Adam,<div><br></div><div>The kakadu library is very fast compared to many others. Each format/library has it's own advantages and disadvantages regarding speed, file size, data loss, license cost, compatibility with raster data types, etc.</div>
<div><br></div><div>Could you provide some statistics of the times taken to encode/decode with various drivers/formats? Your results may not be the true speeds but they will give a basis for comparison to many users.<span></span><br>
<br>On Friday, April 13, 2012, ahbrown wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I am wondering why there is such a large difference in the time to convert a<br>
large O(250MB) Jpeg2000 image to GeoTiff format in comparison with<br>
conversion to other formats (e.g. jpeg, png)?<br>
<br>
I am using the Kakadu Jpeg2000 driver. With a 43221 x 36021 Jpeg2000 image.<br>
<br>
Results of timed conversions are as follows:<br>
<br>
<br>
<br>
Using RasterIO directly (via the Java wrapper) the conversion takes around 6<br>
seconds.<br>
<br>
Any insights are appreciated.<br>
<br>
Thanks,<br>
<br>
<br>
Adam<br>
<br>
--<br>
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</blockquote></div><br><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br><br>+91-9494447584<br>17.2416N 80.1426E<br>