I notice when doing a
that you get 3 channels A&B&L...
However, there a issue.
First if the image is 300dpi x 300dpi
then you delete A&B channel have only the L
channel, you will notice that the image,
is no longer 300dpi x 300dpi but,
is my understanding correct on this?
( Just trying to max out a color image into Grayscale.)
if this being the case, then decompose is not the way
to go, getting the most out of grayscale.
- [Gimp-user] Decompose Richard