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1431.html
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1431.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">
<html xmlns="http://www.w3.org/1999/xhtml">
<!-- See: http://trac.edgewall.org/wiki/TracInterfaceCustomization -->
<head>
<title>
#1431 (Display range should never be 0)
– ImageJ
</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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</head>
<body>
<div id="main">
<div id="notice" style="width: 58em; max-width: 100%; margin-left: auto; margin-right: auto; border: 1px solid black; margin-bottom: 2em">
<table>
<tr>
<td style="font-size: 72px; color: firebrick; padding: 0 10px 0 10px">⚠</td>
<td>
<p style="margin: 0.4em">
NOTICE! This is a static HTML version of a legacy ImageJ Trac ticket.
</p>
<p style="margin: 0.4em">
The ImageJ project now
<a href="https://imagej.net/Issues">uses GitHub Issues</a> for issue tracking.
</p>
<p style="margin: 0.4em">
Please
<a href="https://github.com/imagej/imagej/issues/new">file all new issues</a>
there.
</p>
</td>
</tr>
</table>
</div>
<div id="content" class="ticket">
<h1 id="trac-ticket-title">
<a href="1431.html">Ticket #1431</a>
<span class="status">(closed defect: fixed)</span>
</h1>
<div id="ticket">
<div class="date">
<p>Opened 2012-08-23T14:00:41-05:00</p>
<p>Last modified 2013-10-07T14:53:29-05:00</p>
</div>
<h2 class="summary searchable">Display range should never be 0</h2>
<table class="properties">
<tr>
<th id="h_reporter">Reported by:</th>
<td headers="h_reporter" class="searchable">
bdezonia
</td>
<th id="h_owner">Owned by:</th>
<td headers="h_owner">
curtis
</td>
</tr>
<tr>
<th id="h_priority">
Priority:
</th>
<td headers="h_priority">
major
</td>
<th id="h_milestone">
Milestone:
</th>
<td headers="h_milestone">
imagej2-b8-analysis
</td>
</tr><tr>
<th id="h_component">
Component:
</th>
<td headers="h_component">
Core
</td>
<th id="h_version">
Version:
</th>
<td headers="h_version">
</td>
</tr><tr>
<th id="h_severity">
Severity:
</th>
<td headers="h_severity">
serious
</td>
<th id="h_keywords">
Keywords:
</th>
<td headers="h_keywords" class="searchable">
</td>
</tr><tr>
<th id="h_cc">
Cc:
</th>
<td headers="h_cc" class="searchable">
</td>
<th id="h_blockedby">
Blocked By:
</th>
<td headers="h_blockedby">
</td>
</tr><tr>
<th id="h_blocking">
Blocking:
</th>
<td headers="h_blocking">
<a class="new" href="1457.html" title="Fix obviously failing commands [analysis]">#1457</a>
</td>
<th>
</th>
<td>
</td>
</tr>
</table>
<div class="description">
<h3 id="comment:description">
Description
</h3>
<div class="searchable">
<p>
Theres an issue with default display ranges. Create a new image filled with black. Set Options > Channels so that FG is 255. Now draw with brush tool. Nothing is displayed. Adjust brightness/contrast and changed pixels are apparent. I think the display range must default to some size > 0.<br />
</p>
<p>
(Note that Curtis has started some work in this in the new-image branch)<br />
</p>
</div>
</div>
</div>
<div>
<h2 class="foldable">Change History</h2>
<div id="changelog">
<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 2012-09-07T11:02:30-05:00 by bdezonia
</h3>
<ul class="changes">
<li>
<strong>Blocking</strong>
<em>1457</em> added; <em>1345</em> removed
</li><li>
<strong>Milestone</strong>
changed from <em>imagej-2.0.0-beta4</em> to <em>imagej-2.0.0-beta5</em>
</li>
</ul>
<div class="comment searchable">
</div>
</div>
<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>
</span>
</span>
Changed 2012-10-10T14:00:53-05:00 by curtis
</h3>
<ul class="changes">
<li>
<strong>Milestone</strong>
changed from <em>imagej-2.0.0-beta6</em> to <em>imagej-2.0.0-beta7</em>
</li>
</ul>
<div class="comment searchable">
</div>
</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 2013-07-30T11:00:52-05:00 by bdezonia
</h3>
<div class="comment searchable">
<p>
Ticket <a class="closed ticket" href="1948.html" title="defect: Brightness/Contrast (closed: fixed)">#1948</a> is another example where propagating a display range of zero causes problems.<br />
</p>
</div>
</div>
<div class="change" id="trac-change-4">
<h3 class="change">
<span class="threading">
<span id="comment:4" class="cnum">
<a href="#comment:4">comment:4</a>
</span>
</span>
Changed 2013-07-30T11:09:45-05:00 by bdezonia
</h3>
<div class="comment searchable">
<p>
Ticket <a class="closed ticket" href="1948.html" title="defect: Brightness/Contrast (closed: fixed)">#1948</a> is another example where propagating a display range of zero causes problems.<br />
</p>
</div>
</div>
<div class="change" id="trac-change-5">
<h3 class="change">
<span class="threading">
<span id="comment:5" class="cnum">
<a href="#comment:5">comment:5</a>
</span>
</span>
Changed 2013-07-30T11:13:17-05:00 by bdezonia
</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>fixed</em>
</li>
</ul>
<div class="comment searchable">
<p>
Fixed with commit 755f6cf0352fb59f643ccd163cbdfc58b9217bc9<br />
</p>
</div>
</div>
<div class="change" id="trac-change-6">
<h3 class="change">
<span class="threading">
<span id="comment:6" class="cnum">
<a href="#comment:6">comment:6</a>
</span>
</span>
Changed 2013-10-07T14:53:29-05:00 by bdezonia
</h3>
<div class="comment searchable">
<p>
Note I changed how range is calculated in commit 2c5e74e754d4788a4ae385df0a4452282221d485<br />
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>