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Questions tagged [image-analysis]

Image analysis is when one inspects an image or the properties of an image either manually or through various tools and algorithms including, but not limited to Fast Fourier Transform and Error Level Analysis (ELA).

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What might be the reason I cannot see the date a photo was taken in its metadata?

I was sent a .jpeg photo by gmail. It looks like it is pasted into the mail, but it also shows up as an attached file on the mail preview. Opening the mail however, the photo is in-line with the text. ...
Investicroc's user avatar
0 votes
0 answers
75 views

Traffic Camera IR image question

Recently me and my daughter were photographed by a Traffic IR camera for not wearing the seat belt.While my image when viewed carefully in digital form the belt could be seen.The black belt had turned ...
Management's user avatar
1 vote
2 answers
171 views

How to highlight an area of this photo by its color?

I have no knowledge at all of image editing and analysis, so I beg your help. I have a photo from which I want to highlight the brownest layer, indicated in the red rectangle. This is important ...
Daniel Valencia C.'s user avatar
2 votes
1 answer
502 views

What technique did Scott Mutter use in his famous photomontage "Untitled (Library)", and what meaning does that approach help convey?

I really like this photo by Scott Mutter so I was want to know about the techniques used.
mikehasaquestion's user avatar
3 votes
4 answers
806 views

Techniques and meaning in László Moholy-Nagy photo

This image below is called the Funkturm Berlin (Berlin Radio Tower) and is taken by László Moholy-Nagy. I have done so research but haven't found much. I was wanting to know the techniques used in ...
mikehasaquestion's user avatar
0 votes
1 answer
195 views

Man Ray Techniques

The surrealist photographer(Man Ray) uses techniques I'm unfamiliar with (photogram) And was wondering about the techniques used in this image, I've been read some good articles including this good ...
user avatar
1 vote
2 answers
185 views

Paul Strand- Wall street photo DoF?

I've been researching this but can't find anything concerning these specific question I've found a lot of other interesting things though. My questions are In the image wall street what type of DoF ...
user avatar
1 vote
2 answers
2k views

How to determine Spatial Resolution in an image?

I am new to the field of cameras and imaging. I am working with an industrial camera. I need to check if the camera captured sufficient detail in the image and whether the images are good enough to ...
Ishita's user avatar
  • 111
9 votes
3 answers
1k views

Is there a program that could analyze the "real" resolution of an image?

Let's take image A: 2560*1920 pixel image in perfect focus. Sharp as a razor. That's 5 Mpix. Let's take image B: image A resized to 5120*3840. It's now a 20 Mpix file, but there's no new data in the ...
Sinus has tentacles's user avatar
-3 votes
1 answer
157 views

One photograph or two?

There are two prints of the same subject (Lorina Liddell by Lewis Carroll), but I'm not sure if I'm seeing two different prints of the very same negative or they are two similar, but distinct shots of ...
Melorder Fallaburr's user avatar
7 votes
2 answers
646 views

How can I figure out precisely where someone was standing to take this old cityscape photograph?

This photograph of Spokane (source) was taken in 1915. I've identified six of the buildings in the picture, and would like to figure out where the photographer was standing so I can make a modern ...
Mark's user avatar
  • 873
2 votes
1 answer
230 views

Can I recreate this spark shower effect using a smartphone?

Original picture : https://www.instagram.com/p/BN2WgMujfIT/ Those flashy lines are what I'm talking about and the contrast of the whole picture in general, can I do this with a smartphone (with some ...
user87552's user avatar
8 votes
2 answers
336 views

Photo of an experiment

I have an experiment with the specimen 100m long and 3m wide. I would like to capture the the image of entire specimen (from top) for fixed time intervals to analyze the behavior with time using some ...
user26249's user avatar
0 votes
5 answers
18k views

How do I find the absolute color of someone's eyes in a photograph?

The color of my eyes is between green and blue. I've always been curious if it's more blue or more green. People's opinions are of course different, so I would like to find it out scientifically. How ...
gadelat's user avatar
  • 117
6 votes
4 answers
2k views

Analysis of a macro shot with very fast shutter speed

Recently I came across a macro photo here, with this properties: Focal Length: 105mm Shutter Speed: 1/3200 sec Aperture: f/4 ISO/Film: 200 So I am looking for possible reasons as to why such ...
Meysam's user avatar
  • 793
16 votes
3 answers
29k views

How to analyze images with Fast Fourier Transform method?

I am learning about analyzing images with the method of FFT(Fast Fourier Transform). The image I am analyzing is attached below: Portrait of woman posing on grass, by George Marks. Getty Images. And ...
Chuck Wang's user avatar