RE: resizing image files.

Hi Chris,

this might seem a bit odd recommendation :)

I while back I had to do some image processing for my own app. I had to convert some dozend pictures and generate some hundered
output images in different formats and color schemes etc. I used the command line interface of Image Magick. Just used LispWorks as
'batch processor'.

Regards

Andreas

> -----Original Message-----
> From: owner-lisp-hug@lispworks.com
> [mailto:owner-lisp-hug@lispworks.com] On Behalf Of Chris Perkins
> Sent: Thursday, September 11, 2008 4:41 AM
> To: Lispworks HUG
> Subject: resizing image files.
> 
> 
> 
> I need to read in some JPEG files (and perhaps GIF, PNG),  size them
> down, possibly crop, and save them back out again (possibly switching 
> GIF to JPEG, vice versa) to a different path.
> 
> 
> For some reason I am convinced that I used the LispWorks GP
> library to 
> do this years ago when playing around with  LispWorks 4.  And, sure 
> enough, it seems tantalizingly close. But I can't find my toy 
> code from 
> years back and I can't quite seem to find the functions I 
> want in the LW 
> docs.    Does anyone have any advice, pointers, or sample code?
> 
> I'm not using CAPI in my current project, and I do not need
> to display 
> these images. Maybe that's my blind spot, perhaps what I'm 
> looking for 
> is there.  If anyone has  some guidance I'd appreciate it.
> 
> Chris
> 
> 
> P.S. There seem to be quite a few different common lisp image
> libraries 
> (ch-image, imago, etc.). I couldn't get ch-image to compile 
> under LW5.  
> Haven't looked at the others yet. If you know of one that'll work in 
> LispWorks and do what I need, let me know.
>