[FSPress]

Using a real human head to stamp the image would exactly get the 3-D information effect. You would not want to drench the cloth with the sugar solution if you wanted the sharpest clearest image, only a small amount on the face would be needed.

[Swordmaker]

Using a real human head to stamp the image would exactly get the 3-D information effect.

Sorry, no. Using a stamping scenario does not get the 3-D effect... not even close. It has been tried by numerous researchers. You wind up with a severely distorted caricature of a human face, not the subtle image of the shroud with its proportions intact. This is the same reason the "bacteria created" image fails... some of the image is from areas that there WAS no contact.