<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1433811954293_9012"><span id="yui_3_16_0_1_1433811954293_9014">Well, it's been 4 days and it seems the US-based reseller is not keen on providing the information either or they are not allowed to do so. Perhaps it's a protocol in agreement with commercial software providers. Without access to these such as ERDAS or ENVI, I am stuck in my preprocessing. </span></div><div id="yui_3_16_0_1_1433811954293_9011"> </div><div id="yui_3_16_0_1_1433811954293_9002"><div id="yui_3_16_0_1_1433811954293_9001"><br>
<br></div></div> <br><div class="qtdSeparateBR"><br><br></div><div style="display: block;" class="yahoo_quoted"> <div style="font-family: HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> On Friday, June 5, 2015 11:35 PM, Moritz Lennert <mlennert@club.worldonline.be> wrote:<br> </font> </div> <br><br> <div class="y_msg_container">On 05/06/15 12:28, Moritz Lennert wrote:<br clear="none">> On 05/06/15 10:52, Nikos Alexandris wrote:<br clear="none">>> * Moritz Lennert <<a shape="rect" ymailto="mailto:mlennert@club.worldonline.be" href="mailto:mlennert@club.worldonline.be">mlennert@club.worldonline.be</a>> [2015-06-05 09:43:40 +0200]:<br clear="none">>><br clear="none">>> ..<br clear="none">>><br clear="none">>>>>> Maybe with a little more crowd-hunting or by someone just contacting<br clear="none">>>>>> DigitalGlobe we would get the table of values right away?<br clear="none">>>>><br clear="none">>>>> I tried to contact DigitalGlobe in the past about WV2. I did not<br clear="none">>>>> succeed back then. Maybe now if someone has recently bought some WV3<br clear="none">>>>> imagery.<br clear="none">>>><br clear="none">>>> Is this data confidential ? I would imagine that for DigitalGlobe it is<br clear="none">>>> an advantage if software can use their products, or ?<br clear="none">>><br clear="none">>> I don't think this data is confidential. If we dig more, it must be<br clear="none">>> somewhere. But, as with WV2, and other sensors, when I set out to get<br clear="none">>> the respective numbers, I realised that it wasn't a str8 line. For<br clear="none">>> example, <<a shape="rect" href="http://apollomapping.com/" target="_blank">http://apollomapping.com/</a>> offered these numbers in white<br clear="none">>> papers and excel files, while DG did not.<br clear="none">>><br clear="none">>> Note, that commercial software did have these numbers integrated already<br clear="none">>> in their corresponding processing tools. And, though I haven't checked,<br clear="none">>> I guess there is already the option to perform conversions and<br clear="none">>> atmospherric corrections for WV3 imagery.<br clear="none">>><br clear="none">>> If these data are for sale, I am in to contribute in buying them, as<br clear="none">>> much as I can.<br clear="none">><br clear="none">> The problem is not only getting the data, but being allowed to integrate<br clear="none">> them into GPL'ed source code.<br clear="none">><br clear="none">> I'll see if I can do the approximation from the graphs today, so that we<br clear="none">> already have something to start with.<br clear="none"><br clear="none">Here is the data from the first graph in the document [1], i.e. visible, <br clear="none">nir and pan bands. The attached graphic showing the results seems quite <br clear="none">similar to the one in the document. But this is still only an <br clear="none">approximation !<br clear="none"><br clear="none">We still need the data for the swir bands, but I have to stop for now.<div class="yqt8929318003" id="yqtfd56854"><br clear="none"><br clear="none">Moritz<br clear="none"><br clear="none"><br clear="none"><br clear="none">[1] </div><br clear="none"><a shape="rect" href="https://www.digitalglobe.com/sites/default/files/DigitalGlobe_Spectral_Response_1.pdf" target="_blank">https://www.digitalglobe.com/sites/default/files/DigitalGlobe_Spectral_Response_1.pdf</a><div class="yqt8929318003" id="yqtfd13920"><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>