Legacy ImageMagick Discussions Archive

Win 7 x64
ImageMagick 6.9.3-7 Q16 x64 2016-03-06

Ok, so I break video file into png sequence using ffmpeg :
ffmpeg -i "%%i" -r 10 -f image2 "%%~dpni\%%10d.png"

Then merge it all in one square sprite sheet with montage :
montage "%%~dpni\*.png" -background transparent -geometry +0+0 -tile 8x ...

Is there a way to get sprite sheet dimensions when montaging images sequence? I need width and height data to be appended automatically to file name.