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July 14th NLC image/animation

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17 years 9 months ago #30684 by Seanie_Morris
Replied by Seanie_Morris on topic Re: July 14th NLC image/animation
*Agrees with above posters* Wow Al, that is a very nice piece of work! You have really captured the moment in that display Hats off to you!

As to your jpegs versus gifs... well, I don't think you have much of a choice. You could scour the net to see if such a jpeg 'compiler' exists, but as you can see from here, you have lost some picture quality because of jpeg compression for internet-firendly file size. If you go down the route of a gif animation, then you will have a smaller file but better preserved quality.

Great stuff!

Seanie.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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17 years 9 months ago #30699 by albertw
Replied by albertw on topic Re: July 14th NLC image/animation

As to your jpegs versus gifs... well, I don't think you have much of a choice. You could scour the net to see if such a jpeg 'compiler' exists, but as you can see from here, you have lost some picture quality because of jpeg compression for internet-firendly file size. If you go down the route of a gif animation, then you will have a smaller file but better preserved quality.


It is a gif :-)

The problem using gifs though is that you can only have 256 colours, so its not compression that makes the image look bad, its the dithering to only use 256 colours.

Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/

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17 years 9 months ago #30702 by voyager
Replied by voyager on topic Re: July 14th NLC image/animation

As to your jpegs versus gifs... well, I don't think you have much of a choice. You could scour the net to see if such a jpeg 'compiler' exists, but as you can see from here, you have lost some picture quality because of jpeg compression for internet-firendly file size. If you go down the route of a gif animation, then you will have a smaller file but better preserved quality.


It is a gif :-)

The problem using gifs though is that you can only have 256 colours, so its not compression that makes the image look bad, its the dithering to only use 256 colours.


Perhaps a small MPEG movie would have been a smaller and better option?

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17 years 9 months ago #30703 by albertw
Replied by albertw on topic Re: July 14th NLC image/animation

Perhaps a small MPEG movie would have been a smaller and better option?


So back to my question, "Anyone know a better (& easy!) way to make a movie out of jpg's other than going to animated gif?" :-)

Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/

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17 years 9 months ago #30704 by voyager
Replied by voyager on topic Re: July 14th NLC image/animation

Perhaps a small MPEG movie would have been a smaller and better option?


So back to my question, "Anyone know a better (& easy!) way to make a movie out of jpg's other than going to animated gif?" :-)


Yup, but you won't like it. Load the images into iMovie, save, Done. Mac only solution though.

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17 years 9 months ago #30705 by albertw
Replied by albertw on topic Re: July 14th NLC image/animation

Yup, but you won't like it. Load the images into iMovie, save, Done. Mac only solution though.


:-)

After reading up a bit I think imagemagick can do it easily enough on unix.

Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/

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