[gdal-dev] resampling artifacts

[Brent Fraser]

Has anyone experienced resampling artifacts using gdalwarp?

    I'm using v1.5.2, and with lanczos or cubicspline resampling, I get a vertical line and a horizontal line of seemingly random pixels about 6 pixels wide running through the center of the output image.  

    I'm resampling a 16-bit tif image from 12.5 meters to 200 meters.  The other resampling methods result in an ok output image.

I've attached a png to illustrate the effect.   I thought I'd ask before filing a bug report...

Thanks!
Brent Fraser
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