Re: infrared beacon for pet door



I wrote:

Would almost think you could use a vactor descrition, like in characters in
a pdf document, to store outlines.
image to vector graphics?
Have to think about this some more, any suggestions welcome.

haha, was I right.
just a quick google found this open source program to convert bitmaps to vector graphics:
http://potrace.sourceforge.net/

I took the 'cat Template.jpg' from the 'flo' site, and did feed it through
convert Template.jpg Template.bmp

and then converted it to bitmap:
potrace -k .25 Template.bmp

The result:
ftp://panteltje.com/pub/Template.eps
The size is now only 1275 bytes.
Here we can do something.

You can download and look at that file with an encapsulated ps capable viewer, like ghostview:
gv Template.eps

potrace can make pdf too.
potrace -p -k .35 ./Template.bmp

And to make a pdf from it:
ps2pdf Template.ps
See it here:
ftp://panteltje.com/pub/Template.pdf

So for those without a ps and pdf viewer, lets make a gif:
convert Template.eps Template.gif

See the nice vector cat here:
ftp://panteltje.com/pub/Template.gif

So, now how to compare pdf to pictures......
At least I have the curves / vector grahics now :-)

PS. Sorry Windows users, 'time for change'.
LOL
.



Relevant Pages

  • Re: PDF print quality poor for graphs/figures (DVI>PS>PDF)
    ... I need to stay with vector graphics, whether its eps,pdf,emf,wmf - ... both EPS and PDF. ... setting or parameter thing or some variation thereof. ...
    (comp.text.tex)
  • Re: PDF reader that overrides fonts
    ... and convert their content to fully-editable text blocks, vector graphics ... non-standard font with a standard one automatically. ... saving back as pdf ruins the letter ... Is there another way to change the letter spacing? ...
    (Debian-User)
  • Re: creating logo in Word
    ... The colored squares are easy, but I cannot figure out how to get a "picture" of the type for the company name. ... If it's OK while in Word, but blurry in PDF, this mostly means your PDF creation software are not up to the task. ... compresses with loss, great for saving size almost w/o notice when dealing with photographs, very _bad_ choice for vector graphics) for your job at hand. ... it some sort of Word object that won't change on someone else's computer but will keep it's sharp edges in a PDF? ...
    (microsoft.public.word.docmanagement)
  • Re: How are *official* schematics presented?
    ... The size of a PDF (as pure vector graphics without embedded pixmaps) doesn't ...
    (sci.electronics.design)
  • Re: How are *official* schematics presented?
    ... Remember that PDF is basically a compressed subset of Postscript, ... i.e. it is capable of vector graphics, whereas PNG is a raster ...
    (sci.electronics.design)