YCbCr Tiffs and TifLib

[skorpion59]

Do we have any programming/graphic related people in the forums that understand Class "Y" (YCbCr, not RGB) Tiffs utilizing LZW and/or TifLib? I know it is a long shot but I thought I would take the chance and see.

Markos, this IS CtP related, that is why it is here. Although I would have a better chance if it was in the Apolyton or OT forums.

no problem about the thread...

you might want to take your chances in the OT...

[The Viceroy]

Not come across that, what it is your trying to do ? like yourself, dealt a good deal in RGB ..

[skorpion59]

The reason.....
to break the CtP(2) graphics files so I can create a pgm to add/change/modify them. This is THE biggest drawback to CtP2 and the 'New Terrain' thread brought this all back to light.

From looking at the executable, I see where Activision licensed LZW (which is a class "Y" compression option), is using the YCbCr format (calls YCbCrToRGB) and is using a Tiff-Specific library.

Initially, I thought Activision had their own proprietary library but I have changed my mind (at the moment). Another pgm I was checking into had a TifLib.Dll file which lead me to TifLib. The Tiff calls Activision makes and the TifLib calls are virtually identical. Also, TifLib supports 'Directories' which is how multiple images in 1 file are accessed.

By putting all these pieces together, I *think* I am on the right track. If not, I am thinking I still might be able to use this Library to access the graphic files. And since I know squat about these graphics files, I was hoping somebody might have a little knowledge in this area.

EDIT: http://www.libtiff.org

[This message has been edited by skorpion59 (edited February 08, 2001).]

[skorpion59]

EDIT: Sorry, decided not to post my comments about the OT forum and the conversations about wiping their rears. Lets just say it is a strange place at times.

[This message has been edited by skorpion59 (edited February 08, 2001).]