Venus Engine

Venus Engine

The Venus processing engine for digital cameras is an image processing engine developed by Panasonic, and almost all of their Lumix cameras use a version of it. Image processors operate in four steps: receive data from the CCD sensor, create the Y-color difference signal (image processing), perform JPEG compression, and save the image data. Panasonic claims that its VENUS II processing engine performs all of these simultaneously.

Venus

With the Venus engine, Panasonic claims "super fast" shutter speeds and less energy consumption.

Venus II

Panasonic claims many features in their Venus II engine, including chromatic aberration correction, enhanced resolution, and "super fast" shutter response. An example of a camera that uses the Venus II engine is the Panasonic Lumix DMC-FZ7.

Venus III

In addition to the enhanced resolution and "super fast" shutter response claimed with Venus II, the Venus III engine has enhanced noise reduction at high ISOs and lower power consumption. An example of a camera that uses the Venus III engine is the Panasonic Lumix DMC-FZ8.

There have been detailed complaints that the Venus III noise reduction is achieved by smudging the fine image details, and that "even in raw mode" there is a significant reduction of noise accompanied by loss of fine detail, giving results worse than could be obtained by reducing the noise in a totally raw file by processing with appropriate computer software. Discussion of this in September 2006, and a petition to Panasonic requesting a firmware update to correct these issues—although Panasonic does not issue firmware updates—are to be found [http://www.gopetition.co.uk/petitions/panasonic-fz50-lx2-firmware-problem.html here] .

Venus IV

Panasonic claims that the 2008 Venus Engine IV gives higher-quality images, and includes more accurate detection and better correction for its Optical Image Stabilizer and Intelligent ISO Control functions. It works at 9.1-megapixel resolution. Panasonic have published a detailed [http://panasonic.net/pavc/lumix/tz5_tz4_tz15_tz11/engine.html comparison of Venus III and IV] ; better noise response by preserving detail, quick response shutter release time lag of around 0.008 second minimum and high power-efficiency are claimed for Venus IV.

Reviews of cameras which compare the Venus IV engine to Venus III suggest that the newer engine is better, but the issue of noise reduction techniques losing detail remains, though improvedFact|date=July 2008.

ee also

* Lumix

References

*http://panasonic.co.jp/pavc/global/lumix/popup/behind_the_scenes/index.html
*http://panasonic.co.jp/pavc/global/lumix/tz1/venusengine.html
*http://www.panasonic.ca/english/audiovideo/camerascamcorders/digitalstill/pdf/Venus_I_II_III.pdf


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