Hi,<div><br></div><div>Sorry for my english.</div><div><br></div><div>I try to do a mosaic (with gdalbuildvrt and gdalwarp). When my images contain whites, I have to make the images list in right order, and theresult is perfect. But can some options (srcnodata...etc.) do the job automatically (no whites) ?</div>
<div><br></div><div>With : </div><div> - gdalbuildvrt blablabla -srcnodata "255 255 255"</div><div> - gdalwarp blablabla (or gdalwarp -dstnodata 0)</div><div><br></div><div>It almost works, except a strange thing : <a href="http://img706.imageshack.us/img706/8500/photohp.jpg">http://img706.imageshack.us/img706/8500/photohp.jpg</a></div>
<div><br></div><div>Right-top : nodata pixels are black --> ok</div><div>Right-top ( big L ): former white is black --> ok, but with a strange big L</div><div>Bottom-left : former white is stil partially visible again with strange colors</div>
<div><br></div><div><br></div><div>Is listing in right order the only way ? What are these strange colors ?</div><div><br></div><div><br></div><div>Thanks.</div>