... on Mac OS X The problemMy new Sony Bravia TV can show photo slideshows using photos on a USB device. It supports the DCF 2.0 standard, which only includes JPEG files with Chroma Subsampling settings 4:2:2 and 4:2:0. I use Adobe Lightroom 2 on Mac OS X for RAW conversion and managing my photo collection. Lightroom exports high quality JPEG files with Chroma Subsampling settings 4:4:4. The solutionConvert the JPEG files that lightroom produces to a format that the Sony Bravia supports with mogrify (part of the ImageMagick toolkit). The procedureFirst we need to install ImageMagick. There are several ways to do that (visit the website for details). I used Homebrew. Installing ImageMagick through Homebrew takes 3 steps:
Then I wrote a script (LR2Sony.sh) with the following contents: #!/bin/bash/usr/local/bin/mogrify -sampling-factor 2x1 $*chmod +x LR2Sony.sh(This script is also attached to this page) The trick is to use the -sampling-factor 2x1 argument of mogrify. You could try to use the LR/Mogrify plugin and let it pass that option to mogrify (I didn't test this).We can now convert photos from lightroom by executing: ./LR2Sony.sh *.jpgWe can even do better. If we put the script in $HOME/Library/Application Support/Adobe/Lightroom/Export Actions, we can chose it as an export action when exporting photos from lightroom. Lightroom will then call the script automatically after exporting.Enjoy watching your photos on your Sony Bravia TV! |