<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">JPEG2000 has a few different drivers. The old basic one is based on Jasper, and does not work well on large jp2s or those with special features. The newer open driver is OpenJPEG, and it should be able to handle large jp2 files. These two are built into the GDAL framework, and OpenJPEG is used by default over Jasper.<div class=""><br class=""></div><div class="">And there is ECWJP2 that should be able to handle almost anything. (there are also Kakadu and MrSID JP2 drivers, but I don't build those for my Mac GDAL framework)<div class=""><br class=""></div><div class="">BUT, it looks like my GDAL build is missing OpenJPEG, something changed in how it's configured and I missed it. I'll get a new QGIS package out with an updated GDAL with OpenJPEG.</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Apr 12, 2019, at 8:32 PM, Ramon Andinach <<a href="mailto:custard@westnet.com.au" class="">custard@westnet.com.au</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Grant,<div class=""><br class=""></div><div class="">There’s probably a better way, but the ECW driver includes jp2 drivers. Assuming that they’ve used the downloader on the QGIS website, then it’s a matter of downloading the ECW SDK, adding the plugin from here <a href="https://www.kyngchaos.com/software/frameworks/" class="">https://www.kyngchaos.com/software/frameworks/</a>. 3.6 uses the GDAL 2.4 plugins. It’s not point and click but has fairly good instructions.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">William (who puts these together) or one of the other Mac users are usually able to answer questions.</div><div class=""><br class=""></div><div class="">Ramon.<br class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On 13 Apr 2019, at 09:14, Grant Boxer <<a href="mailto:boxerg@iinet.net.au" class="">boxerg@iinet.net.au</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I have been running workshops using QGIS 3.6 and the Mac users have been unable to open jp2000 images. Does anyone have a fix for this?<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="">Grant Boxer<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="">Perth, Western Australia<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><o:p class=""> </o:p></span></div></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; 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<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div class="">-----</div><div class="">William Kyngesburye <kyngchaos*at*kyngchaos*dot*com></div><div class=""><a href="http://www.kyngchaos.com/" class="">http://www.kyngchaos.com/</a></div><div class=""><br class=""></div><div class="">"I ache, therefore I am. Or in my case - I am, therefore I ache."</div><div class=""><br class=""></div><div class="">- Marvin</div><br class="Apple-interchange-newline"></span></span>
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