How can I open a CMYK tif image and read the pixels CMYK values?

I have search around and can see many questions on converting values but I cant find a library that gives me the CMYK values, I can only see examples that get the RGB values?

If there a library that can open CMYK tif files and do this?

Solution

One option is to use LibTiff.Net library (disclaimer: I am one of it's developers). The library can provide access to data in TIFF without conversion of the data.

Following methods might be useful for you:

Tiff.ReadScanline (generic access to decoded but not converted samples grouped in scanlines)
Tiff.ReadEncodedStrip (the same as above but for strips)
Tiff.ReadEncodedTile (the same as above but for tiles)

There are also Getting Started tutorial and some samples.