Image loading: Use 'float' instead of an undefined variable.

openface/openface_server.lua

@@ -61,7 +61,7 @@ while true do
    -- as a CSV.
    local imgPath = io.read("*line")
    if imgPath and imgPath:len() ~= 0 then
-      img[1] = image.load(imgPath, 3, byte)
+      img[1] = image.load(imgPath, 3, 'float')
       img[1] = image.scale(img[1], opt.imgDim, opt.imgDim)
       local rep
       if opt.cuda then