# Revision history [back]

To use an input camera -> give the ID of the camera, like "1"

that is meant literally, it's trying to read a string, not a number, so you have to write:

 <Input>"3"</Input>


To use an input camera -> give the ID of the camera, like "1"

that is meant literally, it's trying to read a string, not a number, so you have to write:

 <Input>"3"</Input>


apart from that, using images from a live webcam is probably a bad idea here, you'll end uf with a lot of badly adjusted, unsharp, under/over illuminated images and such. better prerecord the images, see, that you have the whole field of view covered, all your images are clear, and use an image list in the calibration config.

To use an input camera -> give the ID of the camera, like "1"

that is meant literally, it's trying to read a string, not a number, so you have to write:

 <Input>"3"</Input>


apart from that, using images from a live webcam is probably a bad idea here, you'll end uf with a lot of badly adjusted, unsharp, under/over illuminated images and such. better prerecord the images, see, that you have the whole field of view covered, all your images are clear, and use an image list in the calibration config.config. if you get a bad rms from the calibration, replace the worst images, and try again.