U ¶©Þa;0ãJ@sz dZddddddddd dd d d d d dd dd dd d dd d dd d d dd d d dd d dd d d d dd dd d d d d ddd d d d d d d d d d d d d d g@dddd dd d d dddd dd d d dddddd d d d d dd d d d d dddd d d d d d d d d d d d d d d d d d d d d d d d d d d d d g@gdœdddddd ddddddddd d dddddd ddd dddd dd!d d"d dd ddd#d"d"dd dd!d#d"d"d"dd dd d"d"d"d"ddd d"d"d"d"d"g@d$dd$dddd d%dd&d d$ddddd$d dd'dddd dd$d'dddd d"dddddd%d"d"ddddd%d(d"d"d ddd d"d"d"d"d%dd d"d"d"d"d"g@gdœd)d*d+d+d*d,dddd+d-d-d*d.d/ddd+d-d-d*d/dd0d&d*d*d*dddd&dd,d.d/ddddddd/ddddddddd0d&ddddddd&dddddg@d1d1ddddddd1dddddddddd$dddddddddddddddddddddddddddddddddddddddddddddg@gdœd)ddddd2d+d-d*ddddd2d+d-d*ddddd+d-d1d,dddd+d-d1d,dd2d2d+d-d.d/ddd+d+d-d1d/dddd-d-d1d,ddddd*d*d,dddddg@d2d2d-d,ddddd2d+d*dd0dddd-d*d,d0ddddd,dd0ddddddd0ddddddddddddddddddddddddddddddg@gdœd)d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3dd3d3d3d3d3d3ddd3d3d3d3d3ddd2d3d3d3d3ddd2d2d3d3d3ddd2d2d2d3d3ddd2d2d2d2g@d3d3d3ddd2d2d2d3d3d3dd2d2d2d2d3d3d3d2d2d2d2d2ddd2d2d2d2d2d2dd2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2g@gdœdd d0d0dddd4d$d0ddd&dd ddd0dd$dd ddddd&dd ddddddd ddddddd ddddddd4dddddddd$dddddddg@dd&d'dddd$d$d&dd d0d0dddd'd d0d0dddddd0d0ddddddd0ddddddddddddddd$dddddddd$dddddddg@gdœddd.d.dd$ddd$d.d,d,ddd&ddd.d,d/dd&dddddddddddd$dd&ddddddd&ddddddddddddddd$dddddddg@ddddddd$d$dd0d0d0d0ddddd0d0d0dddddd0d0ddddddd0ddddddddddddddd$dddddddd$dddddddg@gdœd)d*d+d+d*d,dddd+d-d-d*d.d/ddd+d-d-d*d/dddd*d*d*dddddd,d.d/ddddddd/ddddddddddddddddddddddg@d1d1ddddd$d$d1ddd0d0dddddd0d0dddddd0d0ddddddd0ddddddddddddddd$dddddddd$dddddddg@gdœd)ddddd2d+d-d*ddddd2d+d-d*ddddd+d-d1d,dddd+d-d1d,dd2d2d+d-d.d/ddd+d+d-d1d/dddd-d-d1d,ddddd*d*d,dddddg@d2d2d-d,ddddd2d+d*d/d0dddd-d*d,d0ddddd,d/d0ddddddd0ddddddddddddddddddddddddddddddg@gdœd5œ Zd6S)7u  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 EXIF tag. (ref.: https://www.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 ééééé'é2é.é>éDééé&é5éAééé é6ééé+éB)Z subsamplingZ quantizationé ééé éé éé#é/é%é@é3éé0ééé?éééé ééé ééééé") Zweb_lowZ web_mediumZweb_highZ web_very_highZ web_maximumÚlowZmediumÚhighÚmaximumN)Ú__doc__Zpresets©r8r8ú~/home/adriano.carvalho/ftp/files/BrinquedotecaVirtual/brinquedotecavirtual/venv/lib/python3.8/site-packages/PIL/JpegPresets.pyÚsbCùù÷ÿùù÷ÿùù÷ÿùù÷ÿùù÷ÿùù÷ÿùù÷ÿùù÷ÿùù÷ÿ€ç