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I have got a picture of CIMSS satellite and it is peculiarly showing two pictures continuously I am new on this picture effects

May I know is this any kind of effect given into it.

any help will be really appreciable

why it is showing two pictures of a picture

enter image description here

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closed as off-topic by Itai, mattdm, che, Paul Cezanne, Matt Grum Sep 3 '13 at 16:35

  • This question does not appear to be about photography within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

6  
This question has nothing to do with photography. –  Itai Sep 3 '13 at 13:05
    
what...it is not related to photography? –  Rajarshi Das Sep 3 '13 at 13:06
1  
Do you mean "what is an animated GIF?" –  mattdm Sep 3 '13 at 13:07
    
This is a file-format question and could be done with anything. It certainly does not come from a camera like that. –  Itai Sep 3 '13 at 13:08
1  
-1 Please prove that it is not a gif, or that it happened "on taking the photo from CIMSS". –  Unapiedra Sep 3 '13 at 14:25

3 Answers 3

This is a GIF file. A feature of GIF is that it can have multiple images stored within it and it will rotate through them. It was originally developed by Compuserve to allow for images to be loaded across types of computers which formerly didn't have common image formats (thus the interchange in the name). Interchange does not related to the fact it can animate the image, but in a time before video files could be transferred between system types and when video was too big to transfer over the Internet, it was a nice feature to be able to show basic animation.

As bandwidth increased and common formats like JPEG and MPEG were formed, it went mostly out of style, but still hangs around occasionally, primarily for the animated image sequence feature since it is smaller and easier than video.

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+1 I didn't know about the reason for "interchange", I have updated my answer slightly. –  damned truths Sep 3 '13 at 14:30
    
@damnedtruths - no problem, if you had had that part, I wouldn't have bothered with my answer, but figured some background was in order beyond simply a comment. :) –  AJ Henderson Sep 3 '13 at 15:17

This is a .GIF (Graphics Interchange Format) image. This format allows the creator to have the images swap (although this only happens on preset time intervals). This format is one of the formats commonly used on the internet, especially for animations.

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This is a guess, but the B+W image looks like near infrared and the color image is apparently some other sensor data colorized to make the small variations more noticable to humans. The colored image might be something like sea height from nominal, which is usually correlated pretty well to surface pressure.

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thank you....but it is always toggle ... –  Rajarshi Das Sep 3 '13 at 12:57
    
I think its real IR, not NIR. The colour version is the 11 micrometer band, and the other is maybe 3um, which is close to the one thermal cameras use (1.3um). –  Michael Nielsen Sep 3 '13 at 20:12
    
dammit! they call 0.7um (700nm, reddish-nir) the day/night band haha –  Michael Nielsen Sep 3 '13 at 20:16
    
The B&W was shot at around 5h34Z, around 1h34 local time. You can see the city lights still glowing. DR[?] looks like it's having a party! –  Stan Sep 5 '13 at 17:41

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