[Gimp-developer] Saving black/white TIFF with 'CCITT Group 4' encoding

[Sven Neumann]

Hi,

On Sun, 2007-02-11 at 19:44 +0100, Manfred Joerg wrote:

> I just checked your revised tiff patch. 
> 
> 1. It doesn't allow the user to save a rgb image as CCITT Datagroup 3/4 even 
> if it contains only black and white pixels. Instead the user has to convert 
> the image to indexed mode black/white first.

That is the intended behavior. The user should only be allowed to select
the new compression schemes if the image is indexed with a b/w colormap.
The radio buttons should be insensitive otherwise and an allowed
compression scheme should be preselected.

As long as images saved that way are also loaded in Indexed mode with a
b/w colormap, this should be fine.


Sven