The number of pixels that can be captured by the CCD is it’s resolution. This is expressed as the number of pixels. Resolution can be actual or interpolated. The webcam can offer the maximum resolution for taking static photos while take videos at a lower resolution. Resolution can be expressed in the number of pixels in the horizontal and vertical axis, for example 640 X 480, or as a total number of pixels on the CCD, for example 1.3 megapixel.