input, f, a, "", , , 		Input image name
igi_output, f, a, "", , ,	Output igi script file name
x1, r, a, , , ,			left position of the plot
x2, r, a, , , ,			right position of the plot
y1, r, a, , , ,			bottom position of the plot
y2, r, a, , , ,			top position of the plot

mode, s, h, "al"