René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Incorrect alpha compositing using \"matplotlib.pyplot.imshow\".","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\n`matplotlib.pyplot.imshow` definition alpha compositing is incorrect, references #3343.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nfrom matplotlib import pyplot as plt\r\n\r\nplt.figure(figsize=(8, 8))\r\nRGBA = plt.imread('RGB_Droplet.png')\r\nplt.imshow(RGBA)\r\nplt.show()\r\n```\r\n\r\n**Actual outcome**\r\n\r\n![image](https://user-images.githubusercontent.com/99779/33501848-f2097b12-d742-11e7-9bd2-824ce72d2cab.png)\r\n\r\n**Expected outcome**\r\n\r\nComposited in The Foundry Nuke:\r\n\r\n![image](https://user-images.githubusercontent.com/99779/33501902-1a3bcd4c-d743-11e7-953e-968ebbd3eec9.png)\r\n\r\nThe images used are available here:\r\n\r\n- [RGB_Droplet.png](https://drive.google.com/file/d/1Ct7o2TPWc1giFWSTYa4O0oyRljSWihIO/view?usp=sharing)\r\n- [RGB_Droplet_Over_White_Reference.png](https://drive.google.com/file/d/1uIT496wEz1pHmqcLYdlu2Cq5OkzQBjUQ/view?usp=sharing)\r\n\r\n**Matplotlib version**\r\n  * Operating system: `macOS`\r\n  * Matplotlib version: `'2.1.0'`\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): `'module://ipykernel.pylab.backend_inline'`\r\n  * Python version: `'2.7.13 |Continuum Analytics, Inc.| (default, Dec 20 2016, 23:05:08) \\n[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)]'`\r\n  * Jupyter version (if applicable): `notebook                  5.0.0                    py27_0`\r\n","author":{"url":"https://github.com/thomasmansencal","@type":"Person","name":"thomasmansencal"},"datePublished":"2017-12-01T20:35:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":20},"url":"https://github.com/9906/matplotlib/issues/9906"}