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1994-04-14
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There has been one new file format, Kodak PhotoCD, and one new command,
convolve, added to Image Alchemy since the manual was printed. These
are described below:
Convolve -yf
Purpose Applies any one of a number of convolutions to
an image (such as sharpen and blur).
Syntax -yf filename
Comments The various convolutions that ship with Image
Alchemy are found in the samples\ directory.
The only two which ship with this version are
sharpen and blur. Other convolutions will be
downloadable from our BBS (+1 510 252 0929) as
they become available (the filename to look for
is filters.zip).
Examples Convert the TIFF file image.tif to a TIFF file,
called new.tif, sharpening it in the process:
alchemy image.tif new.tif -t -yf samples\sharpen
Convert the TIFF file image.tif to an HP-RTL
file for the Novajet, scaling it to 2500x2550
and bluring it:
alchemy image.tif --r10 -yf samples\blur
-X2500 -Y2550
PhotoCD
PhotoCD files are multi-resolution images
produced by Kodak.
Extensions .pcd
Creator Eastman Kodak Company
Used by Eastman Kodak Company
Variations Reads single channel and 3 channel images.
Limitations The full path to the PhotoCD file must be
specified as the input file (e.g.,
L:\photo_cd\images\img0001.pcd).
Alchemy cannot write PhotoCD files.
Comments The Alchemy overlay file, alchpcd.exe, is used
by Image Alchemy when reading PhotoCD images.
This file must either be in the same directory
as alchemy.exe, or any directory in your path.
Since PhotoCD files are multi-resolution images
you may specify which resolution image you want
Alchemy to read. The -Z option, followed by a
number, is used to specify the desired
resolution. Available resolutions are:
2: 192x 128
3: 384x 256
4: 768x 512
5:1536x1024
6:3072x2084
The default is 3 (384x256).
Alchemy automatically rotates the picture to
the "correct" orientation (as was determined
by the technician who recorded your PhotoCD),
however, you can override this by using a
second parameter after the -Z option. The
second parameter can take on the following
values:
0:don't rotate the image
1:flip image vertically
2:flip image horizontally
3:rotate image 180 deg (the same as both
vertical and horizontal flip)
4:rotate image 90 deg CCW
5:rotate image 90 deg CCW and flip
vertically
6:rotate image 90 deg CCW and
flip horizontally
7:rotate image 90 deg CW (the same as
rotating it 90 deg CCW and flipping both
horizontally and vertically)
The default is 0 (don't rotate the image).
If you specify a -b as part of the command line
Alchemy will read a Grayscale version of the
image.
Example
To read the 768x512 size image and rotate it 90
degrees counter-clockwise:
alchemy L:\photo_cd\images\img0001.pcd -g
-Z 3 4