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Colin Berry’s Method and 3D Information

May 10, 2015 5 comments

it is presumptive to think the 3D information represents cloth-to-body distance.
It is presumptive because you must have a method in mind

clip_image001A reader writes:

Colin Berry’s method may provide synthetic cloth to body information represented by varying color density for close together body features such as fingers beside each other. It cannot provide proper relative spatial information for disparate features related to each other at a distance such as the tip of the nose and the outer edge of each cheek.  Dr. Berry’s method cannot generate the sort of spatial information we see in Petrus Soon’s 3D renditions.

You are possibly right that Colin’s method cannot produce meaningful, relative 3D information for “disparate features related to each other at a distance.”  That seems obvious when looking at his method. But is that 3D information really contained in the shroud image in the sense you suggest? Does it represent reality?

1) I’m still not convinced that the 3D information represents cloth-to-body distance. It works out, it seems to me, to somehow represent body shape but it is presumptive to think the 3D information represents cloth-to-body distance. It is presumptive because you must have a method in mind to even suggest it.

 2)  I certainly have serious reservations about the 3D work undertaken by Petrus Soons.  I suspect that the real 3D information on the shroud is more like what we see with ImageJ, the VP8 and John Jackson’s 3D corrugated cardboard plot exhibited at the U.S. Air Force Academy Chapel in Colorado.

Might Colin’s method produce that kind of 3D data? I don’t think so, “synthetic” or otherwise. But I don’t know that. I think we need to wait and see.

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Beyond LUWU and LOTTO

July 29, 2014 7 comments

Colin has an interesting piece on his blog. Unfortunately due to his unconventional way of posting, what should have been, by itself, a posting is an unrelated addendum to a different topic. You will need to go to his posting, Might John P.Jackson have been right in thinking the frontal and dorsal images of the Man on the Turin Shroud are subtly different? Different imprinting configurations ("LOTTO" v "LUWU")? and scroll down, way-way down, until you see a picture of a man and his wife.

What does Colin see that is 3D in this?  He asked the question, not me. He doesn’t answer. He shows us a picture but I see nothing. Am I supposed to?

 

image

Colin writes:

Purpose of exercise: medieval (and modern folk too) are quite happy to take their brass rubbings, and see them for what they are – negative replicas that have an unusual quality, no longer life-like, but interestingly different. Few if any will feel a need to do what I have just done, using 20th/21st century  technology, simply to get more life-like images of the original subjects.

Could have fooled me. . . but I had my morning coffee. CLICK HERE to see quite a few brass rubbings, both negative and positive.

The Manoppello: This little cloth cannot be further ignored in Shroud research!

June 18, 2014 7 comments

ImageJ Used to Compare the Shroud of Turin and the Manoppello Image

June 14, 2014 25 comments

imageAs a guest posting, O.K. has put together an intriguing image-ladened paper, Shroud of Turin & Manoppello Image Comparison & 3D analysis: Or the magic of ImageJ.  

Jumping to near the end:

Suppose for a moment that both the Shroud and the Manoppello are authentic relics of Jesus. Being so different, they provide complementary information.  The monochromatic Shroud with it’s 3D properties provides a model Jesus outlook. It is essentially like an old sculpture. It provides information about shape of the object, but no other information like skin, eyes, hair colour.

But what [that] model needs is texture. And Manoppello, if genuine may provide it!

It is wonderfully fun to see how powerful ImageJ can be.

image

More on Colin Berry is up with an interesting posting about 3D enhancement

June 10, 2014 5 comments

imageColin Berry has been adding to his posting, Not all images that are 3D-enhancible have ‘encoded 3D information’. Click in and, if you have already read his posting, scroll down about halfway to Update: Sunday 8 June. He had made some interesting observations about ImageJ. Personally, I’m finding the software confusing and some options limited. Colin is helping all of us to see how confusing using ImageJ can be.

Final gasp (on this over-long posting): there was a curious and unexpected feature of those 3D images where 4 different images were tested together. Switching between Invert On versus Off in Image J did not produce so marked a transformation as expected (one expects the image to be turned inside out, like punching a hat to make a new one with the lining on the outside).

Read on. It’s not that I don’t understand Colin. I do. It’s ImageJ that I am struggling with. Having said that, however, I still think this package is much more powerful than the VP-8 Image Analyzer. Once we figure it out more completely, we may be able learn a great deal more about the image on the shroud.

Link to previous posting in this blog:  Colin Berry is up with an interesting posting about 3D enhancement

The above picture is from Colin’s site.

