So has anyone tried to do the same thing with real scanner pictures? Is it possible to turn negatives into color pictures?
It's more than possible to turn negatives into color pictures, because in the good old days negatives are what were used to create color pictures!
You see, way back before cameras were all digital, there was this stuff called "film". And the pictures captured on this antique "film" stuff were called negatives because the colors caught on the film were the opposite of the colors seen by the actual human eye.
In the developing process, the negatives were transferred with scientific precision onto photo sensitive paper in a lab like setting and if done correctly, the pictures came out in near to life COLOR!
But with the invention of Photoshop, you go to the filters options, select negative, wait 1.3 seconds and WAH-LAH! Full color photo from any negative picture.