[Tutor] identifying graphics attributes
Mon, 25 Feb 2002 19:16:56 -0500
I have been reading quite a bit about Python over the past month (since
I first subscribed to this list), and experimenting with the interpreter
when I have the opportunity. I'm really impressed with this language,
and if I wasn't already halfway through my work project (in PHP), I
would see if I could do it using Python instead.
However, I have come upon a possible dilemma, and I am thinking that
Python might be just the language to use for this. Let me explain:
The project that I am working on is essentially a scaled-down content
management system, to simply keep track of a database of project
information and information about graphics files. For instance, when
someone in our design studio creates a new image, and burns it to a CD,
they will at the same time go to the web site (my project) and enter
some information about the file such as its height and width in inches,
its size in MB, its resolution, and who they created it for. There are
other features of this application that aren't really relevant to the
point of this post.
One of my co-workers brought up a very good point -- once in a while, a
designer has a CD with sometimes 50 or more images on it, which will
need to be added to the database. This is kind of a problem, because
while it's not a big deal to fill out the information for ten or fifteen
files and submit them to the database via the web site, sitting there
and filling out fifty or more HTML forms is going to be a bit
inconvenient. It would be nice if there were a program that could do
the work of identifying the file's information (basic attributes like
width and height and resolution by crawling through a directory and
extracting the relevant data from the file.
PHP is not a good language for doing this, since it's really intended
for developing dynamic web sites, but it seemed that this is something
that Python might be able to do. The Python script could crawl through
a directory of files, extract the relevant information about each of
them and write them in XML to a file. The file could then be sent to
the web server, where another Python script would parse the information
and form the relevant SQL statements to insert this data into the
database. Because the level of detail involved is not very great (the
important parts are literally the width, height, file size, and
filename), this doesn't seem like a completely unapproachable task.
Is there a resource I could look to for information about using Python
to "examine" graphics files (like Photoshop or Illustrator documents)?
This will need to run on Mac OS 9, though that can be worked around if
necessary (I have Unix and windows machines at my disposal as well). I
would appreciate any input that anyone can give -- I know it seems like
a pretty big project to tackle right off the bat, but I'm really
interested in the plausibility of something like this.
Thanks very much