Shrek and the Shroud of Turin (Comment Promoted)

October 11, 2010 Comments off

image

The Peter Soons movie (http://vimeo.com/14072737) clearly suggests that an outline was artificially created, perhaps accidentally. The 3D glasses borrowed from a Shrek DVD makes this obvious. Isabel Piczek, Barrie Schwortz and many others from STURP have made it clear that there are no outlines in the shroud’s image but gradual changes in tone instead. Moreover, John Jackson demonstrated that the image quenches at three to four centimeters depth. That is not so in the 3D image.

If you believe what you see with 3D glasses on, then Isabel, Barrie and John are wrong. I don’t think so. Thank you for alerting us to this problem.

Troubled by the New Shroud of Turin 3D Web Site

October 10, 2010 11 comments

The pastor of a large parish in New Orleans wrote to me by email:

I think this new 3D image is the most convincing scientific evidence yet for arguing that the shroud is authentic.”

image I strongly disagree. The pastor is referring to the red-cyan anaglyph image of the Shroud that you can see only with red and cyan 3D glasses. Personally, I feel that this is a work of art, an artist’s impression of what Jesus may have looked like, expressed in 3D. It doesn’t prove anything any more than the animated 3D movie, “Barbie and the Magic of Pegasus”  proves that horses can fly. (Have I changed my mind since my first posting about the site? Yes.)

Here is what the pastor wrote:

The red/cyan anaglyph of the face from the Shroud of Turin at the website shroud3d.com is startling. Regrettably, the size of the image is reduced on the website. Fortunately it is done with HTML so you can grab the bigger sized jpeg and save it on your computer. Do so right away before they reduce the size on the server. Here is the link:

Note: I have replaced the pastor’s long link with a TinyURL. You can see a bigger image (800 by 921 rather than the web page size set to 484 by 545)  just by using the following link. Do save a copy of the image on your computer and buy some inexpensive 3D glasses. Read on:

http://tinyurl.com/245d6h2

It is, of course, pointless to save this image unless you have red/cyan 3D glasses. The shroud3d website does have stereoscopic images for those who have the proper viewing equipment. It also has a short video showing slow and slight rotation of the image. But these are poor substitutions for looking at an anaglyph with 3D glasses. The anaglyph is fantastic. It will knock your socks off.

image I took the bigger image and inserted it into a PowerPoint presentation. It looks great on an eight foot screen. Now all I have to do is buy 3D glasses for an upcoming talk at my church. I found some paper ones for $25.00 per hundred. I also had a poster of the anaglyph jpeg printed at Staples. It works great, too.

I think this new 3D image is the most convincing scientific evidence yet for arguing that the shroud is authentic.

No! The anaglyph may not be very scientific, at all. And that is a major concern because the impression one gets from the website and probably most places this image is displayed is that it is scientific. It may be, but if so, how so.

image I am not at all convinced that the data found in the Shroud’s image supports the anaglyph on the website. I’m not convinced that adjustments that were made to the images (there seem to be many) are scientifically warranted. If this is so, if I am right, then the final product, the anaglyph at shroud3d.com must be thought of only as a work of art. Nothing more!

Red and cyan 3D glasses that I ordered from Amazon.com ($4.70) arrived earlier in the week. I have since examined the anaglyph for hours. I was glad to learn from the pastor — one of this blog’s readers — that the full size image was available and I have studied it imageon a high definition 55 inch monitor. My first reaction was not unlike our friend above. Really, do order some 3D glasses at Amazon and prepare to be amazed.

My second reaction was that there was something wrong.

Bernardo Galmarini, “the 3D expert that produced the conversion from 2D to 3D,” writes on the shroud3d site:

I thought at first, that in this more scientific conversion, the hidden information in the Shroud (3D information in the gray-scale), would be a nuisance or obstacle to produce a human representation of the face, and that I would have to struggle continuously against this. Strangely enough, this hidden scientific information in the Shroud became the key and the basis for this work, reducing my artistic work to only softening the “holes” and deformities (caused surely by the passing of time) and the adapting to what this scientific version commands you to do: filling in and normalizing the “holes” or “dead areas” in the hidden information of the linen. For example: the areas without information in the forehead have been corrected following the surrounding gray-scale with coherent information and with a normal human forehead in mind. This process was helped by the fact, that the central zone of the forehead and the bony structure of the orbits contain very coherent information and that of course was taken as a guideline.

