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Even,</div>
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<span id="" title="" class="">Thank you</span> for your reply.</div>
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You are right: ds = gdal.GetDriverByName('GTiff').Create( ) is under 4GB.</div>
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It was the next command pushes GTiff over 4GB:</div>
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ds.BuildOverviews('AVERAGE_MAGPHASE', [2,4,8,16]) </div>
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Is there a way to specify BIGTIFF in ds.<span style="background-color:rgb(255, 255, 255);display:inline !important">BuildOverviews() ?</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Even Rouault <even.rouault@spatialys.com><br>
<b>Sent:</b> April 20, 2021 3:56 PM<br>
<b>To:</b> ni hao <ni_hao88@hotmail.com>; gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org><br>
<b>Subject:</b> Re: [gdal-dev] Python create BigTIFF image</font>
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<div class="x_moz-cite-prefix">Le 20/04/2021 à 20:53, ni hao a écrit :<br>
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<div>Hi list,</div>
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<div>I use Python to create GeoTiff image, and I get the error because it exceeds 4GB.</div>
<div>ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize, 1, gdal.GDT_Float32)<br>
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<div><span><span><span> ERROR 1: TIFFReadDirectory:Failed to read directory at offset 4294957836</span></span></span><br>
<span><span><span> ERROR 1: TIFFWriteDirectoryTagData:Maximum TIFF file size exceeded. Use BIGTIFF=YES creation option.</span></span></span><br>
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<div>I need to turn on <strong>BIGTIFF=YES</strong></div>
<div><a href="https://gdal.org/drivers/raster/gtiff.html" id="LPlnk">https://gdal.org/drivers/raster/gtiff.html</a><br>
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<div>But I don't do know how. I tried: </div>
<div><span>ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize, 1, gdal.GDT_Float32, BIGTIFF=YES)</span><br>
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<p><span>ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize, 1, gdal.GDT_Float32, options=['BIGTIFF=YES'])</span></p>
<p><span>But as you didn't specify compression, it should have done that automatically. Can you indicate the exact values of xsize and ysize you use ?<br>
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<div><span>but it didn't work.</span></div>
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