AccuRaw monochrome is built just to produce the best possible monochrome image:
- Accuraw uses all your image data. The color filters on Bayer (or X-Trans) image sensors color sensitivities' overlap considerably. Raw converters designed to produce color images in effect throw away the overlapped areas. (For the technically minded, this occurs due to the negative off-axis components in the color conversion matrix). But AccuRaw Monochrome keeps this information, resulting in images with better shadow detail and greater dynamic range.
- AccuRaw Monochrome's demosaicing algorithm is optimized for monochrome. The demosaicing algorithm of raw converters designed for color output are optimized to reduce color artifacts. AccuRaw Monochrome's algorithm is optimized to reduce luminance artifacts.
- AccuRaw Monochrome caters for modified sensors. AccuRaw monochrome has algorithms specifically for cameras that been modified either by the complete removal of the Color Filter Array (CFA), otherwise knows as "de-Bayering", or just by being modified for a different spectral sensitivity, e.g., of IR or UV operation. If cameras with modifications such as these are processed through a conventional raw developer, artifacts and blurring will result. See this blog post for more details.