Proof of Photomanipulation

Mobertermy said:
Why wouldn't pole B and D be nearly overlapping according to the sightline?
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Answer me this.

If you extend my site line through the poles to the pentagon and then drew a perpendicular line to said site line through each pole, how far apart are they along that perpendicular site line? Are they overlapping in real life?
 
Gamolon said:
Answer me this.

If you extend my site line through the poles to the pentagon and then drew a perpendicular line to said site line through each pole, how far apart are they along that perpendicular site line? Are they overlapping in real life?
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Let me think about it. While I am can you tell me the appoximate location of where pole 3 would be in photo2?
 
Why wouldn't pole B and D be nearly overlapping according to the sightline?
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Because a sightline isn't a parallel projection. It radiates out from the point of the camera.
 
DGM said:
I'm not sure he realizes that the camera "sight line" can be off center of the image that is seen.
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So am I thinking this through correctly? A camera line of site is not a cone, but a trapezoid?
 
Mobertermy: Is the entire "line of sight" contained within this image? If you line up the center line of the features you see in the fore and back ground of this image is that the "line of sight" (in other words looking straight a head).


lloydandcabcloseup2.jpg
 
Gamolon said:
So am I thinking this through correctly? A camera line of site is not a cone, but a trapezoid?
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No. The line of sight might not be contained (or centered) within the image if the image is "cropped". (very common in digital photography). See above example (the sight line is way off to the right).

ETA: The line is way to the right (not in shot) in the fore-ground and just off center to the right in the background.
 
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BUT you can treat a photo as a pyramidal cone of N degrees. A [squared off] cone is a good way of thinking about it. You can still line up foreground/background and get a triangulation of where the camera is, (assuming you have enough features to work with).
 
drewid said:
BUT you can treat a photo as a pyramidal cone of N degrees. A [squared off] cone is a good way of thinking about it. You can still line up foreground/background and get a triangulation of where the camera is, (assuming you have enough features to work with).
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True. I think you touched upon it earlier. One of the troubles with analyzing digital photographs is it tough to determine the "original". Edits can be made in the camera and any of these edits can effect the line of sight. The image I posted is a dramatic example of this (albeit after the fact)
 
BCR said:
Not a bluff. It is a federal military reservation area. 'Public roads' pass through military reservations all the time, but when they do, they ain't 'public' no more.
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OK sounds fair enough but I don't recall any signs to that effect when I've passed through there. I look out for them next time.

Good thing is that it'll stop CIT filming taping any more lies there :)
 
Mobertermy said:
Well first of all, how do poles C and D work with that line of sight.

Second, your line of sight makes it look like the cab is completely to the left of the median grass when you can tell the line of sight goes through the back window and over the median grass.
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Answered in post number 1032 in case you missed it.*



*or ignored it.
 
alienentity said:
No freakin' way. You guys are still talking to it? You are wasting your precious time, gents.
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Alas, I've been all morning working on a map of the Central Asia/Caucuses pipelines. It serves as a mindless venture to give my eyes and brain a rest :eye-poppi
 
carlitos said:
What has prevented you from bringing your 'evidence' to a photography teacher? Are you incarcerated or something?
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My thought exactly! As Mo is clueless, to how photography works, exemplified by this 1000 post root canal, over lines of sight. Could you imagine trying to explain pixels, artifacts, etc... to it?

:jaw-dropp:eye-poppi:boggled::eek:
 
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