[gdal-dev] Google SoC idea...

[ivan.lucena at pmldnet.com]

Hi Yann,

I guess I am looking to some very boring thumbnails when I look to my datasets in 100x100. 

Other interesting features on Windows Explorer is the "FilmStrip" where you have a bigger picture on top and the others as thumbnails aligned like picture frames.

In both modes, thumbnail or filmstrip, users can right-click and open the file properties/summary where I believe you can inject some metadata.

I believe that by the COM Shell API extension you can have all those features at the same time. No?

Best regards,

Ivan

>  -------Original Message-------
>  From: Yann Chemin <yann.chemin at gmail.com>
>  Subject: Re: [gdal-dev] Google SoC idea...
>  Sent: Mar 14 '08 04:34
>  
>  Yes Ivan,
>  
>  was not sure about who could be doing it even, it was just an idea about
>  improving KDE thumbnail for GIS, since gdal_translate has it already it
>  should be just few code away though.
>  
>  About the RS image display, gdal_translate outputs nice PNGs, we can tell
>  easily if data is landsat (number of bands) and make a standard false
>  colour composite (FCC) by selecting bands 4,3,2 for RGB.
>  For AVHRR: 4,2,1 for RGB. Well, maybe use the metadata to tell us what
>  satellite and what are the band representing, and then make FCC.
>  
>  Could also have world countries, major rivers, (degree grid?) etc vectors
>  overlaid on the fly while creating the thumbnail...
>  
>  Just sending out ideas.....
>  Yann
>  
>  
>  On 14/03/2008, LUCENA, IVAN <[LINK: mailto:ivan.lucena at pmldnet.com]
>  ivan.lucena at pmldnet.com> wrote: Yann,
>  
>  I think that is OK to do that. I don't want to discourage you but
>  just
>  keep in mind that sometime, or very often, GIS/RS image are not very
>  expressive by itself. That is even worse in low resolution thumbnail.
>  Imagine that you want to show a collection of Landsat original
>  multi-band files. Which band should you present in KDE or Explorer?
>  
>  Try that: Run "foreach" or "for %f in" to call gdal_translate to copy
>  large group of real-case-GIS/RS-files to PNG outputs files in another
>  directory. Then open that directory on a file browser and take a look at
>  those thumbnails. See how does it looks like.
>  
>  Best regards,
>  
>  Ivan
>  
>  
>  Yann Chemin wrote:
>  > Hi list,
>  >
>  > It may be a small thing but it might help people...
>  >
>  > many OSs now have image browsers embedded. in MS it is in Explorer I
>  > believe, in KDE there is a thumbnail creator inside konqueror/dolphin.
>  >
>  > could it be possible to make konqueror/dolphin for example,
>  automatically
>  > create a thumbnail of RS images and GIS covers through GDAL?
>  > We could then have GIS/RS data previews the same way we have for
>  standard
>  > camera pictures...
>  >
>  > thanks,
>  > Yann
>  >
>  >
>  >
>  
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