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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please see the attached sub-region screen capture of an image I created using gdalwarp 1.9. I used MS Paint to highlight in red several columns of pixels that repeat a pattern from left to right across the image (vertically only) where the pixels are the same color for both pixel columns when in fact they should be different. The problem seems to occur whether I am going from source wkt (wgs84 in this case) to the same coord system or if I go from wgs84 to another coord system. It only seems to happen when the source image is in WGS84 though.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any help is much appreciated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best regards,<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Martin</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>