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From: aldoric@gmx.de
To: linux-media@vger.kernel.org
Subject: [Question] USB-Web-Cam becomes slower as darker the image becomes
Date: Tue, 14 Jul 2009 18:14:28 +0200	[thread overview]
Message-ID: <20090714161428.49520@gmx.net> (raw)

Hello,

I'm new to v4l-development. I was able to get the raw image into my application successfully. But the current problem is not only in limited to my self-developed application.

All of my USB-webcams will get less FPS as darker the image becomes. In optimal cases I get around 30 frames per second. But if it's really dark I only get around 2-3 FPS.

I think that it might be the software gamma-correction. On v4l2ucp I didn't find a way to disable it.

What do you think is the way to fasten up the video-recording? How can I disable software gamma-correction if this is the reason?

Thanks in advance


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             reply	other threads:[~2009-07-14 16:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-14 16:14 aldoric [this message]
2009-07-14 16:32 ` [Question] USB-Web-Cam becomes slower as darker the image becomes Michael Riepe

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