Because the image is faint, there is another interesting feature of the shroud. If you’re too far away or too close to it, it’s hard to discern the image. The ideal distance to view it is just a few feet away from it. And even at that distance it would be hard to discern without strong lighting. If it was created by a forger, how and why would he do this? It’s not ideal to present this to a group like a church setting and for any large mass of people to view it. And it would be hard to create this since when you’re close up you can’t discern the total image.
Here’s a closeup of the face:
Also, notice the image is “pixelated”. Because of the way the image is on the fabric, the image is not a continuous image, but more like comprised of “pixels”. How and why would an artist do this?