(have to correct myself... the chamber is limestone, not granite.)
originally posted by: A51Watcher
Each digital camera sensor (brand) has its own specific noise pattern. The program has a database of all known camera types and it recognizes the
pattern.
That's a pretty cool feature!
After that the sensor noise is patched (digital patch work) by overwriting the RGB noise pixels with an average value of the surrounding or
found nearby pixels.
It is able to distinguish between camera noise and the original RGB colors in the video / image.
I trotted over to the website in your signature file and looked through that version of the QC video. It was interesting to see how the images were
adjusted. There's one spot that I keep noticing because there's shapes there that DO resemble hieroglyphs - but it appears to be a stone encrustation
rather than real hieroglyphs.
Please note that I am NOT skeptical of finding hieroglyphs inside the GP. In addition to crew marks, I think it's possible that the chambers were
painted in some fashion - the pyramid of Djoser is a good example of this. What we see in other tombs is that a picture and hieroglyphs are carved
into the wall and then painted; something that's done regularly throughout Egyptian history.
I think we can both agree that there's no carvings there and that the walls are NOT smoothed for carving (unlike the Pyramid of Unas, where the walls
ARE smoothed for carving the Pyramid Texts.)
So what did people in antiquity see? Either crew marks OR painted plaster is a likely guess (we know there's crew marks in the GP but we don't know
about plastered walls.) Crew marks would be in red ochre, and there's nothing in your processing that seems to bring out anything resembling crew
marks.
Plaster... I don't think it' would leave much of a trace. The pigment would have to soak through the plaster first before appearing on the walls as a
stain. I think plaster is very plausible, but I'm not seeing anything that looks like a part of a painting or partial hieroglyphs. Egyptian Blue
might be found as a background for a "starry ceiling" (very popular) or as items or clothing or on hair (things where fine detail doesn't matter) but
they didn't use it much for writing hieroglyphs.
I don't see signs of a starry ceiling there. There was a shape that MIGHT have been a star, but if a starry ceiling had been there, surely it would
have been mentioned (instead of "writing")
I would expect to see white and red and black and yellow if there's writing. Red stains the best, and that's the place I start looking for images is
near areas where a red color is detected.
I've worked on rock art (limestone) imaging at Painted Rock, on the Carrizo Plains of California (we are fortunate that most of the images were
recorded in the sketchbook of a woman who lived there in the late 1800's-early 1900's and we can compare what we process with what she recorded). The
red ochre really does produce a durable stain that can be detected even after centuries of weather (and even survive somewhat being used as a sheep
pen.)
And that's why I asked about the red coloring.