cameracompress

Image compression. More...

Image compression.

The cameracompress driver accepts data from another camera device, compresses it, and makes the compressed data available on a new interface.

Compile-time dependencies
  • libjpeg
Provides
  • Compressed image data is provided via a camera device.
Requires
  • Image data to be compressed is read from a camera device.
Configuration requests
  • none
Configuration file options
  • check_timestamps (int)
    • Default: 0
    • If non-zero, timestamps are checked so only new images are compressed and published.
  • save (int)
    • Default: 0
    • If non-zero, uncompressed images are saved to disk (with a .jpeg extension)
  • image_quality (float)
    • Default: 0.8
    • Image quality for JPEG compression
Example
driver
(
  name "cameracompress"
  provides ["camera:1"]
  requires ["camera:0"]  # Compress data from device camera:0
)
Author
Nate Koenig, Andrew Howard

Last updated 12 September 2005 21:38:45