Colibri serie 6
: User’s guide
© 2000-2012 C2R Technologie, Sarl. All rights reserved.
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122
Rev. A
J - JPEG Image Quality:
Sets the desired quality when the JPEG image format is selected.
Higher numbers result in higher quality. Smaller numbers result in greater amounts of lossy
compression, faster transmission times, and lower quality. (Default = 50)
•
nJ
Image is compressed as much as possible while preserving quality factor
of n (n = 0 - 100)
•
0J
worst quality
•
100J
best quality
K - Gamma Correction:
Gamma measures the brightness of midtone values produced by the
image. You can brighten or darken an image using gamma correction. A higher gamma
correction yields an overall brighter image. The lower the setting, the darker the image. A
setting of 100 results in no adjustment to the image. The optimal setting is 50K. (This selection
should only be used for text images.)
•
0K
Gamma correction off (default
•
60K
Apply gamma correction for brightening typical document image
•
nK
Apply gamma correction factor n (n = 1-255)
Correction set to 0K:
Correction set to 50K:
Correction set to 255K:
L, R, T, B, M - Image Cropping:
Ship a window of the image by specifying the left, right, top,
and bottom pixel coordinates. Device columns are numbered 0 through 640 or 752, depending
on the Image VGA setting (see Image VGA. Device rows are numbered 0 through 480.
•
nL
The left edge of the shipped image corresponds to column n of the image
in memory. Range: 000 - 640 when Image VGA is On, 000 -752 when Image VGA is
Off. (Default = 0)
•
nR
The right edge of the shipped image corresponds to column n - 1 of the
image in memory. Range: 000 - 640 when Image VGA is On, 000 - 752 when Image
VGA is Off. (Default = all columns)
•
nT
The top edge of the shipped image corresponds to row n of the image in
memory. Range: 000 - 480. (Default = 0)
•
nB
The bottom edge of the shipped image corresponds to row n - 1 of the
image in memory. Range: 000 - 480. (Default = all rows)
Uncropped Image:
Example of Image
Crop set to 300R:
Crop set to 300L:
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