<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Hi,<div>Perhaps this can help: <a href="https://gdal.orgdrivers/raster/gpkg.html">https://gdal.orgdrivers/raster/gpkg.html</a></div><div><br></div><div><p style="font-size: 16px; box-sizing: border-box; line-height: 24px; margin: 0px 0px 24px; caret-color: rgb(64, 64, 64); color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; -webkit-text-size-adjust: 100%;">“Various kind of input datasets can be converted to GeoPackage raster :</p><ul class="simple" style="font-size: 16px; box-sizing: border-box; margin: 0px 0px 24px; padding: 0px; list-style-position: initial; list-style-image: initial; line-height: 24px; caret-color: rgb(64, 64, 64); color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; -webkit-text-size-adjust: 100%;"><li style="box-sizing: border-box; list-style: disc; margin-left: 24px;"><p style="box-sizing: border-box; line-height: 24px; margin: 0px;">Single band grey level</p></li><li style="box-sizing: border-box; list-style: disc; margin-left: 24px;"><p style="box-sizing: border-box; line-height: 24px; margin: 0px;">Single band with R,G,B or R,G,B,A color table</p></li><li style="box-sizing: border-box; list-style: disc; margin-left: 24px;"><p style="box-sizing: border-box; line-height: 24px; margin: 0px;">Two bands: first band with grey level, second band with alpha channel</p></li><li style="box-sizing: border-box; list-style: disc; margin-left: 24px;"><p style="box-sizing: border-box; line-height: 24px; margin: 0px;">Three bands: Red, Green, Blue</p></li><li style="box-sizing: border-box; list-style: disc; margin-left: 24px;"><p style="box-sizing: border-box; line-height: 24px; margin: 0px;">Four band: Red, Green, Blue, Alpha</p></li></ul><p style="font-size: 16px; box-sizing: border-box; line-height: 24px; margin: 0px 0px 24px; caret-color: rgb(64, 64, 64); color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; -webkit-text-size-adjust: 100%;">GeoPackage rasters only support Byte data type.”</p><p style="font-size: 16px; box-sizing: border-box; line-height: 24px; margin: 0px 0px 24px; caret-color: rgb(64, 64, 64); color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; -webkit-text-size-adjust: 100%;">My guess is that if the original raster does not correspond to one of the categories above, it will be converted to the closest format. </p></div><div><br><div dir="ltr">Nicolas Cadieux<div><a href="https://gitlab.com/njacadieux">https://gitlab.com/njacadieux</a></div></div><div dir="ltr"><br><blockquote type="cite">Le 1 déc. 2020 à 09:58, Alberto Vavassori <alberto.vavassori@polimi.it> a écrit :<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">Hello everybody. I have an issue regarding the Geopackage format. I have tried to import a singleband raster file (it represents the land cover, thus every pixel has a single integer value corresponding
to the land cover class), but this operation seems to modify the raster characteristics: the raster becomes a 4-bands raster and the pixels values change accordingly (basically, the original raster is saved in the Geopackage as an RGB image). It seems to be
a bug of QGIS. I have also tried to use GDAL translate through the processing toolbox of QGIS to convert the TIFF file to a Geopackage file, but the result is the same.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">Has anybody faced this problem? May anybody suggest a way to work this problem out?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">Thank you.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">Alberto<o:p></o:p></span></p>
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