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compositing series of images in rows and columns?

Posted: Tue Oct 21, 2008 6:10 pm
by BabaG
hopefully this isn't as embarrassingly dumb as my last posting.

i want to composite several images together using nconvert.
what i want to do is to take several images, which are all the
same size, and place them in rows and columns to create a
new image. in other words, something like this:

pic1 in the upper left
pic2 in the upper middle
pic3 in the upper right

pic4 in the lower left
pic5 in the lower middle
pic6 in the lower right

can i do this with nconvert?
if so, can someone give me some pointers on how to get
this done, or direct me to a how-to or tutorial on the subject?

<edit>
in looking further, i'm seeing something about contact sheets
but this seems xnview only. would that be what i'm looking for?
how can i do this with nconvert?

also, image sequence sounds interesting. not seeing documentation
on how to use these with nconvert, though.

thanks,
BabaG

Re: compositing series of images in rows and columns?

Posted: Thu Oct 23, 2008 8:32 am
by DOS386
BabaG wrote:want to composite several images together using nconvert.
can i do this with nconvert? also, image sequence sounds interesting. not seeing documentation on how to use these with nconvert, though.
No answers ... I don't know or see any way how to do with NC :-( The task is trivial, however might conflict with NC's commandline parsing ... I haven't tried/pushed too hard so far, since I could code something for me when I need it badly one day. And NC indeed is underdocumented :-(

Posted: Sat Nov 01, 2008 4:37 pm
by rauwitt
You can use the watermark options "wmflag" and "wmfile" and overwrite a large picture with 9 resized images. Their sizes must be one third of the large picture:

(Linux) ./nconvert -wmfile /home/images/resized_image.jpg -wmflag top-right /home/images/large_picture.jpg

Posted: Tue Nov 04, 2008 12:20 am
by BabaG
thanks for the watermark tip. it only works with 3 columns
of 3 rows though? no variability in that?

thanks again,
BabaG

Posted: Sat Nov 08, 2008 1:42 pm
by rauwitt
Yes, only 3 columns (9 images) because there are 9 watermark position flags:

top-left, top-center, top-right
center-left, center, center-right
bottom-left, bottom-center, bottom-right