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Windows : AviRaw 1.4 |
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on Thursday, January 15, 2004 - 04:18 AM GMT - 3508 Reads
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Carsten A. Arnholm's program for raw acquision of pictures from the popular Philips Vesta and ToUcam webcams has a new version...
What is the RAW modification? Essentially, it is a firmware modification that allows elimination of the usual in-camera processing that all webcams perform. Such processing causes loss of image resolution. With the RAW mod we can capture the information directly as seen by the CCD. But to use such RAW image information, we need special software. This is where AviRaw comes in. AviRaw can reconstruct the colour information in a way that does not cause so much image resolution loss, and it can convert the RAW avi into normal AVIs that can be processed by the well known processing programs (IRIS, K3CCDTools, Registax and several others).
AviRaw allows opening of an AVI and
* preview as ordinary RGB (decoded via codec as usual)
* preview as RAW luminosity (Y channel only) from ordinary or RAW captures
* preview as RAW colour, debayerized from Y channel (works only for RAW captures)
* save as new AVI using the selected mode
* properly handle dropped frames for preview and save (dropped frames are not checked)
* Save individual R,G,B channel AVIs from normal or debayerized mode
To use the RAW features, a Philips webcam format is assumed. AviRaw supports both Vesta and ToUcam style RAW cameras. Select one of the Vesta or ToUcam options in the toolbar combo box. This has been tested successfully on RAW Vesta and ToUcam cameras (both with colour CCD chips).
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