I Dare You!

by peter_budo

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2answers
83 views

Can a ghostlike image be caused by a overlap with previous frame on an SD card?

Is it possible for a secure digital card to have a ghostlike image on a different frame, ff you shoot digital cards and do not reformat them? Could a ghost image appear from a previous frame number if ...
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3answers
124 views

Can it be detected that a photo has been altered using MacBookPro “Preview”?

I have some photos from Canon camera. I opened them in "Preview" in MacBookPro, changed some of the contrast and colors, and saved as. I am sending these altered photos to people, but wondered, is it ...
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1answer
136 views

Is this a real photo of NYC?

I found this somewhere online, unattributed. I'm wondering if it's synthetic or a real photo. If it's real, how has it been shot and/or post-processed to make it look so much like a computer game - ...
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2answers
4k views

How to identify if a photo is photoshopped without looking at its digital code

I found this similar question but it is about finding hints in the digital file :how-to-identify-photoshop-edited-files. I want to know if there is a way to do this without looking at the digital ...
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1answer
2k views

How to calculate object's height in pixels from an image? [duplicate]

Possible Duplicate: Calculate object size when I have physical pixel size I am working on the following formula to calculate distance of object from camera: distance to object (mm) = ...
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4answers
1k views

Is it possible to get a double exposure with a digital camera?

A lady took a photo on a ghost tour where three transparent figures appeared in the photo. The camera was a Pentax Optio S30 3.2 megapixel digital camera. This lady did not recognise the figures and ...
7
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4answers
3k views

How can I tell if a photo is real or faked?

How can I tell if a photo has been edited or manipulated? Are there techniques for distinguishing real photos from fakes? Are there software tools that can help? Are there things I can do in ...
4
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2answers
2k views

How to determine date photo shot or developed from pre-digital age pictures?

I hope to learn how to determine (approximately) when a picture was taken and/or developed. I have a few boxes of photos to be scanned but prior to doing so I would like to be able to have a better ...