Virtual slide viewer for CAVE2

Display high resolution DeepZoom images on CAVE2

Screenshots

Contact: Toan Nguyen (http://monash.edu/mivp)

Prerequisite

• openmpi

How to compile

Tested on MacOS 10.10 and OpenSuSE 12.3

cd vsviewer
mkdir build
cd build
cmake ..
make

How to run dzviewer

GO_DESKTOP_DZ [-n] [-p] [-m] [-a seconds] [-b buffersize] [-t numthreads] [-i dzi_file] [-l dzi_file_l dzi_file_r]
GO_CAVE2_DZ [-n] [-p] [-m] [-a seconds] [-b buffersize] [-t numthreads] [-i dzi_file] [-l dzi_file_l dzi_file_r]

• -n: use Omicron (wand)
• -p: if the image is shrunk until it fits within a single pixel (default vips depth option)
• -m: display minimap at the top-left corner
• -a seconds: go to next slides in every (a) seconds. To toggle slideview mode, press '.' (PERIOD) key on keyboard or X button on controller.
• default values: buffersize = 16, numthreads = 2
• check GO_DESKTOP_DZ_DEMO and GO_CAVE2_DZ_DEMO for examples

Usage

• keyboard: use LEFT, RIGHT, UP, DOWN to pan; PAGE_UP/PAGE_DOWN to zoom; 'n'/'b' to go to next/previous image; '.' (PERIOD) to toggle slideview mode
• PS3 move controller: use LEFT, RIGHT, UP, DOWN button to pan; A/B buttons to zoom; L1 button to go to next image; X to toggle slideview mode

Note: Convert to PyramidalTIFF with ImageMagick

• convert input.tiff -compress jpeg -quality 90 -define tiff:tile-geometry=256x256 ptif:output.tiff

Note: Convert to virtual slide to DeepZoom with Vips

• vips dzsave 3755.svs 3755 --tile-size 1024 --depth onetile
• vips dzsave 3755.svs 3755 (in this case, we need to turn on -p option because the image is shrunk until it fits within a single pixel

Log

• v1.1.1: add onepixel pyramid support
• v1.1.0: async image reading
• v1.0.0: DeepZoom input