The automatic resize does not exist by default. You can add photos with a 1000*1000 (max) resolution and each user can ask to display a maximum width and maximum height. The resize will be made at web browser level, so it may be poor quality.

A project has started to provide a slideshow where "web resized" photo would fit into the screen (javascript resized if necessary) and the photo is centered in the web browser window:

http://bacasable.fr/piwigo/picture.php? … slideshow=

I send an email to the author to know when he can distribute his template with the auto resize javascript function

Hi guys,

Any news about this topic?
Because my slideshows look like this: http://rigolus77.free.fr/photos/picture … slideshow=

Not really good, thoug!

Thank you

Fredrik wrote:

To bad that he does not respond to e-mail.

I would really like the automatic resizing functionality. This would make me be able to leave Gallery which does not really do what I want it to do.

Please try to reach him again, would be so great to have his stuff available to others!

Does Gallery implement a such functionality ?




This kind of functionality is something hard to implement..

Solution 1
Do resizing on the client side :
* why downloading a 6Mb file size to be displayed in a 800x600 screen size ?
* quality with resizing made by browser could give poor result ; all browser don't have good algorithms

Solution 2
Do resizing on the server side :
* CPU of server will be used to much
      - on a shared server, you will be tilted 
* so to reduce CPU usage, we can using a cache system where picture will be saved in different resolution
      - but if you have more than 10000 photos
      - users with different screen sizes
      CPU will be used again
      Cache will become bigger and bigger
* Try to convert a 6Mb picture file with GD2 in a PHP script : the process probably stop because an "out of memory" error
This kind of solution is only for people who have a dedicated server (in most case, a professional online gallery provider)

Solution 3
Do resizing on the admin client side, before uploading pictures (upload "small" "medium" and "large" size for example)
* with a pLoader usage it could be easier to imagine this (pLoader can easily make 3 different sized picture before uploading)
* without a ploader usage (like FTP) user have to make manually all sample size

PFor your information about Gallery 2: http://codex.gallery2.org/Gallery2:Image_Size_Settings
Resizing is not browser-dependent, but you can generate as many as you want for a single item.

Edit: My personal opinion is that not so many people will do more than two intermediate sizes, considering the original is a HR one.

HTH