<div dir="ltr"><div><br></div><div>Muito obrigado Pedro Monteiro :)<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">No dia 19 de outubro de 2016 às 15:33, Pedro Monteiro <span dir="ltr"><<a href="mailto:monteiro.s.pedro@gmail.com" target="_blank">monteiro.s.pedro@gmail.com</a>></span> escreveu:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Boa tarde,<br><br>Penso que o mais simples será criar um raster virtual com transparência, e posteriormente fazer a conversão deste para tif<div><br></div><div>Exemplo:</div><div><br></div><div>1. gdalbuildvrt -srcnodata "<a href="tel:255%20255%20255" value="+351255255255" target="_blank">255 255 255</a>" destino.vrt entrada.jpg </div><div>2. gdal_translate -of Gtiff destino.vrt destino.tif<br><br>Cumprimentos,</div><div>Pedro Monteiro</div></div><br><div class="gmail_quote"><div><div class="h5"><div dir="ltr">On Wed, Oct 19, 2016 at 2:13 PM Marco Afonso <<a href="mailto:mafonso333@gmail.com" target="_blank">mafonso333@gmail.com</a>> wrote:<br></div></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr" class="m_-6269376419018935826gmail_msg">Boa tarde,<div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg">Julgo que a questão será direccionada para os GDAL masters :)</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg">Gostaria de saber se é possível converter um ficheiro no formato JP2000 para TIF com transparência. Se possível definir a côr branco (RGB <a href="tel:255%20255%20255" value="+351255255255" class="m_-6269376419018935826gmail_msg" target="_blank">255 255 255</a>) para transparência.</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg">Compressão para o ficheiro de saída TIF não é requisito para já.</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg">Segue a informação obtida pelo GDALINFO do ficheiro de origem.</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg">Obrigado! :)</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg"><div class="m_-6269376419018935826gmail_msg">Driver: JP2MrSID/MrSID JPEG2000</div><div class="m_-6269376419018935826gmail_msg">Files: pu_luz_zonamento.jp2</div><div class="m_-6269376419018935826gmail_msg"> pu_luz_zonamento.jp2.ovr</div><div class="m_-6269376419018935826gmail_msg"> pu_luz_zonamento.jp2.aux.xml</div><div class="m_-6269376419018935826gmail_msg">Size is 6636, 6122</div><div class="m_-6269376419018935826gmail_msg">Coordinate System is:</div><div class="m_-6269376419018935826gmail_msg">PROJCS["ETRS_1989_TM06-<wbr>Portugal",</div><div class="m_-6269376419018935826gmail_msg"> GEOGCS["GCS_ETRS_1989",</div><div class="m_-6269376419018935826gmail_msg"> DATUM["European_Terrestrial_<wbr>Reference_System_1989",</div><div class="m_-6269376419018935826gmail_msg"> SPHEROID["GRS_1980",6378137,<wbr>298.257222101,</div><div class="m_-6269376419018935826gmail_msg"> AUTHORITY["EPSG","7019"]],</div><div class="m_-6269376419018935826gmail_msg"> AUTHORITY["EPSG","6258"]],</div><div class="m_-6269376419018935826gmail_msg"> PRIMEM["Greenwich",0],</div><div class="m_-6269376419018935826gmail_msg"> UNIT["degree",0.<wbr>0174532925199433]],</div><div class="m_-6269376419018935826gmail_msg"> PROJECTION["Transverse_<wbr>Mercator"],</div><div class="m_-6269376419018935826gmail_msg"> PARAMETER["latitude_of_origin"<wbr>,39.66825833333333],</div><div class="m_-6269376419018935826gmail_msg"> PARAMETER["central_meridian",-<wbr>8.133108333333333],</div><div class="m_-6269376419018935826gmail_msg"> PARAMETER["scale_factor",1],</div><div class="m_-6269376419018935826gmail_msg"> PARAMETER["false_easting",0],</div><div class="m_-6269376419018935826gmail_msg"> PARAMETER["false_northing",0],</div><div class="m_-6269376419018935826gmail_msg"> UNIT["metre",1,</div><div class="m_-6269376419018935826gmail_msg"> AUTHORITY["EPSG","9001"]]]</div><div class="m_-6269376419018935826gmail_msg">Origin = (37881.833519887965000,-<wbr>285245.409715688320000)</div><div class="m_-6269376419018935826gmail_msg">Pixel Size = (0.169333333333329,-0.