Show Image. But there is something I think could help you. It's scripting, but it's an easy line of code...
$game_screen.pictures[number].show(name, origin, x, y, zoom_x, zoom_y, opacity, blend_type)
Only problem with this line of code is space. So you need to break it apart, like this:
p = $game_screen.pictures[number]
name=image_name
x = x
y = y
zx = zoom_x
zy = zoom_y
o = origin
op = opacity
bl = blend_type
p.show(name,o,x,y,zx,zy,op,bl)
name: The name of your image file at Pictures folder. Example: "green_bar"
x: the x position for your image. Any numerical value.
y: the y position for your image. Any numerical value.
zx: The x scale for your image. A percentage. Give it 100.0 to make it the normal scale.
zx: The y scale for your image. A percentage. Give it 100.0 to make it the normal scale.
o: either 0 or 1. 0 means the image is positioned with the top-left corner as reference. 1 means the reference is its center.
op: opacity. Goes from 0 to 255.
bl: blend type. 0 displays the image normally. 1 uses the blend mode multiply (as in Photoshop). 2 makes it use an inverted palette.
==
Now, what oportunities gives you this that the regular Show image command doesn't? That you can use variables for anything.
p = $game_screen.pictures[number]
name="green_bar"
x = $game_variables[1]
y = $game_variables[2]
zx = $game_variables[3]
zy = $game_variables[4]
o = 0
op = 160
bl = 1
p.show(name,o,x,y,zx,zy,op,bl)
Hope this helps.