[Gdal-dev] Warping GeoTIFF colour image - beginner question(s)

[Frank Warmerdam]

On 5/2/05, Ilya Serebrianik <predator2448 at hotmail.com> wrote:
> I also tried using the precompiled tools from the GDAL website, specifically
> the warp tool and it also produces the squished effect. Perhaps the GeoTIFF
> I am using as a source is special in some sense and needs to be processed in
> a special way, I am not sure. Here is the information extracted using
> gdalinfo.exe about the image, it is around 75 MB: 

Ilya, 

A light bulb just went off for me.  I am willing to bet you are using a
simplistic GeoTIFF reader - perhaps ArcView or ArcGIS?  Many tools
have trouble reading multi-band TIFFs with "band interleaving", the
GDAL output default.   I would suggesting using the INTERLEAVE=PIXEL
creation option. 

ie. 
Change:

    // Create the output file. 
 hDstDS = GDALCreate( hDriver, fileNameOut, nPixels, nLines,
GDALGetRasterCount(hSrcDS), eDT, NULL );
    

To this:

    char *apszOptions[] = { "INTERLEAVE=PIXEL", NULL };
    
    hDstDS = GDALCreate( hDriver, fileNameOut, nPixels, nLines, 
                                      GDALGetRasterCount(hSrcDS), eDT, 
                                       apszOptions );
    
Best regards,
-- 
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