<wbr>169333333333331)</div><div class="m_-6269376419018935826gmail_msg">Metadata:</div><div class="m_-6269376419018935826gmail_msg"> Corder=PCRL</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>GeogAngularUnitsGeoKey=<wbr>Angular_Degree</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>GeogGeodeticDatumGeoKey=Datum_<wbr>European_Reference_System_1989</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>GeographicTypeGeoKey=User-<wbr>Defined</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>GTModelTypeGeoKey=<wbr>ModelTypeProjected</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>GTRasterTypeGeoKey=<wbr>RasterPixelIsArea</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>ProjCoordTransGeoKey=CT_<wbr>TransverseMercator</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>ProjectedCSTypeGeoKey=User-<wbr>Defined</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>ProjectionGeoKey=User-Defined</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_CHAR__<wbr>ProjLinearUnitsGeoKey=Linear_<wbr>Meter</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__1024__<wbr>GTModelTypeGeoKey=1</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__1025__<wbr>GTRasterTypeGeoKey=1</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__1026__<wbr>GTCitationGeoKey=PCS Name = ETRS_1989_TM06-Portugal</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2048__<wbr>GeographicTypeGeoKey=32767</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2049__<wbr>GeogCitationGeoKey=GCS Name = GCS_ETRS_1989|Ellipsoid = GRS_1980|Primem = Greenwich|</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2050__<wbr>GeogGeodeticDatumGeoKey=6258</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2054__<wbr>GeogAngularUnitsGeoKey=9102</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2057__<wbr>GeogSemiMajorAxisGeoKey=<wbr>6378137.000000</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2059__<wbr>GeogInvFlatteningGeoKey=298.<wbr>257222</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__2061__<wbr>GeogPrimeMeridianLongGeoKey=0.<wbr>000000</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3072__<wbr>ProjectedCSTypeGeoKey=32767</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3074__<wbr>ProjectionGeoKey=32767</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3075__<wbr>ProjCoordTransGeoKey=1</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3076__<wbr>ProjLinearUnitsGeoKey=9001</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3080__<wbr>ProjNatOriginLongGeoKey=-8.<wbr>133108</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3081__<wbr>ProjNatOriginLatGeoKey=39.<wbr>668258</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3082__<wbr>ProjFalseEastingGeoKey=0.<wbr>000000</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3083__<wbr>ProjFalseNorthingGeoKey=0.<wbr>000000</div><div class="m_-6269376419018935826gmail_msg"> GEOTIFF_NUM__3092__<wbr>ProjScaleAtNatOriginGeoKey=1.<wbr>000000</div><div class="m_-6269376419018935826gmail_msg">Image Structure Metadata:</div><div class="m_-6269376419018935826gmail_msg"> INTERLEAVE=PIXEL</div><div class="m_-6269376419018935826gmail_msg">Corner Coordinates:</div><div class="m_-6269376419018935826gmail_msg">Upper Left ( 37881.834, -<a href="tel:285%20245%20410" value="+351285245410" class="m_-6269376419018935826gmail_msg" target="_blank">285245.410</a>) ( 7d42'25.13"W, 37d 5'52.09"N)</div><div class="m_-6269376419018935826gmail_msg">Lower Left ( 37881.834, -<a href="tel:286%20282%20068" value="+351286282068" class="m_-6269376419018935826gmail_msg" target="_blank">286282.068</a>) ( 7d42'25.32"W, 37d 5'18.46"N)</div><div class="m_-6269376419018935826gmail_msg">Upper Right ( 39005.530, -<a href="tel:285%20245%20410" value="+351285245410" class="m_-6269376419018935826gmail_msg" target="_blank">285245.410</a>) ( 7d41'39.62"W, 37d 5'51.92"N)</div><div class="m_-6269376419018935826gmail_msg">Lower Right ( 39005.530, -<a href="tel:286%20282%20068" value="+351286282068" class="m_-6269376419018935826gmail_msg" target="_blank">286282.068</a>) ( 7d41'39.82"W, 37d 5'18.29"N)</div><div class="m_-6269376419018935826gmail_msg">Center ( 38443.682, -<a href="tel:285%20763%20739" value="+351285763739" class="m_-6269376419018935826gmail_msg" target="_blank">285763.739</a>) ( 7d42' 2.47"W, 37d 5'35.19"N)</div><div class="m_-6269376419018935826gmail_msg">Band 1 Block=1024x128 Type=Byte, ColorInterp=Red</div><div class="m_-6269376419018935826gmail_msg"> Min=0.000 Max=255.000 </div><div class="m_-6269376419018935826gmail_msg"> Minimum=0.000, Maximum=255.000, Mean=236.038, StdDev=66.045</div><div class="m_-6269376419018935826gmail_msg"> NoData Value=256</div><div class="m_-6269376419018935826gmail_msg"> Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192</div><div class="m_-6269376419018935826gmail_msg"> Metadata:</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_COVARIANCES=4361.