1. A computer-implemented method for simulating breast appearance of a woman after breast augmentation surgery, the method comprising the steps of: generating a three-dimensional representation of the upper front torso of the woman; performing a three-dimensional contour analysis by recognizing and analyzing the contours and the rate of change in the contours on the three-dimensional representation, wherein the three-dimensional contour analysis automatically recognizes and analyzes key anatomical features and locations of the upper front torso of the woman; constructing a virtual chest wall from the contoured three-dimensional representation by including a soft tissue envelope and skin color, wherein the constructed virtual chest wall results in a realistic image of the upper front torso of the woman; determining a volume value of an existing breast present on the three-dimensional representation; and performing a simulation of a breast implant, wherein the simulation shows a resultant breast shape and position with respect to the constructed virtual chest wall and a nipple position on the resultant breast shape, thereby simulating breast appearance of the woman after breast augmentation surgery.