2011.12.22 00:50 "[Tiff] Announcing Libtiff 4.0.0", by Bob Friesenhahn

2012.01.04 14:07 "Re: [Tiff] reading rgb values from 16 bits tif images", by Olivier Paquet

On Wed, Jan 4, 2012 at 5:54 AM, Martin Alegre <tin.alegre@gmail.com> wrote:

I'm trying to read the RGB values of 16 bits tif images. To do that, I'm using the TIFFReadRGBAImage function to first load the data into memory and store it into a buffer. Then, by calling the TIFFGet{R,G,B} functions, I

I'm fairly certain the TIFFReadRGBAImage function will always load 8-bit data, converting whatever is in the image to that format. To get to the 16-bit values, try TIFFReadScanline. You'll then need to check various tags to interpret the data correctly: number of samples per pixel, bits per sample, etc.