for /d %%D in (*) do (
for %%f in (%%D\*.bmp) do (
FOR /F "usebackq" %%C ^
IN (`convert %%f -format "%%[pixel:p{0,0}]" info:`) ^
DO D:\Soft\ImageMagick\convert.exe %%f -transparent %%C %%f.png
)


for %%f in (%%D\*.png) do (
    D:\Soft\ImageMagick\convert.exe %%f -background none -gravity South -extent 160x160 %%f
)

FOR %%x IN (0,1,2,3,4,5,6,7) DO (
FOR %%y IN (1,2,3) DO (
D:\Soft\ImageMagick\convert.exe convert -background none +append %%D\*%%x_?_%%y.bmp.png %%D\*%%x_??_%%y.bmp.png %%D_%%x_%%y.png
))

FOR %%z IN (0,1,2,3) DO (
D:\Soft\ImageMagick\convert.exe convert -background none -append %%D_?_%%z.png %%D_%%z.png
)

)