(PECL haru >= 0.0.1)
HaruDoc::loadRaw — Load a RAW image
$filename
   , int $width
   , int $height
   , int $color_space
   )Loads a RAW image.
filename
     The name of a RAW image file.
width
     The width of the image.
height
     The height of the image.
color_space
     The color space of the image. Can be one of the following values:
HaruDoc::CS_DEVICE_GRAY
        HaruDoc::CS_DEVICE_RGB
        HaruDoc::CS_DEVICE_CMYK
        Returns a HaruImage instance.
Throws a HaruException on error.