René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"imshow() producing \"inverted\" colors since 3.0.3","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\nSince 3.0.3 imshow() produces \"inverted\" colors, instead of just including the image as is.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nfrom PIL import Image\r\nimport matplotlib.pyplot as plt\r\n\r\nimg = Image.open(\"map.png\")\r\nplt.imshow(img)\r\nplt.savefig(\"plot.png\")\r\n```\r\n\r\nwith this image as input:\r\n![map](https://user-images.githubusercontent.com/48286302/58104034-f29de880-7bdb-11e9-9031-6660d0650a5d.png)\r\n\r\n**Actual outcome**\r\n![plot](https://user-images.githubusercontent.com/48286302/58102817-d13bfd00-7bd9-11e9-9e20-034f7d980ea1.png)\r\n\r\n**Expected outcome**\r\n![plot2](https://user-images.githubusercontent.com/48286302/58102968-13653e80-7bda-11e9-8cbb-4c2aafab27a5.png)\r\n(until 3.0.2)\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: win 7/10\r\n  * Matplotlib version: 3.0.3, 3.1.0\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): TkAgg\r\n  * Python version: 3.7.2\r\n  * Jupyter version (if applicable):\r\n  * Other libraries: Pillow (6.0.0)\r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\nmatplotlib installed from pip\r\n","author":{"url":"https://github.com/cyclehome","@type":"Person","name":"cyclehome"},"datePublished":"2019-05-21T14:32:13.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/14293/matplotlib/issues/14293"}