EDAX EDS Manual

It is assumed that you have a stereo pair on disk that it has been recalled to
PhotoImpact. The two images should have the same pixel dimensions (e.g.
512x400, or 1024x800) and they should differ only by their tilt. Also, the tilt axis
should be vertical on the monitor with the SE detector on the left (on many SEMs this
will require a -90 degree scan rotate). If the conditions for the two images are
different than just described, you may need to depart from the procedure described
below (i.e. the color designation may need to be changed, and/or the merged image
may need to be rotated). In PhotoImpact the 3D image is created using a CMYK
(cyan, magenta, yellow, black) merge function. One image will be assigned to cyan,
the other to both magenta and yellow (this makes red) and a white image with no
video information will need to be created and assigned to the black channel.
It will be helpful when saving the two original images to denote the tilt of each image,
or to append a letter for the color of each image (e.g. an “r” for the red image and a
“c” for the cyan image).
Procedure
The two images should be converted to grayscale images; [Format], [Data Type] and
[Grayscale]. You may need to keep a note as to which image is the lower tilt image
because the conversion process will create a new image called “Untitled X” where “X”
is a sequence number. When both images have been converted to grayscale, then it
will be necessary to create a white image with the same definition (512x400 or
1024x800, for instance) as the two images that differ in tilt. To create a new image
that is completely white:
-[File]
-[New]
A dialog box will appear, and you should ensure that the data type is grayscale (8bit),
the image size matches the resolution of the two images (512x400 or 1024x800,
for instance), then [OK]. If the image is a white image, you are ready to proceed. If it
is not white that is most likely because the background color has been selected to be
something different. In that case, click on the background box under the grayscale
palette at the right side of the screen; then enter 255 for each of red, green and blue.
When the two images have been converted to grayscale and the white image is
available:
-[Format]
-[Data Type]
-[Combine from CMYK]
A dialog box appears. In PhotoImpact (different from several other image
enhancement programs) you should assign the lower tilt image to cyan, the higher tilt
image to both magenta and yellow, and the white image to the black channel, then
[OK].
Check the resultant image with your glasses (red for the left eye, cyan for the right
eye). If the image does not work, see note at the end of the second paragraph of
EDAX Phoenix Training Course - PhotoImpact - page 3