Data.Bitmap.IO.File

Saving and loading uncompressed bitmaps. For loading from compressed formats, see the stb-image library: http://hackage.haskell.org/package/stb-image.

The goal of this module is to provide the simplest possible interface for loading and saving bitmaps; so you can start experimenting without much hassle.

Note: Endianness is the endianness of the host, so the resulting file is not portable across platforms with different endiannesses.

Documentation

readBitmap :: PixelComponent t => FilePath -> IO (IOBitmap t)

writeBitmap :: PixelComponent t => FilePath -> IOBitmap t -> IO ()

readRawData :: PixelComponent t => FilePath -> (Size, NChn, PixelComponentType) -> IO (IOBitmap t)

writeRawData :: PixelComponent t => FilePath -> IOBitmap t -> IO ()

Saves only the raw pixel data, no resolution etc.

hPutHeader :: PixelComponent t => Handle -> IOBitmap t -> IO ()

Writes a 16 byte header in the following format:

 dword xsize
 dword ysize
 dword nchn
 dword pixelcomponent_type

Pixel component encoding is the following:

• 1 = Word8
• 2 = Word16
• 3 = Word32
• 4 = Float

Endianness is the endianness of the host, so the resulting file is not portable across platform with different endiannesses.

hPutRawData :: PixelComponent t => Handle -> IOBitmap t -> IO ()

Saves only the raw pixel data, no resolution etc.

hGetHeader :: Handle -> IO (Size, NChn, PixelComponentType)

hGetRawData :: PixelComponent t => Handle -> (Size, NChn, PixelComponentType) -> IO (IOBitmap t)