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2012-08-24 04:18:52 -0600 | asked a question | Error reading YUV buffer Hello! I'm trying to get high resolution uncompressed images through the camera of an Android phone (Samsung Galaxy S3). I set width and height using VideoCapture.set(Highgui.CV_CAP_PROP_FRAME_WIDTH, width) and same for height, but whenever I go to a mid-high resolution, the following error starts appearing: I'm guessing it means that the buffer is not big enough to store all the data, which I understand, but there must be some way to allocate a bigger buffer. Does anybody know how, or any workaround? Thank you! |
2012-08-24 04:12:05 -0600 | answered a question | How to set camera resolution in OpenCV on Android? In case anybody ever finds this useful, I found a (partial) solution: If your VideoCapture variable is called vc, this should work: Mind that the combination of width and height must be one of the supported picture formats for your camera, otherwise it will just get a black image. You can get those through Camera.Parameters.getSupportedPictureSizes(). However, setting a high resolution appears to exceed the YUV conversion buffer's capacity, so I'm still struggling with that. |
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2012-08-23 09:59:05 -0600 | asked a question | How to set camera resolution in OpenCV on Android? Hello! I'm trying to develop an app for Android, and I would need to get a resolution as high as possible for the camera, through VideoCapture. Right now I'm stuck in the default 960x720, which is poor for what I need, and my phone, a Samsung Galaxy S3, is able to provide, theoretically, up to 8Mpx (3,264×2,448 for pictures, and 1,920×1,080 for video, according to Wikipedia). Is there any way to obtain a higher resolution? How? I'm really sorry if this has been asked before; I have been looking for hours and I have found nothing. Thank you for your time! EDIT: I'm running OpenCV v2.4, I forgot to mention. |