whenever we apply some transformation using imagemagick convert command , it tries to ensure that the resulting image is of the same size as that of the original image . is there a way such that we get the whole rendered image with transparent/white background .
convert -verbose maanavulu_GIST-TLOTKrishna.tif \
-alpha set -matte -virtual-pixel transparent \
-distort perspective-projection '1.06,0,0.0,0,2.066,0.0,0.0,0.0' \
1.jpg
There's some tricks with fx & repage hinted at by the Distorting Usage documentation. I've found the easiest approach would be to set option:distort:viewport option to something large enough to capture the whole distortion, then -trim it to the finial size.
convert -verbose maanavulu_GIST-TLOTKrishna.tif \
-alpha set -matte -virtual-pixel transparent \
-set option:distort:viewport 1000x1000 \
-distort perspective-projection '1.06,0,0.0,0,2.066,0.0,0.0,0.0' \
-trim 1.jpg