Question about Logitech QuickCam Express Web Camera
When it gets darker and night time, nobody can see meon my webcam even there is light. But in the morning it's functioning good. Please help me on this problem
Several factors determine onscreen size of a video image produced by a Webcam. The actual Webcam hardware may be limited to a maximum resolution. The percentage of your screen filled by a Webcam image will be a factor based on your desktop resolution and the maximum resolution of the Webcam image. A third factor impacting image size is available bandwidth Webcam software may also play a role in determining image size, but in most cases the software is only limited by the Webcam output. There are several ways to optimize your results to make sure you send a Webcam image viewable at the highest resolution acceptable to relatives on the other end, while also optimizing your system to maximize available screen real estate with inbound images from relatives.
Webcam hardware is often a big limiting factor in determining maximum image size. Most Webcams on the market today output a maximum 640x480 image, which easily fills a television screen. Any of the Webcams currently available from Logitech, Creative, Apple, D-Link or the numerous niche companies marketing Webcams will support 640x480, although some produce better results than others. If you have a Digital Video camera capable of doubling as a Webcam, you may get a 720x480 maximum image size. Apple's iSight camera and some of the higher end Logitech cameras using CCD instead of CMOS image sensors produce excellent images at 640x480 in well-lit rooms.
Knowing 640x480 is the maximum image size, don't expect incoming video to fill your screen if you have your resolution at 1024x768. The graphic below is shows the relative portion of a 1024x768 screen filled by a 640x480 image at 50% of actual size. If you want the incoming video to fill your screen, reset the resolution of your monitor to 640x480 to properly accommodate the incoming video feed. This assumes your relatives are capable of sending 640x480 video from their end. If their sending limitation is 320x240, the best you can hope for is a video filling 50% of your 640x480 screen.
Posted on Nov 23, 2008
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Posted on Jan 02, 2017
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