How to make thumbnail image from web page?

[Trenk]

How to make thumbnail image from web page?
Some thing like networksolutions.com do.
eg. http://www.networksolutions.com/whois/results.jsp?domain=perl.com

Tnx.

 

[Marthan]

Use PHP

 

[Martina]

Intersting question?
Try with ImageMagics

 

[Peter J. Holzer]

Render, then subsample.

^^^^^^
That's the interesting part. How do you render a web-page into a
pixmap? Subsampling is trivial.

hp

 

[Michele Dondi]

^^^^^^
That's the interesting part. How do you render a web-page into a
pixmap? Subsampling is trivial.

I saw the question discussed recently. I can't remember whether here
or at PerlMonks. (Most probably, tertium non datur.) Off the top of my
memory, and probably in a sloppy way, options include (i) use a
rendering engine like gecko, or (ii) launch a browser and take a
screenshot. IIRC both actions can be automated in perl.


Michele

 

[Peter J. Holzer]

I saw the question discussed recently. I can't remember whether here
or at PerlMonks. (Most probably, tertium non datur.) Off the top of my
memory, and probably in a sloppy way, options include (i) use a
rendering engine like gecko,

Provided the rendering engine can render into a pixmap instead of a
window at all, and that it can be used from Perl.

or (ii) launch a browser and take a screenshot. IIRC both actions can
be automated in perl.

This limits you to the size of the browser window. Which is probably
what you want for a thumbnail, but I was thinking in a more general way
(sorry for not mentioning the shift in focus).

hp

 

[Michele Dondi]

Provided the rendering engine can render into a pixmap instead of a
window at all, and that it can be used from Perl.


This limits you to the size of the browser window. Which is probably
what you want for a thumbnail, but I was thinking in a more general way
(sorry for not mentioning the shift in focus).

As I wrote, I vaguely remember a discussion from people who do know
far better than me. Of course I may be entirely wrong.


Michele

 

[A. Sinan Unur]

Provided the rendering engine can render into a pixmap instead of a
window at all, and that it can be used from Perl.


This limits you to the size of the browser window. Which is probably
what you want for a thumbnail, but I was thinking in a more general
way (sorry for not mentioning the shift in focus).

There is a plugin for Firefox called Screengrab which I use. It is able
to take a snapshot of the entire contents of the browser window (not the
window decorations, though). Its source code might provide some clues.

Alternatively, on Win32, I would try to use Win32::GuiTest to scroll the
window as necessary (it is not obvious to me how I would figure that
out), take repeated snapshots using IrfanView and stitch them

Sinan

 

[Peter J. Holzer]

On Thu, 6 Dec 2007 00:38:52 +0100, "Peter J. Holzer"
Render, then subsample.
^^^^^^
That's the interesting part. How do you render a web-page into a
pixmap? Subsampling is trivial. [...]
or (ii) launch a browser and take a screenshot. IIRC both actions can
be automated in perl.

This limits you to the size of the browser window. Which is probably
what you want for a thumbnail, but I was thinking in a more general
way (sorry for not mentioning the shift in focus).

There is a plugin for Firefox called Screengrab which I use. It is able
to take a snapshot of the entire contents of the browser window (not the
window decorations, though).

Ah, that's a nice one. Didn't know that.

hp