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4 votes
3 answers
504 views

Image properties for social media?

My experience of social media is extremely limited, but I have occasionally been asked by a group to send them an image for use on their media. Sometimes as non-technical people only used to mobile ...
dmkonlinux's user avatar
  • 1,015
1 vote
3 answers
3k views

How can I detect if two files are actually the same image? [duplicate]

Let's assume a JPG file (or any other image/video file format), that I duplicate the file, and I modify the tags on the copy. Is there a way to verify that the image inside both JPG files is actually ...
J-F Cloutier's user avatar
101 votes
4 answers
19k views

What does an unprocessed RAW file look like?

I know people use fancy software like Lightroom or Darktable to post-process their RAW files. But what if I don't? What does the file look like, just, y'know, RAW?
mattdm's user avatar
  • 143k
1 vote
2 answers
680 views

Why doesn't PNG show more detail than JPEG in a converted NASA image?

I have a really limited knowledge of photography, so, bearing that in mind, here is my problem. I downloaded an IMG file with a separate label file from NASA PDS because I wanted to visualise the ...
Gaetano's user avatar
  • 11
11 votes
4 answers
20k views

What are the merits of using a particular image file format?

If I edit an image file using some application like GIMP, Photoshop or MS Paint, while saving I will be asked to select the required file-format. There are different formats available, the common ones ...
AIB's user avatar
  • 726
5 votes
3 answers
8k views

How can I resize Raw images and store them back in the original format?

I have some raw images captured using Canon,Nikon,Minolta cameras.(*.CR2, *.NEF, *.MRW) I want to change resize them and store them back as the original format. I checked in two tools, Canon Digital ...
goldenmean's user avatar
  • 1,219