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<body><span class="vcard"><a class="email" href="mailto:ctrueden@wisc.edu" title="Curtis Rueden <ctrueden@wisc.edu>"> <span class="fn">Curtis Rueden</span></a>
</span> changed
<a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - PNG wrong pixel values"
href="http://fiji.sc/bugzilla/show_bug.cgi?id=977">bug 977</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>CONFIRMED
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<td style="text-align:right;">CC</td>
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<td>ctrueden@wisc.edu
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<b><a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - PNG wrong pixel values"
href="http://fiji.sc/bugzilla/show_bug.cgi?id=977#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - PNG wrong pixel values"
href="http://fiji.sc/bugzilla/show_bug.cgi?id=977">bug 977</a>
from <span class="vcard"><a class="email" href="mailto:ctrueden@wisc.edu" title="Curtis Rueden <ctrueden@wisc.edu>"> <span class="fn">Curtis Rueden</span></a>
</span></b>
<pre>I can reproduce this issue on OS X with Apple Java 1.6.0_65 as well as with
Oracle Java 1.7.0_45. So it is unlikely to be a platform-specific issue
decoding PNG data.
In my brief investigation, some pixels are off by 1; e.g.:
SCIFIO: x=374, y=331, value=193,133,012 (#c1850c)
ImageJ1: x=374, y=331, value=192,132,012 (#c0840c)
The Bio-Formats plugin (from which the SCIFIO APNG code originated) also has
values matching ImageJ1, meaning that either A) SCIFIO introduced a regression
at some point; or B) Bio-Formats has since fixed this bug.
Will keep you posted on any progress.</pre>
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