The new Lytro iPhone App, released just a few hours ago, allows users to export animated GIFs from their Living Pictures.
To celebrate the occasion, Lytro’s Director of Photography Eric Cheng just posted a total of 276 animated GIFs that demonstrate the Perspective Shift effect of Living Pictures.
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Light Field Toolbox, Donald Dansereau’s set of tools for light field image processing in Matlab, is now available in version 0.2. New features include camera calibration, image rectification, and convenience functions for managing multiple light fields and multiple cameras.
Light Field Toolbox v0.2 (1.9 MB, 79 hits)
Official changelog:
- Calibration of lenselet cameras from checkerboard images
- LFUtilDecodeLytroFolder: decoding, colour correction and rectification
- Management of multiple cameras, white images and calibrations
- Organized code into a folder structure, see LFMatlabPathSetup
- Organized light fields / cameras into a folder structure
- Code and usability improvements throughoutBecause some functions have been replaced and parameters have been renamed, code written with v0.1 may require modification to work with v0.2.
Along with the update, there’s a new light field sample pack which introduces a folder structure optimized for use with multiple cameras, and a small sample calibration dataset. Continue reading
The iPhone World has recently gained a cool new category of apps that bring refocus capabilities to your smartphone: tap2focus and FocusTwist, both released within a small timeframe, use the iPhone’s standard camera to take several pictures at different focus levels, and combine the individual frames into an interactive touch-to-refocus picture à la Lytro.
Now, Windows Phone 8 is the second platform to gain software refocus picture taking: The app, simply named Refocus (0.99 $) uses the same “image series” technique to record the necessary data, but unlike FocusTwist it’s not limited to square pictures Continue reading
Processing Lytro LightField Pictures is generally done within the free, official Lytro Desktop Software. If you want more control over your LightField results, though, there are a few tools available to do just that. (Note that the Desktop Software is still needed to transfer the pictures from the camera.)
The newest addition to the list of openly available LightField tools is LightField Toolbox v0.1 for Matlab, by Donald G. Dansereau.
It its initial release, it is limited to basic features such as loading, decoding, colour correction and visualization (including a basic perspective shift effect) of Lytro light field images. But there’s more to come!
This version of the toolbox and documentation are focused on Lytro imagery. Adapting this to other cameras should be straightforward. Future releases will support additional input formats, camera calibration, image rectification, and depth and volumetric filtering for improved rendering quality.
Last week, we presented the tap2focus iPhone App that offers Lytro-like refocus capabilities by way of manually recording several photos and combining them into an interactive picture.
Shortly after (but unrelated), Arqball announced the launch of their newest app FocusTwist which also promises this LightField-like feature.
FocusTwist ($1.99) There are a few differences between the two apps: