Re: [gdal-dev] Border slivers and JPEG2000 compression

2008-12-18 Thread Matt Wilkie
to get gdal_rasterize to write JP2KAK? ** Michael Smith State GIS Manager Maine Office of GIS -Original Message- From: Matt Wilkie [mailto:matt.wil...@gov.yk.ca] Sent: Tuesday, December 16, 2008 1:50 PM To: Smith, Michael Cc: gdal-dev@lists.osgeo.org Subject: Re: [gdal-de

RE: [gdal-dev] Border slivers and JPEG2000 compression

2008-12-18 Thread Smith, Michael
-Original Message- From: Matt Wilkie [mailto:matt.wil...@gov.yk.ca] Sent: Tuesday, December 16, 2008 1:50 PM To: Smith, Michael Cc: gdal-dev@lists.osgeo.org Subject: Re: [gdal-dev] Border slivers and JPEG2000 compression Hi Micheal, try the nearblack utility (which is a relatively new

Re: [gdal-dev] Border slivers and JPEG2000 compression

2008-12-16 Thread Matt Wilkie
Hi Micheal, try the nearblack utility (which is a relatively new addition): http://www.gdal.org/nearblack.html "This utility will scan an image and try to set all pixels that are nearly black (or nearly white) around the collar to exactly black (or white). This is often used to "fix up" lossy

[gdal-dev] Border slivers and JPEG2000 compression

2008-12-15 Thread Smith, Michael
I have several orthophotos which are TIFFs, and they align with the USGS quadrangle corners, which means they are rotated slightly, leaving small uneven slivers along the edges where pixel value is 0 (the data for these are available from adjacent tiles). All the pixels inside the 'real' area of t