function PadHeight(clip image, int width, int height, int AR_WIDTH, int AR_HEIGHT)
{
# the frame is wider than we want, pad the top and bottom

# calculate what final height we need
nh = width * AR_HEIGHT / AR_WIDTH

# calculate the top and bottom borders
tb = (nh - height) / 2
bb = nh - height - tb
AddBorders(image, 0, tb, 0, bb)
}

function PadWidth(clip image, int width, int height, int AR_WIDTH, int AR_HEIGHT)
{
# the frame is taller than we want, pad the left and right

# calculate the final width we need
nw = height * AR_WIDTH / AR_HEIGHT

# calculate the left and right borders
lb = (nw - width) / 2
rb = nw - width - lb
AddBorders(image, lb, 0, rb, 0)
}

ImageSource("J:\0005.png")

# if you want 16:9 change these values to 16 and 9
AR_WIDTH = 16
AR_HEIGHT = 9

width = last.width
height = last.height

((width * AR_HEIGHT) > (height * AR_WIDTH)) \
   ? PadHeight(last, width, height, AR_WIDTH, AR_HEIGHT)\
   : PadWidth(last, width, height, AR_WIDTH, AR_HEIGHT)

### Set new target
tw = 704
th = 480
PointResize(tw, th)