processing / concatenating pictures

Hi

1.
Let's assume I have a directory full of pictures (gif, jpg, tiff, etc.) Is
there a program that will list them all with their respective sizes like
pic1.gif : 240*360
pic2.jpg : 780*1024
....

2.
Is there a program that will allow me to cut off ore preserve some parts of
a picture:

+++++++++*** ***+++++++++
+ +*** ***+ +
+ +*** ***+ +
+ +*** ***+ +
+++++++++*** ***+++++++++

*** parts to cut away. So I need a program which will accept something like
prog --keep l 400 or
prog --keep l 20% to preserve the left 400 pixels or 20% respectively,
or
prog --cut l 400 or
prog --cut l 20% to cut away the left 400 pixels or 20% respectively.
The same should be possible for thr right side or the top / bottom part of
the picture.
There is no need for a center selection as applying a right and a left
operation will yield the desired result.

3.
Let's assume I have several pics, all the same size and I want to
concatenate them into one big picture like

+++ +++ +++
+1+ +2+ +3+
+++ +++ +++

+++ +++ +++ +++
+4+ +5+ +6+ +7+
+++ +++ +++ +++

+++ +++
+8+ +9+
+++ +++

+++ +++ +++ +++ +++
+A+ +B+ +C+ +D+ +E+
+++ +++ +++ +++ +++

So the programm should be able to process a list of file names with options
for horizontal space and vertical space, like, e.g.,
1 2 3 \n 4 5 6 7 \n 8 9 \n A B C D E --horspace=200dots --vertspace=400dots

Is there a program that can do so?
The crucial point here is: I want to arrange the pics in a grid with equal
horizontal and vertical distances.

Any suggestions?

TIA

Axel

Re: processing / concatenating pictures

Axel Schlicht wrote:
>
> 1.
> Let's assume I have a directory full of pictures (gif, jpg, tiff, etc.) Is
> there a program that will list them all with their respective sizes like
> pic1.gif : 240*360
> pic2.jpg : 780*1024
> ...

Use imagemagick:

$ convert -verbose * | head -n 5
bottom-left.gif GIF 15x15 15x15+0+0 PseudoClass 16c 122
bottom-right.gif GIF 15x15 15x15+0+0 PseudoClass 16c 123
button-accept-jobs.gif GIF 93x20 93x20+0+0 PseudoClass 32c 527
button-add-class.gif GIF 80x20 80x20+0+0 PseudoClass 32c 484
button-add-printer.gif GIF 86x20 86x20+0+0 PseudoClass 32c 487

> 2.
> Is there a program that will allow me to cut off ore preserve some parts of
> a picture:
>
> +++++++++*** ***+++++++++
> + +*** ***+ +
> + +*** ***+ +
> + +*** ***+ +
> +++++++++*** ***+++++++++

Use imagemagick:

$ convert --help | grep crop
-crop geometry cut out a rectangular region of the image

--
Best regards | "The only way to really learn scripting is to write
Cyrus | scripts." -- Advanced Bash-Scripting Guide

Re: processing / concatenating pictures

Axel Schlicht wrote:
>
> 3.
> Let's assume I have several pics, all the same size and I want to
> concatenate them into one big picture

Install imagemagick and open
file:///usr/share/doc/imagemagick/www/montage.html in your browser or

$ montage --help

--
Best regards | "The only way to really learn scripting is to write
Cyrus | scripts." -- Advanced Bash-Scripting Guide

Re: processing / concatenating pictures

Axel Schlicht wrote:
>
> 3.
> Let's assume I have several pics, all the same size and I want to
> concatenate them into one big picture

Use imagemagick:

http://redux.imagemagick.org/script/montage.php

or

$ montage --help

--
Best regards | "The only way to really learn scripting is to write
Cyrus | scripts." -- Advanced Bash-Scripting Guide

Re: processing / concatenating pictures

Hi Cyrus
Thanks for the fast answer. Will look into it.

Axel