In 2002, the backing cloth (Holland cloth) was removed to restore the shroud. For the first time, the back of the cloth was photographed. And on the back side one can make out a faint image of the face. A study was then conducted to look at the image and use image processing to remove noise from the linen.
While the front of the shroud has been studied intensively over the years, the back had remained hidden under a piece of Holland cloth which was sewn by nuns to cover up damage caused by a fire.That protective layer was removed in 2002 for restoration and the back of the cloth was photographed.
The two scientists said they studied these photographs and used mathematical and optical techniques to process the images.
They found that the face that can be seen on the reverse of the shroud matches that of the front.
“We can detect the presence of a nose, eyes, hair, beard and moustache on the back surface that correspond in place, form, position and scale to those of the front,” Fanti said.
https://www.nbcnews.com/id/wbna4750663
The image on the other side of the cloth is not because the image bled through the cloth like paint. As mentioned in post 1608, the image is only on the topmost fibers of the threads.
The presence of a face on both sides of the shroud would seem an obvious feature in case of a fake: when making a print onto a cloth, paint soaks the cloth’s fibres and also reaches the back side.“This is not the case of the shroud. On both sides, the face image is superficial, involving only the outermost linen fibres.
https://www.abc.net.au/science/news/sto … 085582.htm
“When a cross-section of the fabric is made, one extremely superficial image appears above and one below, but there is nothing in the middle. It is extremely difficult to make a fake with these features.”He says this “double superficiality” could answer how the image got on to the cloth.
https://www.independent.co.uk/news/scie … 54962.html
The scientists, Fanti and Maggiolo, analyzed the photos published by Ghiberti to make the discovery.
In this work, some photos of the bs of the TS are
analysed by eidomatic procedures, in order to verify whether
and where there is a body image on the back of the sheet
and whether it corresponds in both position and form to the
front one (Maggiolo 2002/2003). Unfortunately, the original
photographs of the bs, owned by the Archdiocese of Turin,
have not yet been made available to the scientific world. The
only photographs available for analysis are those published
by Ghiberti (2002) and the results of scanning (Archdiocese
2000).
The double superficiality of the frontal image of the Turin Shroud
Giulio Fanti and Roberto Maggiolo
https://www.researchgate.net/publicatio … rin_Shroud
The only image I can find of the backside with the face area is from the above paper. Below is the raw photo and even without any processing one can make out the hair and some facial features. (The long rectangle was one part of the image that they tried to process out.)
Compare this with a negative of the face that I took at the Bible Museum:
https://debatingchristianity.com/forum/viewtopic.php?p=1107332#p1107332