<wbr>995430900208,2244.<wbr>864802420663,3368.225850604773</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MAXIMUM=255</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MEAN=236,<wbr>03793160725</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MINIMUM=0</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORX=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORY=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_STDDEV=66,<wbr>045404313247</div><div class="m_-6269376419018935826gmail_msg"> Image Structure Metadata:</div><div class="m_-6269376419018935826gmail_msg"> COMPRESSION=JP2000</div><div class="m_-6269376419018935826gmail_msg">Band 2 Block=1024x128 Type=Byte, ColorInterp=Green</div><div class="m_-6269376419018935826gmail_msg"> Min=0.000 Max=255.000 </div><div class="m_-6269376419018935826gmail_msg"> Minimum=0.000, Maximum=255.000, Mean=218.476, StdDev=87.277</div><div class="m_-6269376419018935826gmail_msg"> NoData Value=256</div><div class="m_-6269376419018935826gmail_msg"> Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192</div><div class="m_-6269376419018935826gmail_msg"> Metadata:</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_COVARIANCES=2244.<wbr>864802420663,7617.<wbr>276745283226,7051.036243014802</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MAXIMUM=255</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MEAN=218,<wbr>47574597805</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MINIMUM=0</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORX=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORY=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_STDDEV=87,<wbr>277011551056</div><div class="m_-6269376419018935826gmail_msg"> Image Structure Metadata:</div><div class="m_-6269376419018935826gmail_msg"> COMPRESSION=JP2000</div><div class="m_-6269376419018935826gmail_msg">Band 3 Block=1024x128 Type=Byte, ColorInterp=Blue</div><div class="m_-6269376419018935826gmail_msg"> Min=0.000 Max=255.000 </div><div class="m_-6269376419018935826gmail_msg"> Minimum=0.000, Maximum=255.000, Mean=215.145, StdDev=92.105</div><div class="m_-6269376419018935826gmail_msg"> NoData Value=256</div><div class="m_-6269376419018935826gmail_msg"> Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192</div><div class="m_-6269376419018935826gmail_msg"> Metadata:</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_COVARIANCES=3368.<wbr>225850604773,7051.<wbr>036243014802,8483.403263628108</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MAXIMUM=255</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MEAN=215,<wbr>14531106402</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_MINIMUM=0</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORX=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_SKIPFACTORY=1</div><div class="m_-6269376419018935826gmail_msg"> STATISTICS_STDDEV=92,<wbr>105392152838</div><div class="m_-6269376419018935826gmail_msg"> Image Structure Metadata:</div><div class="m_-6269376419018935826gmail_msg"> COMPRESSION=JP2000</div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div>-- <br class="m_-6269376419018935826gmail_msg"><div class="m_-6269376419018935826m_-9195676200023972830gmail_signature m_-6269376419018935826gmail_msg"><div dir="ltr" class="m_-6269376419018935826gmail_msg">Regards, <div class="m_-6269376419018935826gmail_msg">Marco Afonso</div><div class="m_-6269376419018935826gmail_msg"><a href="http://goo.gl/ZDtQjm" class="m_-6269376419018935826gmail_msg" target="_blank">http://goo.gl/ZDtQjm</a><br class="m_-6269376419018935826gmail_msg"></div><div class="m_-6269376419018935826gmail_msg"><span class="m_-6269376419018935826gmail_msg"></span><img src="https://dl.dropboxusercontent.com/u/17607469/qr.png" class="m_-6269376419018935826gmail_msg"><br class="m_-6269376419018935826gmail_msg"></div></div></div>
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