Re: Scaling pictures
cyberco wrote:
> PIL is certainly a fine option, but I noticed that the scaled images
> (scaled with the ANTIALIAS filter) are not as good as you can get with,
> say, Photoshop. Maybe I'm just expecting too much, but I wish I could
> choose a higher quality rescaling algorithm. PIL still rocks though.
Sorry, I should have checked the facts a little better: you can set the
quality of the compression when saving:
img = Image.open('old.jpg')
img.thumbnail((640,480), Image.ANTIALIAS)
img.save('new.jpg', quality=95)
Now PIL is definitely the way to go. :)
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Re: Scaling pictures
PIL is certainly a fine option, but I noticed that the scaled images
(scaled with the ANTIALIAS filter) are not as good as you can get with,
say, Photoshop. Maybe I'm just expecting too much, but I wish I could
choose a higher quality rescaling algorithm. PIL still rocks though.
On Dec 28, 2:32 pm, "Ravi Teja" <[EMAIL PROTECTED]> wrote:
> Kajsa Anka wrote:
> > I would like some advice, I'm going to build a small app that will, among
> > other things, scale images so that they can be published on a web site. I've
> > never done any image processing in python before so I would like to ask what
> > is the best way of doing this, I will not do anything else than scaling the
> > images.
>
> > I found the Python Imaging Library but before I dive into that I would like
> > to know if there is a better way of doing this.Yes. Python Imaging Library
> > (PIL) is the preferred Python way to do
> this. The example is right in the
> documentation.http://www.pythonware.com/library/pil/handbook/image.htm
>
> from PIL import Image
> import glob, os
>
> size = 128, 128
>
> for infile in glob.glob("*.jpg"):
> file, ext = os.path.splitext(infile)
> im = Image.open(infile)
> im.thumbnail(size, Image.ANTIALIAS)
> im.save(file + ".thumbnail", "JPEG")
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Re: Scaling pictures
On Thu, 28 Dec 2006 11:53:41 +0100, Kajsa Anka wrote (in article <[EMAIL PROTECTED]>): Thanks for the answers, I'll use PIL. jem -- http://mail.python.org/mailman/listinfo/python-list
Re: Scaling pictures
Kajsa Anka: > I found the Python Imaging Library but before I dive into that I would like > to know if there is a better way of doing this. PIL is very fit for that. Note that it creates thumbnails already by itself, you can use that for bigger images too. Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Scaling pictures
Kajsa Anka wrote:
> I would like some advice, I'm going to build a small app that will, among
> other things, scale images so that they can be published on a web site. I've
> never done any image processing in python before so I would like to ask what
> is the best way of doing this, I will not do anything else than scaling the
> images.
>
> I found the Python Imaging Library but before I dive into that I would like
> to know if there is a better way of doing this.
Yes. Python Imaging Library (PIL) is the preferred Python way to do
this. The example is right in the documentation.
http://www.pythonware.com/library/pil/handbook/image.htm
from PIL import Image
import glob, os
size = 128, 128
for infile in glob.glob("*.jpg"):
file, ext = os.path.splitext(infile)
im = Image.open(infile)
im.thumbnail(size, Image.ANTIALIAS)
im.save(file + ".thumbnail", "JPEG")
--
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Re: Scaling pictures
Kajsa Anka wrote:
> I would like some advice, I'm going to build a small app that will, among
> other things, scale images so that they can be published on a web site. I've
> never done any image processing in python before so I would like to ask what
> is the best way of doing this, I will not do anything else than scaling the
> images.
>
> I found the Python Imaging Library but before I dive into that I would like
> to know if there is a better way of doing this.
I prefer using imagemagick whenever I have to do anything related to
images.
http://www.imagemagick.org/script/index.php
Resizing an image would be something like this
import os
filename = "picture.png"
outputfile = "picture_resized.png"
new_size = "100x100"
os.system("convert %s -resize %s %s" % (filename, new_size, outputfile))
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Scaling pictures
I would like some advice, I'm going to build a small app that will, among other things, scale images so that they can be published on a web site. I've never done any image processing in python before so I would like to ask what is the best way of doing this, I will not do anything else than scaling the images. I found the Python Imaging Library but before I dive into that I would like to know if there is a better way of doing this. -- http://mail.python.org/mailman/listinfo/python-list
