[GRASS-dev] images2gif.py in grass

[Anna Kratochvílová]

On Tue, Oct 16, 2012 at 4:23 PM, Margherita Di Leo
<dileomargherita at gmail.com> wrote:
> Hi Sören,
>
> On Tue, Oct 16, 2012 at 4:15 PM, Sören Gebbert
> <soerengebbert at googlemail.com> wrote:
>>
>> Hi,
>> i hope i do not start a flame war. :)
>>
>> 2012/10/16 Martin Landa <landa.martin at gmail.com>:
>> > Hi,
>> >
>> > 2012/10/16 Vaclav Petras <wenzeslaus at gmail.com>:
>> >> gif is a nice simple option how to present 'moving images'. It is
>> >> widely supported and we don't need any external dependency in case of
>> >> using images2gif.py. I would like to see this option even if we were
>> >> able to export a real video.
>> >
>> > agreed, Martin
>>
>> IMHO animated GIF's have so many limitations i wouldn't support it for
>> GIS related map animations at all. The results will be to horrible.
>>
>> Some arguments against it:
>> * Very small color range support: 8 bit per pixel == 256 colors for a
>> picture
>> * True color is only supported when creating 256 bit tiles in a single
>> picture,
>>   each tile can use different parts of a 24 bit RGB color space
>> * Only suitable for small animations and low-resolution film clips
>> * No control over animation frame rate/animation flow/pausing while
>> playing GIF's
>>
>>
> GIF's have also pro's, for example I use them in presentations, they usually
> are more handy to show than videos, you can just add them as images. Of
> course the option to export regular video as well, if technically possible,
> would be a plus.

The gif output would be something you get quickly and easily and it's
ideal for presentations (as Madi said). I would also export the
sequence of images to let the 'advanced' users make anything what they
want.

Anna


>
> Ciao madi
>
>
> --
> Margherita DI LEO
> Postdoctoral Researcher
> European Commission - DG JRC
> Forest Resources and Climate
> I-21020 Ispra (VA) - Italy - TP 261
>
> Tel. +39 0332 78 3600
> margherita.di-leo at jrc.ec.europa.eu
>
>
>
>
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