{"id":42448,"date":"2022-02-24T14:36:11","date_gmt":"2022-02-24T13:36:11","guid":{"rendered":"https:\/\/staging.kinolios.com\/?p=42448"},"modified":"2024-07-04T21:23:36","modified_gmt":"2024-07-04T20:23:36","slug":"supprimer-les-pixels-chauds-grace-a-davinci-resolve-studio","status":"publish","type":"post","link":"https:\/\/staging.kinolios.com\/en\/blog\/cinematography\/post-production\/supprimer-les-pixels-chauds-grace-a-davinci-resolve-studio\/","title":{"rendered":"[En\/Fr] Tutorial : Fix Hot Pixels in DaVinci Resolve Studio"},"content":{"rendered":"
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R\u00e9paration d’image en post-production<\/h3>\n

This post shows how to remove hot pixels in video with minimal artifacts using DaVinci Resolve and the Dead Pixel Fixer OFX plugin included in the Studio version of the software. Splitter\/Combiner and Layer Mixer nodes are used to retain image detail without degrading it.<\/p>\n

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As always, a full list of the articles in this blog can be found HERE<\/a>.<\/em><\/p>\n\n

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I recently spotted a lingering red spot on the rushes of my a7s2 in the bottom right edge of the image. Oddly, this spot only shows up in 4K24p Full frame mode, but not in the 1080p24 Full frame setting. It\u2019s strange as the sensor readout areas are the same and the oversampling of the 1080p mode suggests that as many pixels are read as in the 4K mode, so the defect should show up in both, but it\u2019s not.<\/p>\n

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I first did some research and tried remapping the sensor (an automatic process that takes place when the device is turned off every month to remove hot and dead pixels from the image, which can be forced by advancing the device internal date by 2 months in the menu). Unfortunately, the area remains visible and the body would therefore have to be sent for repair. I don\u2019t know if there are several hot pixels close to each other and the remapping cannot take them into account, or if the problem comes from elsewhere.<\/p>\n

My a7s2 being long out of warranty, I chose to see if it was possible to mitigate the problem in post-production to avoid the cost of a sensor repair.<\/p>\n

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Video tutorial
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I am using DaVinci Resolve Studio version 17.4.4. Here is a quick video tutorial demonstrating the process. Text explanations are available below.<\/p>\n

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