Thk u for your answer.
1.I have change the following code:
for(int i=1;i<=nY;i++)
to
for(int i=0;iThe RasterIO parameters are not correct.
>
>Try instead :
> poSrcBand->RasterIO(GF_Read,0,i,nX,1,pafScanline,nX,1,GDT_Float32,0,0);
> poDstBand->RasterIO(GF_Write,0,i,nX,1,pafScanline,nX,1,GDT_Float32
Zoltan,
With 4 GCPs, by default, gdalwarp uses a 1st-order polynomial
If you provide 6 GCPs or more, it will use a 2nd-order polynomial.
You can also try specifying -tps to use the Thin Plate Spline transformer.
Le Sunday 11 April 2010 13:38:21 Zoltan Szecsei, vous avez écrit :
> Hi All,
> Eve
Hi All,
Even's advice below (for cropping) was perfect for what I wanted, but
now I see that the original georeferencing of the scanned images was
not that great.
I have pixel values for the (skew) LatLong corners, but I cant fathom
out how to use these as GCPs to re-geo-reference the scans
Hi Even,
I think I have spent too much time using older proprietary software. I
figured the image would have to be deskewed before using "te" option,
but now that you mention it, it makes sense that gdal would (should)
look at all the tfw & embedded parameters before it willy-nilly
crops for th
The RasterIO parameters are not correct.
Try instead :
poSrcBand->RasterIO(GF_Read,0,i,nX,1,pafScanline,nX,1,GDT_Float32,0,0);
poDstBand->RasterIO(GF_Write,0,i,nX,1,pafScanline,nX,1,GDT_Float32,0,0);
The 'for(int i=1;i I use the following code to read data from a geotiff file and write it into
Zoltan,
I'd use something like : gdalwarp -te 24.75 -34.25 25.00 -34.00 src.tif
out.tif
In your case, you just need to be able to analyze the image name, compute
xmin, xmax, ymin, ymax, build the gdalwarp line and spawn the new process. So
I think you could use any programming/scripting langua
Zoltan,
GDAL supports reading & writing JPEG-IN-TIFF 12bit since version 1.7.0,
provided that you build it with internal libtiff and internal libjpeg.
See http://trac.osgeo.org/gdal/wiki/TIFF12BitJPEG
Best regards,
Even
Le Sunday 11 April 2010 09:49:54 Zoltan Szecsei, vous avez écrit :
> Hi,
Hi,
Is GDAL likely to get support for these image formats anytime soon?
(Aerial images from the Intergraph DMC system)
Thanks & regards,
Zoltan
z...@gl1:/home/gisdata$ gdalinfo 2820D_2009_151_06_0204_RGB.tif
ERROR 1: JPEGLib:Unsupported JPEG data precision 12
Driver: GTiff/GeoTIFF
Files: 2820D_
