Lunchtime Semaphore

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Archive for the 'photo' Category

Manual geocoding

May 28th, 2013 by Melaneum

I like to geotag my photos, but I don’t always have a GPS. A while ago, I got an eyefi card that can record some geolocation information. However, this is based on the wifi hotspots on the neighborhood and that does not work very well in the wild.

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Category: Geolocation, photo | No Comments »

Picasa on Debian testing

December 29th, 2012 by Melaneum

After reinstalling from scratch on the SSD, I had some issues to get Picasa 3.9 up again:

Library mscms.dll (which is needed by 
LC:\\Program Files\\Picasa3\\Picasa3.exe) not found

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Category: Linux, photo | 1 Comment »

Renaming photos

April 19th, 2008 by Melaneum

Situation

A family gathering with ten different photographers shotting every moment. You end up with thousands of photos that need to be organized at least in sequence over the time (to make a slide-show, for example).

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Category: photo, Tagging | 1 Comment »

High Dynamic Range (HDR)

April 15th, 2008 by Melaneum

Most common images are coded on 8 bits (24 if you have three channels for the colors) which gives 256 different values. The problem is that the human eye sensitivity spans a great range of luminosity and can adapt fast to different contrast. As a results, photos taken on a places with important contrast will look over or under exposed.

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Category: HDR, photo | No Comments »

Mapping photos 2 (libkml)

April 3rd, 2008 by Melaneum

Few days ago Google release an open source library targeted at KML files: libkml. There is also bindings for python available.

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Category: Geolocation, photo, Python, Tagging | No Comments »

Mapping photos

March 25th, 2008 by Melaneum

If you’ve followed earlier intructions on tagging your photos, you now have a set of photos with the gps location information on the exif tag. As we have seen on a previous article on blog-mapping, it is pretty easy to insert Google maps on a website.

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Category: Geolocation, photo, Python, Tagging | No Comments »

Geotagging

March 24th, 2008 by Melaneum

Un appareil photo d’un côté, un tracker GPS de l’autre… il est tentant de combiner les info. Ce n’est pas pratique (ou même pas possible) dans la plupart des cas de connecter directement les deux appareils.

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Category: Geolocation, photo, Tagging | 2 Comments »