<div>Hi, all</div><div><br></div><div>I am working on astronomical image processing plug-in for Opticks.</div><div><br></div><div><span class="Apple-style-span" style="font-family: Helvetica, Arial, sans-serif; font-size: 13px; line-height: 17px; "><p style="font-size: 10pt; line-height: 13pt; color: rgb(0, 0, 0); font-weight: normal; margin-top: 10px; margin-right: 0px; margin-bottom: 10px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; ">
<font color="#000000">In this week, I begin to implement two kinds of local non-linear sharpeners for image enhancement.</font></p><p style="font-size: 10pt; line-height: 13pt; color: rgb(0, 0, 0); font-weight: normal; margin-top: 10px; margin-right: 0px; margin-bottom: 10px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; ">
<font color="#000000">The first one is the extreme value operator. It creates sharp, objectively defined boundaries between image features.</font></p><p style="font-size: 10pt; line-height: 13pt; color: rgb(0, 0, 0); font-weight: normal; margin-top: 10px; margin-right: 0px; margin-bottom: 10px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; ">
The second nonlinear operator is local adaptive sharpener. It is a detail-enhancing operator that applies a stronger enhancement to low-contras parts of an image than it does to high-contrast parts. It is an sharpening mask for which contrast is controlled by neighborhood statistics.</p>
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<font color="#000000">Th</font><span class="Apple-style-span" style="font-family: arial; font-size: small; line-height: normal; ">e details of the report can be found at: </span><span class="Apple-style-span" style="font-family: arial; font-size: small; line-height: normal; "><a href="http://opticks.org/confluence/display/~yiwei/Status+Report+for+Week+5%2C+GSoC+2011">http://opticks.org/confluence/display/~yiwei/Status+Report+for+Week+5%2C+GSoC+2011</a></span></p>
</span></div><div><br></div><div>Next week I will f<span class="Apple-style-span" style="font-family: Helvetica, Arial, sans-serif; font-size: 13px; line-height: 17px; ">inish the implementation of the nonlinear local sharpeners </span></div>