PaulSeward.com

Photos of Phones and Phonographs (occasionally)

Bike

DSC_1429-RGB_bike_medium

I’m trying out a new black and white post processing technique.  It seems to have worked quite well and given lots of contrast without sacrificing detail. I think I like it!

In phone news:

  • I’ve aquired some batteries from an old UPS to run the uniselector based exchange I’m designing and building.
  • I’m soaking a couple of E1900 series phone bodies to remove the circuit diagrams which are pasted inside them, so that I can scan them before giving the bodies an intense clean and polish.
  • I’m also working on some microcontroler code which plays back audio samples for my “siteswaphone” project (A project which uses a 746 phone as an IO device) – This isn’t as easy as I’d hoped, as the sample playback code I’ve got needs rewriting to work with 4 bit 6KHz samples, which is all I can fit in the 16K of storage I’ve got available!

That last one is the one which is causing the most head scratching, but the first one is the most interesting!

3 Responses to “Bike”

  1. Jonathan says:

    Hey, I really like that photo. Perhaps you can explain the technique to me in the team room tomorrow :)

    The quality of the photo reminds me a lot of the black & white film photos I’m scanning and editing at the moment. There will probably be some on my blog within the hour.

  2. Paul says:

    It’s a bit complex for the tearoom, but it roughly went like this:

    • Open image in gimp
    • Colours->Components->decompose->RGB|Decompose to layers
    • Reorder layers so that top down they go Green, Red, Blue
    • Set red layer blend mode to Difference
    • Set green layer blend mode to Difference
    • Copy visible, paste as new layer
    • Filters->Enhance->Unsharp Mask
    • Colours->Curves (Gentle S curve)

    Then Crop/Resize/resharpen/add a vignette as needed.

  3. Paul says:

    Blimey, I really need to sort out the CSS for these comments, that’s horrible!

wordpress theme based on zenphoto