René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Post-processing depth images","articleBody":"Hi,\r\n\r\nthanks a lot for this nice tutorial!\r\nI have a (basic) question about the depth images. In the following, I refer to [this part](https://github.com/immersive-limit/Unity-ComputerVisionSim/blob/263e87c9cb58141afa2692ef9bf4bfac48afeca3/Unity/Assets/ImageSynthesis/Shaders/UberReplacement.shader#L48-L53) of the code. If I got it right, the process is as follows:\r\n1. The shader gets the depth value;\r\n2. The value is mapped between 0 and 1 considering the near and far planes;\r\n3. The output value then gets \"compressed\";\r\n4. The final output is then the depth image, which is saved to a PNG file.\r\n\r\nI now need to do some offline post-processing (i.e. outside Unity). How can I get back the original depth value for every pixel from the stored image?\r\nThanks a lot for the help!","author":{"url":"https://github.com/lucaBartolomei","@type":"Person","name":"lucaBartolomei"},"datePublished":"2020-10-23T07:33:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/5/Unity-ComputerVisionSim/issues/5"}