src/Main.hs

   1 module Main
   2 where
   3
   4 import qualified Data.Array.Repa as R
   5 import System.Environment (getArgs)
   6
   7 import Grid (zoom)
   8 import MRI (
   9   flip_x,
  10   flip_y,
  11   mri_shape,
  12   mri_slice3d,
  13   read_word16s,
  14   round_array,
  15   swap_bytes,
  16   write_values_slice_to_bitmap,
  17   write_word16s,
  18   z_slice
  19   )
  20
  21 in_file :: FilePath
  22 in_file = "./data/mri.bin"
  23
  24
  25 main :: IO ()
  26 main = main3d
  27
  28 main3d :: IO ()
  29 main3d = do
  30   (s:_) <- getArgs
  31   let scale = read s :: Int
  32   let zoom_factor = (scale, scale, scale)
  33   let out_file = "output.bin"
  34   arr <- read_word16s in_file
  35   let arr'          = swap_bytes arr
  36   let arrMRI        = R.reshape mri_shape arr'
  37   let dbl_data      = R.computeS $ R.map fromIntegral arrMRI
  38   let output        = zoom dbl_data zoom_factor
  39   let word16_output = R.computeS $ round_array output
  40   write_word16s out_file word16_output
  41
  42
  43 main2d :: IO ()
  44 main2d = do
  45   (s:_) <- getArgs
  46   let scale = read s :: Int
  47   let zoom_factor = (1, scale, scale)
  48   let out_file = "output.bmp"
  49   arr           <- read_word16s in_file
  50   let arrSlice  = R.computeUnboxedS $ z_slice 50 $ flip_x $ flip_y $ swap_bytes arr
  51   let arrSlice' = R.reshape mri_slice3d arrSlice
  52
  53   -- If zoom isn't being inlined we need to extract the slice before hand,
  54   -- and convert it to the require formed.
  55   let dbl_data  = R.computeS $ R.map fromIntegral arrSlice'
  56   let output    = zoom dbl_data zoom_factor
  57   let arrSlice0 = R.computeUnboxedS $ z_slice 0 output
  58
  59   write_values_slice_to_bitmap arrSlice0 out_file