Specifications

and no raw monochrome image is shown) or to perform this processing

anytime later.

Debayer processing can be performed from “Image Transform” tool (to

open this tool click button in the tool-bar or choose “Image Transform”

from the “Tools” menu). Check box “Debayer new images” allows

immediate Debayer processing of images downloaded from the camera. The

button performs Debayer processing of currently selected image.

The Bayer mask displayed on the schematic image above begins with blue

pixel. But there are no rules specifying the color of the first pixel – in

principle there can be also green pixel from the blue-green line on the

upper-left corner as well as green pixel from the green-red line or red pixel.

There is no way how to determine the Bayer mask organization from the

image. This is why the “Image Transform” tool provides two check-boxes

called “Bayer X odd” and “Bayer Y odd”. Combination of these check-

boxes allows specification of Bayer mask organization on the particular

CCD.

State of “Bayer X odd” and “Bayer Y odd” check-boxes are always updated

when you connect camera with color CCD according to the information

provided by the driver. Is is necessary to update them manually only if the

raw color image is loaded from the disk file and needs to be processed

without connected camera.

Wrong definition of these two flags results in wrong color calculation.

Proper settings can be easily determined by the try-and-error method. But

Debayer processing discards the original raw image so it is always

necessary to backup the original raw image.

Also please note the settings of the “Bayer X odd” and “Bayer Y odd”

check boxes must be altered when any geometric transformations are

applied to the raw image (e.g. mirroring, rotation, etc.). Some

transformations (e.g. soft binning or resampling) cannot be performed on

raw image at all. It is always better to Debayer images first and process

them later.

Also note that stacking of raw color images results in loss of color

information. Stacking algorithms align images regardless if the particular

pixel is red, green or blue. SIPS allows also sub-pixel stacking, which can