o
    'j6h[0  ã                   @  sÎ   d Z ddlmZ dg d¢g d¢gdœdg d¢g d¢gdœdg d	¢g d
¢gdœdg d¢g d¢gdœdg d¢g d¢gdœdg d¢g d¢gdœdg d¢g d¢gdœdg d¢g d¢gdœdg d¢g d¢gdœdœ	ZdS )u  
JPEG quality settings equivalent to the Photoshop settings.
Can be used when saving JPEG files.

The following presets are available by default:
``web_low``, ``web_medium``, ``web_high``, ``web_very_high``, ``web_maximum``,
``low``, ``medium``, ``high``, ``maximum``.
More presets can be added to the :py:data:`presets` dict if needed.

To apply the preset, specify::

  quality="preset_name"

To apply only the quantization table::

  qtables="preset_name"

To apply only the subsampling setting::

  subsampling="preset_name"

Example::

  im.save("image_name.jpg", quality="web_high")

Subsampling
-----------

Subsampling is the practice of encoding images by implementing less resolution
for chroma information than for luma information.
(ref.: https://en.wikipedia.org/wiki/Chroma_subsampling)

Possible subsampling values are 0, 1 and 2 that correspond to 4:4:4, 4:2:2 and
4:2:0.

You can get the subsampling of a JPEG with the
:func:`.JpegImagePlugin.get_sampling` function.

In JPEG compressed data a JPEG marker is used instead of an EXIFÂ tag.
(ref.: https://exiv2.org/tags.html)


Quantization tables
-------------------

They are values use by the DCT (Discrete cosine transform) to remove
*unnecessary* information from the image (the lossy part of the compression).
(ref.: https://en.wikipedia.org/wiki/Quantization_matrix#Quantization_matrices,
https://en.wikipedia.org/wiki/JPEG#Quantization)

You can get the quantization tables of a JPEG with::

  im.quantization

This will return a dict with a number of lists. You can pass this dict
directly as the qtables argument when saving a JPEG.

The quantization table format in presets is a list with sublists. These formats
are interchangeable.

Libjpeg ref.:
https://web.archive.org/web/20120328125543/http://www.jpegcameras.com/libjpeg/libjpeg-3.html

é    )Úannotationsé   )@é   é   é   é'   é2   é.   é>   éD   r   é   é   é&   r   é5   éA   r   r   r   é   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r	   r   r   r   r   r   r   r   r
   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )@é   r   é    r   é6   r   r   r   r   é   é   r   r   r   r   r   r   r   r   é+   éB   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )ÚsubsamplingÚquantization)@r   é   r   r   r   é   r   é   r   é   r   é   r   r   r   r   r   r   é   r   r   é   é#   é/   r   r   r   r   r!   é%   r#   é@   r   r   r   r!   r   é3   r%   r%   r   r   r!   r$   r&   r%   r%   r%   r   r   r"   r#   r%   r%   r%   r%   r   r   r#   r%   r%   r%   r%   r%   )@é   r   r'   r   r   r!   r   é0   r   é   r   r'   r   r!   r"   r   r'   r   r   é   r!   r   r	   r   r   r'   r*   r   r   r   r   r%   r   r   r!   r   r   r(   r%   r%   r!   r!   r   r   r(   é?   r%   r%   r   r"   r	   r   r%   r%   r%   r%   r(   r   r   r%   r%   r%   r%   r%   )@é   é   r-   r,   é	   r   r   r   r-   é   r/   r,   é   é
   r   r   r-   r/   r/   r,   r1   r   é   r)   r,   r,   r,   r   r   r   r)   r   r.   r0   r1   r   r   r   r   r   r   r1   r   r   r   r   r   r   r   r   r2   r)   r   r   r   r   r   r   r)   r   r   r   r   r   )@é   r3   r    r   r!   r   r   r   r3   r   r   r   r   r   r   r   r    r   r'   r   r   r   r   r   r   r   r   r   r   r   r   r   r!   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )@r   r   r   r   é   r-   r/   r,   r   r   r   r   r4   r-   r/   r,   r   r   r   r   r-   r/   r3   r.   r   r   r   r-   r/   r3   r.   r   r4   r4   r-   r/   r0   r1   r   r   r-   r-   r/   r3   r1   r   r   r   r/   r/   r3   r.   r   r   r   r   r,   r,   r.   r   r   r   r   r   )@r4   r4   r/   r.   r    r   r   r   r4   r-   r,   r   r2   r   r   r   r/   r,   r.   r2   r   r   r   r   r.   r   r2   r   r   r   r   r   r    r2   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )@é   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r5   r   r5   r5   r5   r5   r5   r5   r   r   r5   r5   r5   r5   r5   r   r   r4   r5   r5   r5   r5   r   r   r4   r4   r5   r5   r5   r   r   r4   r4   r4   r5   r5   r   r   r4   r4   r4   r4   )@r5   r5   r5   r   r   r4   r4   r4   r5   r5   r5   r   r4   r4   r4   r4   r5   r5   r5   r4   r4   r4   r4   r4   r   r   r4   r4   r4   r4   r4   r4   r   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   r4   )@r   r2   r2   r   r   r"   é"   r'   r2   r   r   r)   r!   r   r   r   r2   r   r'   r   r   r   r   r   r   r)   r   r   r   r   r   r   r   r!   r   r   r   r   r   r   r"   r   r   r   r   r   r   r   r6   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   )@r   r)   r*   r   r   r   r'   r'   r)   r   r   r2   r2   r   r   r   r*   r   r2   r2   r   r   r   r   r   r2   r2   r   r   r   r   r   r   r2   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   )@r   r0   r0   r   r'   r   r   r'   r0   r.   r.   r   r   r)   r   r   r0   r.   r1   r   r)   r   r   r   r   r   r   r   r   r   r   r   r'   r   r)   r   r   r   r   r   r   r)   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   )@r    r   r    r   r   r   r'   r'   r   r2   r2   r2   r2   r   r   r   r    r2   r2   r2   r   r   r   r   r   r2   r2   r   r   r   r   r   r   r2   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   )@r,   r-   r-   r,   r.   r   r   r   r-   r/   r/   r,   r0   r1   r   r   r-   r/   r/   r,   r1   r   r   r   r,   r,   r,   r   r   r   r   r   r.   r0   r1   r   r   r   r   r   r   r1   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )@r3   r3   r    r   r   r   r'   r'   r3   r   r   r2   r2   r   r   r   r    r   r2   r2   r   r   r   r   r   r2   r2   r   r   r   r   r   r   r2   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   r'   r   r   r   r   r   r   r   )@r4   r4   r/   r.   r    r   r   r   r4   r-   r,   r1   r2   r   r   r   r/   r,   r.   r2   r   r   r   r   r.   r1   r2   r   r   r   r   r   r    r2   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   )	Úweb_lowÚ
web_mediumÚweb_highÚweb_very_highÚweb_maximumÚlowÚmediumÚhighÚmaximumN)Ú__doc__Ú
__future__r   Úpresets© rC   rC   ú^/var/www/html/chefvision.cloud.itp360.com/venv/lib/python3.10/site-packages/PIL/JpegPresets.pyÚ<module>   sb    A÷ÿ÷ÿ÷ÿ÷ÿ÷ÿ÷ÿ÷ÿ÷ÿ÷ÿ 
æ