Thumbnails by time

We start working on the contents of the folder “kuvia” — Finnish for images — and just one of several folders of images. Of the approximately 17000 images, 12000 have EXIF data (straight from a digital camera). I write a script (erkki_walk.py) to dump some of the metadata as tab-delimted text so that it can be viewed as a spreadsheet. In addition, thumbnail data is extracted to a separate (numerically indexed) file.

A second script (erkki_draw.py) reads the spreadsheet and draws a new single image (10000 x 1000 pixels) where the thumbnails are each drawn individually with horizontal position related to their timestamp of creation, and vertical position random:

Horizontal placement relates to camera focal length:

Horizontal placement relates to camera flash value:

Horizontal placement relates to exposure:

Horizontal placement relates to time of day (hour + minute from 0 to 24):

Horizontal placement relates to time of year (from january to december)

by red…

green…

blue…

hue…

saturation…

value…

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