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What the... an animated JPG?

Contributor ,
May 11, 2010 May 11, 2010

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The following image is being spread across Facebook for its comedic value... when I saw it in my newsfeed, I didn't think much of it.

Then I noticed that according to its extension, it's a JPG, not a GIF.

An animated JPG?! I've never seen one before. Am I just out of the loop, or is there sorcery involved here?

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Guest
May 11, 2010 May 11, 2010

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There is no rule that says you have to use GIF for animation.  I use jpg rather than convert to gif.

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Guest
May 11, 2010 May 11, 2010

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mjyeager wrote:

The following image...

There was no image related to this post.

JPG does not animate.

You either saw a series of JPG images rendered with javascript or you saw a GIF file named as a JPG. A web server and browser might still recognize the correct GIF filetype, even if the wrong extension has been added to the filename.

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Contributor ,
May 11, 2010 May 11, 2010

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Marian Driscoll wrote:

There was no image related to this post.

JPG does not animate.

You either saw a series of JPG images rendered with javascript or you saw a GIF file named as a JPG. A web server and browser might still recognize the correct GIF filetype, even if the wrong extension has been added to the filename.

Sorry, forgot the link.

http://i40.tinypic.com/ilkaps.jpg

What the heck is it?

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Guest
May 11, 2010 May 11, 2010

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That is a GIF file, renamed as a JPG file. Web browsers are smarter than the guy/gal that misnamed that file... and will display the image even with the wrong extension.

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LEGEND ,
May 11, 2010 May 11, 2010

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The link might end in .jpg but the full name of that file is "ilkaps.jpg.gif", save it to your desktop and you'll see.

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Guest
May 12, 2010 May 12, 2010

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Zeno Bokor wrote:

The link might end in .jpg but the full name of that file is "ilkaps.jpg.gif", save it to your desktop and you'll see.

The file is still served from the web site with a '.jpg' extension. The '.gif' is appended by the browser (optionally, depending on the browser - - Firefox saves with a '.jpg' on my computer). The browser recognizes the content of the file and realizes that it should display it as GIF.

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Guest
May 11, 2010 May 11, 2010

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Marian Driscoll wrote:

JPG does not animate.

Not sure what you definition of animate is.  I take a bunch of jpg files, load into stack, make frames from layers, and I have an animated clip.  With this defination of animation you should be able to use any file type.

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LEGEND ,
May 11, 2010 May 11, 2010

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You both are correct. An animated gif file is kind of like a wrapper which the animation is embedded inside of it. It works similar to a quicktime or an avi file. Where as a jpg can be animated if you use a program that can read jpgs and play them in sequence fast enough to appear to be animated. Which javascript can do. Normally jpgs are not use do to the lack of an alpha channel and being a lossy format. But there is nothing stoping someone from using it.

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Guest
May 12, 2010 May 12, 2010

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Curt Y wrote:

Marian Driscoll wrote:

JPG does not animate.

Not sure what you definition of animate is.  I take a bunch of jpg files, load into stack, make frames from layers, and I have an animated clip.  With this defination of animation you should be able to use any file type.

My (and everyone else's) definition of 'animate' does not include a single JPG file, as described by the OP.

'an animated JPG' does not equal 'a bunch of JPG files'.

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Community Expert ,
Aug 09, 2011 Aug 09, 2011

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Curt Y wrote:

Not sure what you definition of animate is.  I take a bunch of jpg files, load into stack, make frames from layers, and I have an animated clip.  With this defination of animation you should be able to use any file type.

Yes you have an Animation of raster layers in Photoshop.  The appender is not writting about a layer stack in Photoshop they asked about a animated jpeg file.  To put your layer stack animation into a file(s) you have two options in Photoshop.   Menu File>"Save for Web and Devices..." and save an Animated GIF, or menu File>Export>"Render Video..."  which has file option of "Quicktime Export:" using a selected codec and settings saves a video file, or "image sequence:" with file type options with settings . For example a sequence of jpeg images. There is no way to output a single jpeg file that is an animation. A sequence of jpeg files can be use to make and animation.

JJMack

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New Here ,
Aug 09, 2011 Aug 09, 2011

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just saw one today, ..i was like "how d hell was this person able to achieve this, and on facebook where animated images are not allowed...the link is in my previous post, just before yours.

