2016.11.21 19:21 "Re: [Tiff] 12 bit byte format", by Kemp Watson
Do you have control of the original writing end of the data? If so, why not store as 16-bit? Vastly easierŠ
W. Kemp Watson
Objective Pathology Services Limited
tel. +1 (416) 970-7284
From: <email@example.com> on behalf of Aaron Boxer <firstname.lastname@example.org>
I am decompressing 12 bit RGB images, on little endian system.
Each channel is stored in 3 nibbles: for example red is stored as
0xR2 R1 R0
where R2 is the largest address, R0 is the smallest.
When reading a strip, the nibbles are stored in the memory buffer as follows,
of increasing memory address: in order
(brackets indicate bytes)
Lowest address.... (R1 R2) (G2 R0) (G0 G1) (B1 B2) (R2 B0) (R1 R0)....
Is it possible for libtiff to store the nibbles as follows:
R0 R1 R2 G0 G1 G2 B0 B1 B2............
(sorry for the non-standard notation here)