Questions tagged [usb-camera]

37 questions
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Brightness, Contrast, etc capabilities not supported under Windows 10 UWP MediaDeviceControl.Capabilities

I am trying to add Brightness, Contrast, etc support to a USB WebCam application I am creating for Windows 10 UWP in C#. I am using three different USB cameras including a Logitech LogiCam. What I'm discovering is Brightness, Contrast, even…
twoputt
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how to set interval-intraframes with omxh264enc element in gstreamer on raspberry pi

I am using the omxh264enc to encode USB camera source on raspberry pi and stream the video, I would like to control the keyframe interval, but could not figure out how to, I currently using the following bash script : gst-launch-1.0 v4l2src !…
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Linux, wierd issues with camera on Debian system

So, I made some high speed opencv camera detection code, got it running on my debian labtop, and bought some 720p60 chinese usb cam. All worked well. However I wanted to make it run on my TinkerBoard S (tinkerOS - debian). Here the camera simply…
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Capturing two cameras at the same time using AForge library and VB.NET library

I need to process two USB webcams using VB.NET. I used AForge library for this. The problem is that just event handler of camera2 is triggered. How can I activate both cameras? Dim camera1 Dim camera2 Private Sub Form1_Load(sender As Object, e As…
rostamiani
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Save camera image to dynamic file name in Node-Red

I have a usb cam that take a picture from a node. But I want every image taken saved in different filename so that I can use all of images saved (not overwritten). So my question is, how to make the file named from a function node that give an…
Rhizudeen
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uvcvideo select timeout error modprobe unload

I get select timeout whenever I try to run a usb camera for ros usb camera node or object detection in opencv. I quick fix which worked for me was to use rmmod uvcvideo && modprobe uvcvideo quirks=128 nodrop=1 timeout=6000. I added the lines to…
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Unable to detect usb camera

I am trying to use 5 usb cameras on ubuntu 18.04.1 LTS in python using opencv. Individually they all work fine, but as I connect them all together the following happens: Mostly all cameras are successfully detected in start and are listed in lsusb…
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