> > > > >Possibly the most common requirement of a caption > >> >is to place it beneath the image. But this does not > >> >appear to be easy. The following lines appraoch > >> >a solution but are not sufficient. > >> > > >> >convert A.gif \ > >> > -gravity South\ > >> > -background White -splice 0x30 \ > >> > -pointsize 20 -annotate 0 \ > >> > 'Fig 33.' \ > >> > B.gif > >> > > >> >The problem with the above is that it does not automatically > >> >centre the text vertically on the added splice, it places > >> >the baseline on or a little above the bottom of the splice, > >> >which may be nowhere near the centre. I have considered > >> >labels, captions, enclosing options in \(...\) but have not > >> >found a simple solution. > > > >> From: Fred Weinhaus > >> > >> montage -geometry +0+0 -background white -pointsize 20 \ > >> -label "Fig 33." A.gif B.gif > >> > > > >This does centre the label nicely, but is not ideal: > > > >a) I should have mentioned I prefer to use convert as it > >is more flexible than montage and so the one command can > >achieve many manipulations without having to resort to > >temporary files, whilst its syntax is more consistent > >with the apparent direction of ImageMagick. > > > >For example: > > > >b) For a pointsize of 14 (which is what I use on many captions), > >the result of the default antialiasing of the text is `terrible'. > >Montage does not seem to accept +antialiasing. > > > >c) There appears to be no control over the height of the background > >to the label. > > > >d) To add a 1 or 2 pixel border under the image and above the label, > >but nowhere else, may be a problem with montage: no -splice option, > >maybe no `line' with -draw option either.
> From: Fred Weinhaus \ Internet: ([EMAIL PROTECTED]) > > OK, then try this! > > You have to create a white image with of the same width as your A.gif > with the text centered and then append it to the bottom of A.gif > > > convert A.gif \ > \( -size $((`convert A.gif -format %w info:`))x30 xc:white \ > -gravity center -pointsize 20 -annotate 0 "Fig 33." \) \ > -append B.gif Yes, that works! However I am using the Korn Shell and can dispense with the (` and `) leaving $(....). I was hoping there really was a way with ImageMagick convert without having to shell out and start a second copy of convert, but I guess not. Given that this type of captioning is far more common than drawing upon the primary image area, there is an argument that convert should be able to manage it as easily as montage. Thanks for your help on this. _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
