <listcomp>O s z equalize.<locals>.<listcomp>r r" r! r ) r r5 r# r$ r r& r' � functools�reduce�operator�addr) r ) r �maskr, r �bZhisto�stepr- r6 r r r �equalize? s rW c C sd t |�\}}}}|| jd | }|| jd | }t�| j||ft|| j��} | �| ||f� | S )z� Add border to the image :param image: The image to expand. :param border: Border width, in pixels. :param fill: Pixel fill value (a color value). Default is 0 (black). :return: An image. r r )r rB r r> r r rA ) r r Zfillr r r r r: r; rE r r r �expand^ s rX � c C s� t |�}d|d kr dks*n d|d< d|d krBdksLn d|d< d| kr`dk sfn d}|| jd || jd f}| jd |d d | jd |d d f}t|d �|d }t|d �|d }||kr�|d } |d } n4||k�r||d } |d } n|d } |d | } |d |d | |d } |d |d | |d } | | | | | | f} | j||| d�S )a� Returns a sized and cropped version of the image, cropped to the requested aspect ratio and size. This function was contributed by Kevin Cazabon. :param image: The image to size and crop. :param size: The requested output size in pixels, given as a (width, height) tuple. :param method: What resampling method to use. Default is :py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. :param bleed: Remove a border around the outside of the image from all four edges. The value is a decimal percentage (use 0.01 for one percent). The default value is 0 (no border). Cannot be greater than or equal to 0.5. :param centering: Control the cropping position. Use (0.5, 0.5) for center cropping (e.g. if cropping the width, take 50% off of the left side, and therefore 50% off the right side). (0.0, 0.0) will crop from the top left corner (i.e. if cropping the width, take all of the crop off of the right side, and if cropping the height, take all of it off the bottom). (1.0, 0.0) will crop from the bottom left corner, etc. (i.e. if cropping the width, take all of the crop off the left side, and if cropping the height take none from the top, and therefore all off the bottom). :return: An image. rY r g �?r8 r r )Zbox)r' rB r< r= )r rB rC ZbleedrD Z bleed_pixelsZ live_sizeZlive_size_ratioZ output_ratioZ crop_widthZ crop_heightZ crop_leftZcrop_toprI r r r �fito s2 " � rZ c C s | � tj�S )zq Flip the image vertically (top to bottom). :param image: The image to flip. :return: An image. )� transposer �FLIP_TOP_BOTTOM�r r r r �flip� s r^ c C s | � d�S )zi Convert the image to grayscale. :param image: The image to convert. :return: An image. r )r5 r] r r r � grayscale� s r_ c C s* g }t d�D ]}|�d| � q t| |�S )zc Invert (negate) the image. :param image: The image to invert. :return: An image. r r! �r$ r) r )r r r6 r r r �invert� s ra c C s | � tj�S )zq Flip image horizontally (left to right). :param image: The image to mirror. :return: An image. )r[ r �FLIP_LEFT_RIGHTr] r r r �mirror� s rc c C s< g }dd| d }t d�D ]}|�||@ � q t| |�S )z� Reduce the number of bits for each color channel. :param image: The image to posterize. :param bits: The number of bits to keep for each channel (1-8). :return: An image. r � r r r` )r �bitsr rT r6 r r r � posterize� s rf � c C s> g }t d�D ]&}||k r$|�|� q |�d| � q t| |�S )z� Invert all pixel values above a threshold. :param image: The image to solarize. :param threshold: All pixels above this greyscale level are inverted. :return: An image. r r! r` )r Z thresholdr r6 r r r �solarize� s rh c C sl | � � }|�d�}tjtjtjtjtjtjtj d��|�}|dk rd| � |�}|d= |� � |j d< |S | � � S )z� If an image has an EXIF Orientation tag, return a new image that is transposed accordingly. Otherwise, return a copy of the image. :param image: The image to transpose. :return: An image. i )r � r � � � rd N�exif)Zgetexif�getr rb Z ROTATE_180r\ Z TRANSPOSEZ ROTATE_270Z TRANSVERSEZ ROTATE_90r[ �tobytes�inforJ )r rm Z orientationrC Ztransposed_imager r r �exif_transpose s$ �� rq )r N)Nr r! r3 )r )N)r r )rg )rP rR r r r r r r2 r7 ZBICUBICrH rI r0 ZBILINEARrM rW rX rZ r^ r_ ra rc rf rh rq r r r r �<module> s* L T- U