1. A method for adjusting a convergence point for a stereoscopic image, the method comprising: determining that a characterized offset between a left eye image and a right eye image of a stereo image pair in a display environment does not equal a calibrated predetermined offset value used when the stereo image pair was created; and determining an adjustment factor that when applied to the stereo image pair at display time increases or decreases the characterized offset to produce the calibrated predetermined offset between the left eye image and the right eye image of the stereo image pair to adjust the convergence point for the display environment.