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1802.html
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1802.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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#1802 (Contrast adjusting not like IJ1)
– ImageJ
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NOTICE! This is a static HTML version of a legacy ImageJ Trac ticket.
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<h1 id="trac-ticket-title">
<a href="1802.html">Ticket #1802</a>
<span class="status">(closed defect: moved)</span>
</h1>
<div id="ticket">
<div class="date">
<p>Opened 2013-04-12T14:21:08-05:00</p>
<p>Last modified 2013-08-12T16:11:07-05:00</p>
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<h2 class="summary searchable">Contrast adjusting not like IJ1</h2>
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<th id="h_reporter">Reported by:</th>
<td headers="h_reporter" class="searchable">
bdezonia
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<th id="h_owner">Owned by:</th>
<td headers="h_owner">
bdezonia
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<th id="h_priority">
Priority:
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major
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<th id="h_milestone">
Milestone:
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<td headers="h_milestone">
imagej2-b8-analysis
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<th id="h_component">
Component:
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<td headers="h_component">
Analysis Plugins
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<th id="h_version">
Version:
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<th id="h_severity">
Severity:
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serious
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Keywords:
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<th id="h_cc">
Cc:
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<td headers="h_cc" class="searchable">
G.Landini@…
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Blocked By:
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</td>
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<th id="h_blocking">
Blocking:
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<a class="assigned" href="1100.html" title="Improve Brightness and Contrast functionality [analysis]">#1100</a>
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<div class="description">
<h3 id="comment:description">
Description
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<p>
In the imagej devel maling list Gabriel Landini noted the following issues with the Brightness/Contrast plugin:<br />
</p>
<p>
Compare Contrast in IJ1 with IJ2. In IJ2 the contrast does not respect the brightness, as (without any brightness tweaking) the contrast should narrow the LUT to 127 or so. Currently IJ2 at 100 setting of contrast has a minimum of 0 and a maximum of 4.67 (?). I think contrast should control the width of the LUT from both sides, while keeping it centred. Currently it affects the max value and as a consequence it changes both the width and the position of the lut. So "Contrast" behaves same the "Maximum" slider of IJ1.<br />
</p>
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<h2 class="foldable">Change History</h2>
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<div class="change" id="trac-change-1">
<h3 class="change">
<span class="threading">
<span id="comment:1" class="cnum">
<a href="#comment:1">comment:1</a>
</span>
</span>
Changed 2013-06-04T12:43:46-05:00 by bdezonia
</h3>
<ul class="changes">
<li>
<strong>Milestone</strong>
changed from <em>imagej2-b7-ndim-data</em> to <em>imagej2-b8-analysis</em>
</li>
</ul>
<div class="comment searchable">
</div>
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<div class="change" id="trac-change-2">
<h3 class="change">
<span class="threading">
<span id="comment:2" class="cnum">
<a href="#comment:2">comment:2</a>
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Changed 2013-08-12T16:11:07-05:00 by curtis
</h3>
<div class="comment searchable">
<p>
I haven't worked on fixing this yet, but just wanted to mention that I agree with Gabriel's assessment. B&C needs to work like it does in IJ1. This is my fault, since the way I implemented the math in IJ2's B&C command differs.<br />
</p>
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</div>
<div class="change" id="trac-change-3">
<h3 class="change">
<span class="threading">
<span id="comment:3" class="cnum">
<a href="#comment:3">comment:3</a>
</span>
</span>
Changed 2015-02-23T11:09:40-06:00 by curtis
</h3>
<ul class="changes">
<li>
<strong>Status</strong>
changed from <em>new</em> to <em>closed</em>
</li><li>
<strong>Resolution</strong>
set to <em>moved</em>
</li>
</ul>
<div class="comment searchable">
<p>
Migrated to <a class="ext-link" href="https://github.com/imagej/imagej-plugins-commands/issues/21"><span class="icon"> </span>https://github.com/imagej/imagej-plugins-commands/issues/21</a><br />
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