Pco edge User Manual

Appendix
pco.edge User Manual V1.03 © PCO AG, Germany 55
A4 Image File Formats
There are different file formats available for saving camera images with
Camware.
b16
The “b16” 16 bit format is similar to the bmp format. However, 16 bit pixel
values are used instead of 8 bit pixel values.
The file format consists either of a "Basic Header" (6 Long-parameter) or of
an "Extended Header" (32 Long-parameter), the latter of which is optionally
for additional information. There might follow a variable comment field
(ASCII code). Finally, there is the actual data set that is saved linearly (as in
the case of BMP files).
With the exception of the first value, all parameters are "Long Integers" (4
Byte). The first 6 parameters must always exist. The rest of the parameters,
as well as the comment field, are optional.
Parameter
Function
1
“PCO-“
the first 4 byte are the characters “PCO-“
2
file size
file size in byte
3
header length
header size + comment filed in byte
4
image width
image width in pixel
5
image height
image height in pixel
6
extended header
-1 (true), extended header follows
7
color mode
0 = black/with camera, 1 = color camera
8
b/w min
black/white LUT-setting, minimum value
9
b/w max
black/white LUT-setting, maximum value
10
b/w linlog
black/white LUT-setting,
0 = linear, 1 = logarithmic
11
red min
red LUT-setting, minimum value
12
red max
red LUT-setting, maximum value
13
green min
green LUT-setting, minimum value
14
green max
green LUT-setting, maximum value
15
blue min
blue LUT-setting, minimum value
16
blue max
blue LUT-setting, maximum value
17
color linlog
color LUT-setting, 0 = linear, 1 = logarithmic
18

266
internal use
Comment file in ASCII characters with variable length of 0…XX.
The length of the comment filed must be documented in the “header length” field.
16 bit pixel data
line 1, pixel 1
value of the first pixel
line 1, pixel 2
value of the second pixel
…
…
We recommend that all images should be saved first in the b16 or TIFF
format. The advantage is to have the b16 or tiff images available all the
time. You will always have the maximum 16 bit information. Please note that
not all image analysis programs can accommodate 16 bit data. The 8 bit
format saves only the information displayed on the monitor screen. The 16
bit information will be lost and cannot be displayed later.
pcoraw
This 16 bit PCO file format is based on the new BigTIFF format, thus
allowing for file size > 4GB. A new PCO proprietary compression scheme is
added in case it is necessary.
TIFF
Tag Image File Format, version 6.0 and lower. There is a 16bit monochrome
and color image format.

Pco edge Specifications

General

Brand	Pco
Model	edge
Category	Digital Camera
Language	English