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Vince
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Matt
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I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be rectified to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final rectified image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg:   

\OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif   

\OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be rectified to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final rectified image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg:  \OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif  \OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be rectified to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final rectified image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg: 

\OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif 

\OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

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Matt
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I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be warpedrectified to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final projectedrectified image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg: \OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif \OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

What is the correct gdalwarp command to use to get this to warprectify properly? (the same projected CRS as the source can be used for the target.)

I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be warped to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final projected image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg: \OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif \OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

What is the correct gdalwarp command to use to get this to warp properly? (the same projected CRS as the source can be used for the target.)

I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they need to be rectified to the final projection. The GCPs are embedded in the TIF and also in the tif.xml file.
While I can achieve warping to a final rectified image using the Clip tool, it takes a long time for each image. I've tried using GDAL warp utilities to do this, but am getting empty final images (all black).
eg: \OSGeo4W\bin\gdalwarp.exe -overwrite -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif \OSGeo4W\bin\gdalwarp.exe -overwrite --config GDAL_GEOREF_SOURCES PAM -co COMPRESS=DEFLATE IQALUIT_1948_A11535_043.tif out.tif

What is the correct gdalwarp command to use to get this to rectify properly? (the same projected CRS as the source can be used for the target.)

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Matt
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