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Users Manual – eco1050, eco2050, eco2150, eco4050, eco674, eco694, eco814
p. 55
Comments on camera temperature
There is no need to worry because the camera has been tested at higher
temperatures than specified.
12.7
Comments on Color Version
If you have purchased a color version (e.g. ecoZZZCTLGEC) of this
camera, please note the following:
In all electrical terms the camera is identical to the black and white
versions.The camera uses a CCD which has a color mosaic filter. This
filter is called "Bayer"-filter named after the person who invented it. It
has a pattern on the lines which alternates as follows, e.g.:
First line:
RGRGRG.... and so on (R = Red, B = Blue, G = Green)
Second line: GBGBGB.... and so on
Please note that about half of the pixel are green, a quarter red and a
quarter blue. This is due to the maximum sensitivity of the human eye at
about 550 nm (green).
Note that the green pixel in the “red” line has different sensitivity than
the green pixel in the “blue” line.
Because this camera is a single chip camera it is necessary to use an
algorithm which interpolates those colors which are "not known" by the
specific pixel. E.g. the red pixel does not know its green and blue
components.
This means that the performance of the image depends on the software
used.
Please be aware that it is not possible to incorporate the algorithm into
the camera so easily. Unlike NTSC/PAL cameras there is no hardware
chip available which can do that for such large images. The user has the
advantage to alter the colors depending on his needs. Thus the color
image must be processed in the PC.
We offer several algorithms in the SVCapture program which influence
display rate and image quality. However a color source code is available
on request for those who want to write an application.
We offer a complete set for a system setup containing camera, cable,
power supply, and software to help solving your applications.
Note that you can disable the color in the SVCapture program. Color
processing is not done inside the camera but in the PC. So some CPU
power is consumed.
If you have questions do not hesitate to contact us or your local dealer.