That statement lacks needed clarity. There are certainly holes and deformities. Why is not clear in most cases. It seems completely unjustified to speculate that these are caused by the passing of time. Without knowing how the image was formed, without knowing much about how the shroud was stored or displayed over many centuries, we shouldn’t make such guesses.

bandinginface Exactly what are the holes and deformities? They have not been detailed on the website. The bloodstains certainly are a problem and to make adjustments for these is perhaps warranted. But what about other deformities? How is the problem of banding addressed? Banding, a variegated background pattern to the cloth, perhaps the result of how the thread of the cloth was bleached and having nothing to do with the passing of time, is certainly the single biggest deformity that exists. It gets peculiar treatment in this new 3D work. The left side of the face (our right) has been partially retouched to minimize the effect. The other side of the face is shaped as though there was no banding but the banding remains. Pictured here is an estimate of the banding in the area of the face.

At the bottom of the beard and the lower areas of the hair, darker areas that are not the result of banding are strikingly evident. These relatively dark areas don’t recede towards the background as expected for grayscale plotting. (You can’t see this without 3D glasses. Don’t even try.) What is the rationale for this obviously apparent artistic adjustment? Moreover, hair above the forehead pompadours frontward without grayscale tones to support it. This hair and facial hair treatment seems artistic.

The entire head and shoulders seem to be completely detached from the background. You can, with 3D glasses on, move your own head ever so slightly and see detached movement. (Again, you can’t see this without 3D glasses.) Galmarini speaks of “hidden scientific information,” presumably but not explicitly the grayscale. I can’t find any data in support of this phenomenon. It seems as though an artificial outline has been introduced around the human form. There does not seem to be any such outline on the Shroud. In fact, researchers, over the years, have noted this lack of outline because it is something that an artist, had an artist created the Shroud, would have certainly included. Interestingly, the areas of the lower neck and upper shoulders, though darker than the background, don’t recede into the background and don’t show detached movement. Most amazingly, the lower part of a prominent water stain above the face is now worn in the hair like a miniature yarmulke while the upper part of the stain adorns the background. This, to my way of thinking, strongly suggests the use of false outlines. What other reason can there be other than to enhance the 3D effect? 

The most surprising thing is that the grayscale tones that to the untrained eye look like highlights and shadows, but that in fact become the basis for plotting three-dimensionality, remain in place in the plotted image. If you plot a three-dimensional object from the grayscale density you should have something that looks like a stone statue. Whatever highlights and shadows seem to exist in any resulting computerized virtual-reality image should only be from artificially introduced light placed at a calculated angle and distance in the virtual world. This is what the VP8 Analyzer does and what other software packages such as POV-Ray do. But in the anaglyph in question, it looks as though the original image was stretched like a thin film over the calculated shape. Original highlights, shadows and even herringbone twill patterns are there.

I’m willing to be convinced that I am wrong, that the anaglyph in question is scientific. I would actually like this. If this were so we would have something that is truly amazing. Clarity is needed, however. Specifics are required. I would like to see how much of this conversion to 3D is reproducible in a scientific sense and how much is "only softening the ‘holes’ and deformities."

In order to claim that the 3D images on this site are scientific the steps and procedures must be reproducible by others, at least in theory. Documentation is needed.

  1. We should know the software or algorithm used to plot the image including any variables or settings used.
  2. The terminology “hidden scientific information” should be clarified. It is essential to understand how plotting software uses this data.
  3. Expose higher resolution images for examination if the work was done in higher resolution. While this image may be 800 pixels wide, the resolution is no better than 72 ppi. Ordinary books carry pictures at four times the number of pixels per inch.
  4. We should be able to see, in anaglyph form for comparison, the unadjusted, scientifically plotted part of the project so that we can judge for ourselves just how much of the final product is by way of adjustment.
  5. All adjustments made should be explained and justified.

It bothers me to think that these images will be used, as the pastor suggests, in presentations to show the 3D characteristics of the Shroud. These images are certainly being displayed in churches, in exhibits and on the internet without the qualification that this is art and not science. If that is so, it is most unfortunate.

On the other hand, if these images are truly scientific, then the unexplained screams out to be explained.

Don’t get me wrong. There is 3D data in the Shroud’s images. It is the most important quality for knowing that these are not images formed by reflected light as a painter would envision or a camera would capture a human form. The 3D data is a quality that must be accounted for in any hypothesis attempting to explain how the images were formed, be it miraculously, naturally, by fakery or even as honest art. Indeed, this quality, treated scientifically without various forms of electronic manipulation, sooner or later, may suggest how the images were formed.

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