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[–] [deleted] 1 point 2 points (+3|-1) ago  (edited ago)

[Deleted]

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[–] Are_we__sure 1 point -1 points (+0|-1) ago  (edited ago)

You can't see that video in raw form any longer.

You also have never seen this video in a lossless format because some info was lost as it was captured. Gopro videos are heavily compressed into the mp4 format using the H.264 codec.

Broadcast TV uses much higher end cameras. So this is probably transcoded during editing. Another transcode happens when it's compressed for the web and then another round of compression when you make a jpeg out of it. If you're not dealing in what is know a lossless codec, you lose little bits of information all along the way and you have artifacts. Areas where artifacts would occur are borders, especially those with high contrast.

When you start with a high quality image, you can retain a pretty good image all the way through, but you are not going to avoid artifacts. Video artifacts are more noticeable when zoomed in.

You also have the issue of the video can only record so many levels of light, what photographers call dynamic range. If you notice at the beginning of the clip the camera catches the sun and that part of the image is completely blown out. It's not shades of white, it's just all white. If 100 represents the highest brightness that can be captured on that camera setting and you try to capture something that is like 120...like the direct sun may be...that's what you get. Pure White, no detail. An area that is 101 in brightness would look the same as a brightness of 200. With digital once you "clip" the top part of the range, it's gone. If you try to color correct that image, you couldn't bring that clipped part back, because there is basically no variations of color to work with. That info is gone.

The same thing happens on the other edge of the dynamic range. If you have too little light, it goes full black. That is what's happening here. What you are seeing is I believe the back side of a wave as it's cut off from the sun. What appears to be something black breaking the surface of the water is, I believe a patch of the surface of the water, losing light and thus appearing black. There are glints of sun on top of the wave and you just created a boundary of pure white to pure black. GoPros have automatic exposure which means the lens is opening and closing as you film, there's a tiny lag each time.

You can take that picture into a photo forensics tool like this one and play around with it. That pure black area does not look like a human form, it doesn't have curves so much as zig and zags like the letter Z. Not the glint of white light there is water is not somebodies head.

Also looking at this some more there are three life vests in the picture. Assuming there are people in each of those life vests, there's someone next to fuddy. That person would be facing the other way and then you go from yellow on the sole of a sneaker to black pants to lifevest. That actually looks pretty good, black pants could account for both lack of light and the zig zag.....wonder if there's more video of about that moment. EDIT: The guy who annotated the images identifies Fuddy as the person facing the other way. He even identifies her leg in the photo right before this. THE SPOT where he claims to see a diver surface, IS EXACTLY WHERE HE JUST IDENTIFIED HER LEG. Is the diver supposed to go through her body? It's the same spot. It's under a half second of time, her body would still be right there. Unbelievable.

https://29a.ch/photo-forensics/#forensic-magnifier

Try it with these tools and play around.

Level Sweep

Luminance Gradient

Principal Component Analysis

Photo compression artifacts + not enough dyanmic range + pareidolia accounts for this.

Pareidolia is the human tendency to see patterns in randomness. We are really, really good at connecting the dots. by the way if you turn your head to left and look at the image, the illusion is pretty much broken.

https://img.huffingtonpost.com/asset/55ad31781500002d00173856.jpeg

*dunno what the yellow bit is on the left. Edit see above....could be a sneaker.

Can anypoint to the original broadcase footage and say when this clip happens?

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[–] crazy_eyes 0 points 3 points (+3|-0) ago 

So, covering up for murder is your thing?

dangerous

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[–] Blacksmith21 [S] ago  (edited ago)

Transcoding during editing. It was shot in native 1080p. No transcoding other than probably H.264 to MPEG4. No effect on the color gamut. No effect on native res. Mild lossiness. If original video was on a Hero black, it would have been shot in 4K with a 4:2:2 (I think, may be 4:4:2 don't recall) color space and 36 or 48-bit color depth.

Wanna fuck with me on this subject dipshit @are_we_sure?

That pretty much negates all of your bullshit. Next?

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[–] Blacksmith21 [S] ago 

Are you gonna tell me you know how to read a histogram now? So much wrong with your vomit. Not worth the time.

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[–] The_Savant ago