1. An apparatus comprising: an endoscope held by a robotic surgical system, the endoscope comprising a stereoscopic optical channel; an image capture unit coupled to receive light via the stereoscopic optical channel; an image processing system coupled to receive images from the image capture unit; a stereoscopic display system coupled to display images received from the image processing system; a first image captured by the image capture unit at a first time and a second image captured by the image capture unit at a second time different from the first time, the first image comprising a combination of a first visible image and a first fluorescence image, the second image comprising a second visible image and no fluorescence image; an artificial fluorescence image, generated by the image processing system from the first fluorescence image; a first stereoscopic display image, generated by the image processing system from the first image, and output by the stereoscopic display system; and an augmented stereoscopic display image, generated by the image processing system from the second visible image and the artificial fluorescence image, and output by the stereoscopic display system.