Specifications

sensitive to changes of color than to changes of brightness. This is why the
CCD chip can be binned when capturing color images to 2×2 or 3×3 to
significantly increase its sensitivity. Luminance image is taken without
binning so the image resolution is not degraded.
Let us note that imaging through separate color filters is close to impossible
in some cases. For instance taking images of some fast evolving scenes, like
planet occultation by Moon, imaging of fast moving comet etc. There is no
time to take separate exposures through filters, because the scene changes
between individual exposures. Then it is not possible to combine red, green
and blue images into one image. In such cases using a single-shot color
camera is necessary.
The color images can be combined in the (L)RGB Add Tool in SIPS.
This tool is thoroughly described in the SIPS User's Guide.
Illustration 21: “(L)RGB Image Add“ tool in SIPS...
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