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I have a problem with onPreviewFrame of android Camera. I want to take the picture every frame, blur it and display it. I tried the onPreviewFrame method along with OpenCV, so I put the byte[] in a Mat, blur it and convert the Mat to a Bitmap, but the image that I get converting the mat is always in landscape mode, but I have to display it in portrait mode. I read that all the methods of Android Camera don't change the order of byte[] received from onPreviewFrame(), I tried changing myself the byte or rotate the Mat but it get very slow. There's a way to get the byte[] to the correct orientation, or to get every frame the image always in a portrait mode?

I never used Camera2 api, there's a simple and fast way to get every frame the Image?

Quarillion
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  • Unfortunately, both old and new Camera API deliver the preview pixels in their natural order. You can [use OpenCV](https://stackoverflow.com/a/40089154/192373) to rotate a Mat efficiently, or apply rotation during display, with no overhead. – Alex Cohn Jan 01 '18 at 13:27

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