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Contributor ,
Aug 09, 2011 Aug 09, 2011

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emmachinedu wrote:

just saw one today, ..i was like "how d hell was this person able to achieve this, and on facebook where animated images are not allowed...the link is in my previous post, just before yours.

Are you guys suggesting that we can use animated GIFs on Facebook simply by renaming them to .jpg?

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LEGEND ,
Aug 09, 2011 Aug 09, 2011

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Please try it and report back.

-Noel

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Guest
Aug 09, 2011 Aug 09, 2011

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jyeager11 wrote:

...Are you guys suggesting that we can use animated GIFs on Facebook simply by renaming them to .jpg?

If I can suggest anything, it is to never use video-animated GIF files as they are a waste of resources and just look crappy. 

That waste of resources is likely why Facebook prohibits them.

I just filed a Facebook bug report so renaming a GIF to JPG may not work in the near future.  Sorry.

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LEGEND ,
Aug 09, 2011 Aug 09, 2011

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Killjoy.    I wonder if the Facebook technical people are quicker to make changes than the folks who maintain the Photoshop forums.

-Noel

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Contributor ,
Aug 09, 2011 Aug 09, 2011

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Wow, remind me never to invite Marian to a party.

Point is moot. It doesn't work, contrary to what the previous poster claimed. Just tried it.

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Community Expert ,
Aug 09, 2011 Aug 09, 2011

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Marian Driscoll wrote:

If I can suggest anything, it is to never use video-animated GIF files as they are a waste of resources and just look crappy. 

I think if you count the number of animated gif you might get the idea that many do not share you opinion.  Yes GIF files only support 256 mapped colors however often that many colors are more then required.  Many animated gif files are smaller in size then a typical jpeg image file used on the web. You generalized statement is incorrect you should correct it or remove it. 

JJMack

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Guest
Aug 09, 2011 Aug 09, 2011

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JJMack wrote:

...You generalized statement is incorrect you should correct it or remove it. 

Meh.

You English is frequently incorrect but I don't see you correcting it nor being asked by others to correct it. 

My comments were not generalized. They could be specific to every bloated animated GIF file you have posted in this forum. You alone have done well to discredit the art and effectiveness of animated GIFs. The animated GIF format was not designed to be abused in the way you have done.

JJMack wrote:


...I think if you count the number of animated gif you might get the idea that many do not share you opinion... 

  1. I could also try to count the number of racist things said on the internet but still not be convinced to think as a racist
  2. I'm not sharing an opinion that GIF is not a video format. It is a fact: Limited color pallete, no sound, unreasonable file size, no real control of playback speed, no streaming support, no instant start. You don't need to find disagreement with me. You are disagreeing with the people that created the GIF89a specification. They never suggested it was for video. Even the creators of GIF said that "[GIF] is not intended as a platform for animation."

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New Here ,
May 14, 2010 May 14, 2010

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So how can we make a jpg like this(http://i40.tinypic.com/ilkaps.jpg)

Can anybody, who know this answer, explain the solition clearly. Because my english is not good and difficulty in understanding your writings.

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Guest
May 14, 2010 May 14, 2010

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  1. Create an animated GIF file
  2. Save it
  3. Rename it from .GIF to .JPG

That is all that has been done here.

We're still looking at a GIF file. It has simply been mis-named as a JPG file.

...and the file is still too large for a web page  ...the creator should be shot, then drawn and quartered.  GIF was never meant for video.  Use a real video format.

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New Here ,
Aug 09, 2011 Aug 09, 2011

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Guest
Aug 09, 2011 Aug 09, 2011

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emmachinedu wrote:

what do you say about this...

I say the exact same thing I said before. That is a GIF file renamed with a JPG extension.

But don't believe me. Try asking your web browser what it is looking at.

jpganim.png

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New Here ,
Aug 09, 2011 Aug 09, 2011

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Great! Thanks Boss

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Community Beginner ,
Aug 09, 2011 Aug 09, 2011

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Wait, does it not work because something else is going on there or because FB repsonded SUPER-quickly to Marian's report?

Also, 100% have to disagree with you, Marian—animated GIFs are awesome, waste of resources or no, especially given the steady increase in average bandwidth for users wordwide. Kids are doing crazily creative things with them too. Just look at how awesome this is—http://kindness.ravenandcrowstudio.com/2011/06/journal-of-movement-of-world_24.html

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