I have been using the 'GDAL Fill Nodata' function in QGIS in order to rectify downloaded Landsat 7 images, having created a relevant mask. Whilst said function has been successful in resolving bands 1 - 7 and satellite zenith, solar azimuth and solar zenith images, errors occur in regards to the satellite azimuth data. I have run the exact same function on each band [image].
The below represents the original satellite azimuth image (with gaps on both sides
The second picture is the (corrected) image output by the GDAL Fill Nodata function. As can be seen, the image has not been corrected as anticipated
Image 3 shows the original satellite zenith with gaps
Image 4 shows the corrected image output by QGIS
Does anyone have any ideas why the function would work on every other image, but not the satellite azimuth image?