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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"JPG quality keyword in savefig","articleBody":"Hi,\n\nI want to change the JPEG compression ration in savefig.\nThere seem to be an undocumented extra keyword arguments as pointed at the matplotlib-devel list, but they don't have an effect:\n\n```\n         *quality*: The image quality, on a scale from 1 (worst) to\n             95 (best). The default is 75. Values above 95 should\n             be avoided; 100 completely disables the JPEG\n             quantization stage.\n\n         *optimize*: If present, indicates that the encoder should\n             make an extra pass over the image in order to select\n             optimal encoder settings.\n\n         *progressive*: If present, indicates that this image\n             should be stored as a progressive JPEG file.\n```\n\nI am using the GTKAgg backend. I also tried the Agg backend but JPG was not supported with this.\n\nI would like to have a proper documentation at http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.savefig and an implementation that works.\n\nCheers\n\nFrank\n","author":{"url":"https://github.com/fkbreitl","@type":"Person","name":"fkbreitl"},"datePublished":"2011-09-07T08:50:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/458/matplotlib/issues/458"}