I am trying to convert png images into JP2 with sampling factor. I am imagemagick tool for conversion, as they mentioned in docs -sampling-factor is used for sampling but it did not work.
convert wizard.png -colorspace YUV -sampling-factor 2,2 wizard.jp2
My command, it did not work
convert test/images/kodim$i.png -quality $(($j*5)) -colorspace YUV -sampling-factor 4,2 test/JP2/kodim$i/`printf "%02d" $j`.jp2