mcImage.lua

arg = {...}
assert(#arg == 1, 'usage: imageDisplay <image name>')

local mon = screenAPI.wrapMon()
local image = fs.open('mcPaintFolder/images/'..arg[1], 'r')
local imageString = image.readAll()
local imageTable = textutils.unserialise(imageString)

for i = 1, #imageTable do
    for k = 1, #imageTable[i] do
        screenAPI.drawDot(i, k, imageTable[i][k])
    end
end