New
#11
The size should be the 81 pixels by 243 pixels, so each state is 81 x 81 pixels.
After you have split it into three 81 x 81 pixel layers you'll need to select one layer and resize the image with in that layer with most image editors it will be under Layers in the menu bar and then maybe something like Modify and then resize or size and then you will reduce it by a certain percentage which will be trial and error, and then do the other two layers exactly the same. When done you should still have a 81 pixel by 243 pixel image but each section should be smaller.
Jerry