JSANCHEZ, LLC
Paper drawings in, digital drawings
out…
10420 Arthur Place, Suite 100
St. Louis, Missouri 63131
Phone: (314)-567-7779
Fax:
(314)-567-3412
Email: sanchez@jsanchez.com
24-bit full-color
image, edited by graphics technician
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Level 7
True Color
Raster images
are captured in 24-bit format with 16 million colors.
These scans capture the
full RGB spectrum of the original artwork, since 24-bit files store 8-bits of
color for the red, green and blue channels. The advantage of this option
is a fully detailed color rendition, but at the expense of relatively large
file sizes. This option works best for real-life color photographs, color
aerial photographs, and color-sensitive artwork. Standard post-processing
options include Color Correction (accurate color) and Resolution
Resampling (multiple copies of the same scan at reduced resolutions).
Re-sampling is quite useful when a single image may be needed for multiple
uses, each requiring different levels of detail and file size.
Optionally, color feature extraction (separation into
multiple B&W files), biasing and heads-up digitizing are available as
additional post-processing options. Also, standard Level 4 or Level 5 files may
be obtained from full color images, particularly from aerial and satellite
photography.
To
reduce the large file sizes, albeit at the expense of some image quality,
24-bit scans can be post-processed into 8-bit color images. These are
"indexed color raster files", saved in 256-color format.
Post-processing a full color scan and resampling it into the 256 most commonly
found colors within the RGB spectrum develop palette indexes. The
advantage of this option is substantially smaller file sizes (about one third),
with only marginal loss in color rendition. This is due to the fact that
many original documents do not contain subtle shading that would suffer by
reducing the total number of colors present in the raster. This option
works best for color renderings, maps and presentation graphics with large
areas of solid colors, such as thematic maps and color-coded charts.
Standard post-processing options include color correction (accurate color) and
resolution re-sampling (multiple copies of the same scan at reduced
resolutions). Optionally, "color feature extraction",
"biasing" and "heads-up digitizing" are also available for
8-bit color data.
The best way to capture your full color images
The complete scanning
and conversion solution
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