Hi How can I combine these two imagemagick command into one. I want to compare two images by columns. I thing I'am wasting too much time to write results to a disk. set /a "width = 1600" set /a "height = 1200" set /a "column = 5" set /a "x = 0" :while1 if %x% < %width% ( set /a "x = x + %column ...