Getting inverted image from webcam

I am facing a problem, when using webcam command.

When my webcam started, if I try to preview webcam object, inverted image is produced without modification in the webcam properties.

How I can get correct video preview and image?

Answer 1

[Image Analyst]

It does not look like the generic USB webcam object has a flipping property.

So I don't think you can get a live flipped version. You'll have to physically turn your camera upside down, or else go with a more expensive machine vision camera that has such a flipping property. Or else just flip a snapped image after it's been snapped with flipud() or imrotate().

[Raj Thenua]

Thank you for suggestion but actually I am talking about laptop webcam. How I can make it upside down?

When use this webcam in the Image Acquisition Toolbox, with imaqtool, it is previwing the correct video. But when I create an object like

w=webcam;
preview(w)

or

snapshot(w)

in a script, I get an inverted preview/image.

It is not that way in my other laptop.

[Image Analyst]

I don't know - that's weird. I can't reproduce that behavior. For me it's not inverted. I suggest you call tech support.