stamatisg2002
Senior Member
How can we verify if a photo is the original or rigged (eg. Photoshop), if there are no metadata in the photo? Please, respond, is VERY important!
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Real or fake?
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Horoscope Fish
Senior Member
If you mean an iron-clad, 100% effective method for determining what/how/if a particular image was Photoshopped, there isn't one. At least not that I'm aware of. You can perform tests like Error Level Analysis but I don't think that's going to spot more subtle manipulations.
Not that I'm any expert but two give away signs I see a lot in less-than-ideal Photoshop jobs are tool-marks like repeated patterns (bad clone stamping) and incongruent light and shadow. I'm sure law enforcement people with real training have other far more sophisticated tools but I don't know what those are.
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Not that I'm any expert but two give away signs I see a lot in less-than-ideal Photoshop jobs are tool-marks like repeated patterns (bad clone stamping) and incongruent light and shadow. I'm sure law enforcement people with real training have other far more sophisticated tools but I don't know what those are.
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stamatisg2002
Senior Member
If I attach the picture here, can someone tell me if is touched with software?
You would need a forensic specialist and will require a great deal of pixel peeping to say with 100% confidence something has been photoshoped or not, assuming this is a world class forgery prepared by someone very skilled in the art of photo-manipulation.
That said, most forged images are not expertly done and can be spotted by small things like mis-matching shadows or other anomalies So yes, I think you should post as large a version of the photo you can and let us take a look at it.
That said, most forged images are not expertly done and can be spotted by small things like mis-matching shadows or other anomalies So yes, I think you should post as large a version of the photo you can and let us take a look at it.
Horoscope Fish
Senior Member
We could look at it and we could SPECULATE on whether or not it has been Photshopped but I don't think there are any professionals here. Still, no harm in having us take a look.
Just as a suggestion I'm sure there are websites out there where some real Photoshop guru's hang out, people really, REALLY skilled and professionally trained in its use... You might try searching Google for "photoshop forums" and see if you can get more help there if this is really important to you.
BackdoorArts
Senior Member
Do a web search regarding the winning photo of this year's World Press Photo of the Year and that will answer your question. There are ways of determining if it's a fake, but they aren't always accurate and they're not always agreed upon. If all you have is a jpeg, then it's going to be a SWAG for probably anyone here. If you want to let opinions fly, upload away, but I wouldn't put money down on the opinions unless they're 100% unanimous, and with common reason.
stamatisg2002
Senior Member
Well the photo in question was an screenshot of SMS sxchange possibly with Samsung or iPhone, but i can't determine if is real or fake. By experience I know it's easy to tamper with this kind of photos, but I can't say if it is real or someone tampered the conversation. I made some quick trials, and it's possible. But the lack of exif metadata troubles me a lot.
stamatisg2002
Senior Member
The problem is that there is no EXIF. Anyway, I'm not the experienced in that field. I only touch certain things with my photos. Exposure, contrast, e.t.c., I don't know very much... 
Fred Kingston_RIP
Senior Member
The lack of EXIF data means nothing... an example is this very site... photos posted here get the EXIF data stripped from them...
The problem is that there is no EXIF. Anyway, I'm not the experienced in that field. I only touch certain things with my photos. Exposure, contrast, e.t.c., I don't know very much...
That's my point. There's nothing in the EXIF data that would help you make a determination about authenticity. So it doesn't matter whether or not there is any EXIF data posted.
stamatisg2002
Senior Member
I'd like to post the pic, but there is a phone number on it, and I don't like to go public with it. On the other hand, if I remove it it will be tampered then! Aaaargh!!!! this is insane!!!! :uncomfortableness::chargrined::confusion:
Don Kuykendall_RIP
RIP :(
If the post is that controversial or is anyway incriminating to anyone then it would probably not be a good idea to post it here in an open forum.
Horoscope Fish
Senior Member
This is getting a little ridiculous.
stamatisg2002
Senior Member
Maybe. Anyway I'll think of something...
My sentiments exactly...
stamatisg2002
Senior Member
Please don't move the knife deeper in the wound Dave . My pride is already hurt!
. My pride is already hurt! Don Kuykendall_RIP
RIP :(
one of the cell phone forums might have some better ideas on this since it is a cell phone
I saw what you are referring to via the thread that you previously posted and deleted and it's definitely from a samsung galaxy phone (I have an S3).
The only thing you can do is look for signs of doctoring. Unfortunately this tool isn't online anymore: Image Forensics : Error Level Analysis but you may be able to reproduce the results.
FYI, the naming convention of screen captures from galaxy phones are in the format Screenshot_2013-05-21-12-45-00.png. so if what you have is a jpg or any other format then it has been re-saved and wasn't directly from the phone.
The only thing you can do is look for signs of doctoring. Unfortunately this tool isn't online anymore: Image Forensics : Error Level Analysis but you may be able to reproduce the results.
FYI, the naming convention of screen captures from galaxy phones are in the format Screenshot_2013-05-21-12-45-00.png. so if what you have is a jpg or any other format then it has been re-saved and wasn't directly from the phone.