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<h2><b>imdi/cctiff</b></h2>
<h3>Summary</h3>
Color convert a TIFF file using a sequence of compatible ICC device
profiles, abstract profiles and device link profiles.<br>
<h3>Usage<br>
</h3>
<small><span style="font-family: monospace;"></span><i
style="font-family: monospace;"></i>
<span style="font-family: monospace;"></span><span
style="font-family: monospace;">cctiff [-options] { [-i intent] <span
style="font-style: italic;">profile.icm</span> ...} <span
style="font-style: italic;">infile.tif outfile.tif</span></span></small><small><span
style="font-family: monospace;"></span><i
style="font-family: monospace;"></i><br style="font-family: monospace;">
<span style="font-family: monospace;"></span><span
style="font-family: monospace;"></span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#v">-v</a><span
style="font-family: monospace;">
Verbose</span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#c">-c</a><span
style="font-family: monospace;">
Combine
linearisation curves into one transform</span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#p">-p</a><span
style="font-family: monospace;">
Use slow
precise floating point conversion, rather than fast integer routines.</span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#k">-k</a><span
style="font-family: monospace;">
Check
fast result against precise, and report differences.<br>
</span></small><small><span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#r">-r n<span
style="font-style: italic;"></span></a><span
style="font-family: monospace;">
Override the
default CLUT resolution<br>
</span></small><small><span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#o">-o <span
style="font-style: italic;">intent</span></a><span
style="font-family: monospace;">
Choose last profiles
intent<br>
</span></small><small><span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#e">-e n<span
style="font-style: italic;"></span></a><span
style="font-family: monospace;">
Choose TIFF
output encoding from 1..n<br>
</span></small><small><span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#a">-a</a><span
style="font-family: monospace;">
Read and Write planes > 4 as alpha
planes<br>
</span></small><small><span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#l">-l</a><span
style="font-family: monospace;">
This flag is ignored for backwards
compatibility<br>
<br>
Then for each profile in sequence:<br style="font-family: monospace;">
</span></small><small><span style="font-family: monospace;"></span></small><small><span
style="font-family: monospace;"></span><span
style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#i">-i <span
style="font-style: italic;">intent</span></a><span
style="font-family: monospace;">
Profile intent</span><br
style="font-family: monospace;">
<span style="font-family: monospace;">
p = perceptual, r = relative colorimetric,</span><br
style="font-family: monospace;">
<span style="font-family: monospace;">
s =
saturation, a = absolute colorimetric</span><span
style="font-family: monospace;"></span></small><small><span
style="font-family: monospace;"></span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#p1"><i>profile.icm</i></a><span
style="font-family: monospace;"> A
Device, Link or Abstract profile.</span><span
style="font-family: monospace;"></span><span
style="font-family: monospace;"></span><span
style="font-family: monospace;"></span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#p2"><i>infile.tif</i></a><span
style="font-family: monospace;">
A </span><a style="font-family: monospace;"
href="File_Formats.html#TIFF">TIFF</a><span
style="font-family: monospace;">
Raster file that will be the input raster to be transformed.</span><br
style="font-family: monospace;">
<span style="font-family: monospace;"> </span><a
style="font-family: monospace;" href="#p3"><i>outfile.tif</i></a><span
style="font-family: monospace;">
A </span><a style="font-family: monospace;"
href="File_Formats.html#TIFF">TIFF</a><span
style="font-family: monospace;">
Raster file created from the input raster, using the given color
transform.</span></small><b><br>
</b><b><br>
Examples</b><br>
<br>
cctiff -ir sRGB.icm -ir CMYKprinter.icm infile.tif outfile.tif<br>
<br>
cctiff devicelink.icm infile.tif outfile.tif<br>
<br>
cctiff -ir sRGB.icm abstract.icm -ir CMYK.icm devlink.icm infile.tif
outfile.tif<br>
<br>
cctiff -ir sRGB.icm rgbfile.tif labfile.tif
<h3>Comments<br>
</h3>
<a name="v"></a> The <span style="font-weight: bold;">-v</span> flag
reports extra information about the ICC
profile.<br>
<br>
<a name="c"></a><a name="p"></a><a name="k"></a><a name="r"></a> The
<span style="font-weight: bold;">-c</span>, <span
style="font-weight: bold;">-p</span>, <span style="font-weight: bold;">-k</span>
and <span style="font-weight: bold;">-r</span> options are intended to
aid debugging.<br>
<br>
<a name="o"></a>The <span style="font-weight: bold;">-o</span>
parameter is for backwards compatibility, and
sets the intent of the last profile in the chain.<br>
<br>
<a name="e"></a>Some colorspaces can be encoded in more than one way.
If there is a choice, the choice should be specified the <span
style="font-weight: bold;">-o</span> parameter.
If the parameter is needed, then cctiff will issue an error that
describes
the possible choices (ie. TIFF LAB encoding).<br>
<br>
<a name="a"></a>Normally colorspaces that have more than 4 channels
will be read and written as multichannel TIFF files. These are not
handled well by all applications, so the <span
style="font-weight: bold;">-a</span> option causes extra channels
above 4 to be stored as alpha planes, providing more flexibility in
using such files.<br>
<br>
<a name="l"></a>The <span style="font-weight: bold;">-l</span> option
is just for backwards compatibility.<br>
<br>
Following these global options, you should specify the chain of
profiles you want to apply. Each link of the chain consists of the
(optional) intent to be used for device profiles, and the filename of
the profile. The first profiles input colorspace must be compatible
with the input TIFF file, and each profiles output space must be
compatible with the next profiles input space. An error will result if
this is not the case.<br>
<br>
<a name="p1"></a>The <span style="font-weight: bold;">-i</span>
parameters
selects the intent for the following device profile. Normally
the same intent should be used for all device profiles.<br>
<br>
<a name="p2"></a>The second last argument should be the name of the
TIFF file that is to be processed.<br>
<br>
<a name="p3"></a>The last argument should be the name of the TIFF file
to hold the results.<br>
<br>
<span style="font-weight: bold;">cctiff</span> uses very fast integer
conversion routines to process the raster. Both 8 and 16 bit per
component files can be handled, and up to 8 color channels (The limit
can be lifted to 15 without any trouble).<br>
<br>
<br>
<br>
<br>
<br>
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