Re: -border - Bug or stupidity on my part?

[Bonzo]

I am not very impressed with your image hosting choice.

[sinubux]

I had absolutely no idea about the hosting. I'm at work and just asked a colleague for a quick image host link. I'm very sorry about that. Is there any way of removing the post so I can repost it later? Apologies, truly.

[magick]

Done.

[sinubux]

Thanks v. much indeed.

[sinubux]

Good afternoon.

Running:

• ImageMagick 6.5.2-2

this command:

• montage -size 150x150 -bordercolor black -border 5x5 IMG*.JPG OUT.JPG

renders this ouput:



As you can see the border starts very broad then narrows along the image chain. Is this a bug or is it my error.

Thanks.

[magick]

We can reproduce the problem you posted and will have a fix in the next point release. Thanks.

[anthony]

• montage -size 150x150 -bordercolor black -border 5x5 IMG*.JPG OUT.JPG

Strange result. I wonder what caused it?

I will also say that it is a good idea to read in images FIRST before trying to do an operation on them.

montage -size 150x150 IMG*.JPG -bordercolor black -border 5x5 \
OUT.JPG

It may be that this will fix the problem in your current version.


NOTE -size is only a hint to the JPG library. the images that will be read into member will be larger than this (typically somewhere beterrn 150 to 512 pixels. As you did not specify a geomtry montage will default to a resize of the resulting image to abotu 128 pixel montage cells.

See the very first example in IM Examples, Montage Introduction
http://www.imagemagick.org/Usage/monatge/#montage

It is a good idea to either set the montage cell size, or trun it off using a -geometry option
just before the output image

To actually specify the final image size to use (say fit into a 100x100 pixels) in the montage you can either

resize while reading each image (good for memory)

Code: Select all

   montage -size 150x150  IMG*.JPG'[100x100]' .... -geometry +5+5 OUT.JPG

resize after read all the images using -resize

Code: Select all

   montage -size 150x150  IMG*.JPG -resize 100x100 .... -geometry +5+5 OUT.JPG

or let -geometry resize the images after you added your border (or whatever)

Code: Select all

   montage -size 150x150  IMG*.JPG  ...-border... -geometry 100x100+5+5 OUT.JPG

Again this may fix your border problem, as you are now controlling how montage resizes the images to fix the 'cell' array, rather than letting its defaults do the job.


I recommend reading the IM Examples section on Montage, so you can get what YOU want.

[sinubux]

Thanks a lot for the help. (And the fix).