[fedora-websites] #155: Images used on home page not optimized and increase bandwidth by 1000% or more

[fedora-badges]

#155: Images used on home page not optimized and increase bandwidth by 1000% or
more
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 Reporter:  herbert123                     |       Owner:  webmaster
     Type:  enhancement                    |      Status:  new
 Priority:  major                          |   Milestone:
Component:  General                        |     Version:
 Keywords:  image optimization, bandwidth  |  Blocked By:
 Blocking:                                 |
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 All the images and banners are saved as png, and while some require this
 (for eample the games spin) others do not and needlessly increase the
 bandwidth of the website.

 In more than one case png is chosen where jpg would save a huge amount of
 space and download time.

 Quick test in Riot and Color Quantizer:

 f17_banner_background.png (Riot):
 original: ~1.8mb
 Optimized jpg (no change in visual quality): 53kb

 games-banner.png (Color Quantizer):
 original: ~250kb
 optimized 512colour version: ~120kb

 fudcon-blacksburg-2012.png (Riot or Color Quantizer):
 Original: ~1.23mb
 Optimized jpg (no change in visual quality): 170kb
 Optimized png 512 colours with full alpha: ~512kb

 jbossas7_bkg.png (Riot or Color Quantizer)
 Original: ~250kb
 Optimized jpg no visual change: ~40kb
 Optimized png 128 colours: ~70kb

 f17_fpo_screenshot.png (Color Quantizer):
 Original: ~100kb
 Optimized 128 colours + full alpha: ~25kb

 And I did not even spend time on fine-tuning the settings.

 A reduction from ~3.63mb to ~400kb! Well, it's your bandwidth, and it has
 a detrimental impact on page download times as well.

-- 
Ticket URL: <https://fedorahosted.org/fedora-websites/ticket/155>
fedora-websites <https://fedoraproject.org/wiki/Websites>
Fedora Website Team's Trac instance

[fedora-badges]

#155: Images used on home page not optimized and increase bandwidth by 1000% or
more
--------------------------+-------------------------------------------
  Reporter:  herbert123   |      Owner:  webmaster
      Type:  enhancement  |     Status:  closed
  Priority:  major        |  Milestone:
 Component:  General      |    Version:
Resolution:  fixed        |   Keywords:  image optimization, bandwidth
Blocked By:               |   Blocking:
--------------------------+-------------------------------------------
Changes (by shaiton):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 You're right.
 We changed some. We always try to do as you suggested, but pictures are
 made from the design team and they love pixels. Sometime we just copy
 them..

 Please reopen if you think other pictures need to be optimized.

 Thanks,

-- 
Ticket URL: <https://fedorahosted.org/fedora-websites/ticket/155#comment:1>
fedora-websites <https://fedoraproject.org/wiki/Websites>
Fedora Website Team's Trac instance