The HP MediaSmart Webcam program can capture and manipulate video images from the webcam on the notebook computer. Some of the video features, such as facial-tracking, zooming, and Avatars, are controlled by software that interprets the image captured by the webcam to take an action.
For best results, the image being viewed must meet certain criteria. The programs may not operate properly if the criteria are not met. The actual programming algorithms and image criteria used by these applications are highly technical; however there are general rules of lighting, and composition or position of the subject that you can use to control quality.
The webcam is not as sensitive as your eye at identifying light values and textures, and the computer software is programmed to make decisions based on certain conditions. Most issues with poor video recognition can be resolved by considering the fundamentals of illumination and composition.