I was running Google Page Speed on some sites and it recommended using a compressed feed.png file in /misc. It's only a 34 byte difference, but I don't see a difference between the current and the compressed version it generated. Then I also ran pngcrush on it using -brute. It found another 3 bytes to remove.

In the grand scheme of efforts like Google Speed, this kind of change is visually the same, but can save a couple bits off of millions of downloads across the internet.

In summary

  • Current feed icon: 764 bytes
  • Google's compressed version: 730 bytes
  • pngcrush version: 727 bytes
CommentFileSizeAuthor
#2 smushit_feed_crushed.png674 bytessivaji_ganesh_jojodae
google compressed feed icon at 730 bytes730 bytesdeekayen
pngcrush(ed) feed icon at 727 bytes727 bytesdeekayen

Comments

Bojhan’s picture

Bojhan commented
Status: Needs review » Reviewed & tested by the community

I like these pixels. Going to mark this RTBC - unless someone can knock off some more bytes.

sivaji_ganesh_jojodae’s picture

sivaji_ganesh_jojodae commented
StatusFileSize
new smushit_feed_crushed.png674 bytes

Yahoo's smush.it can still reduce the image size to 7.29 % or 106 bytes from the size of your image. check it out http://developer.yahoo.com/yslow/smushit/ . Attached is a compressed image from smush.it

deekayen’s picture

deekayen commented

#2 smushit looks lighter in color than the original - doesn't appear to be visually equivalent. pngcrush(ed) feed icon at 727 bytes is still my vote.

Bojhan’s picture

Bojhan commented

Bojhan puts on his glasses. I do not really see the diffrence, heh.

sivaji_ganesh_jojodae’s picture

sivaji_ganesh_jojodae commented

+1 for #4. One more thought, if this issue really matters we should do the yahoo smushit compression on "Powered by Drupal" block images (powered-blue-80x15.png in misc directory) as well, though it is used only in drupal lover blogs/websites.

deekayen’s picture

deekayen commented

I'll swap my vote to #4. I did some color sampling by pixel on about half the image and they were all the same. Drupal image is a separate issue. I'm going to wait 'n see what the commiters think about this image shrinking idea before doing others.

dries’s picture

dries commented
Status: Reviewed & tested by the community » Fixed

Committed smushit_feed_crushed.png (674 bytes) to CVS HEAD as feed.png. Thanks!

Status: Fixed » Closed (fixed)

Automatically closed -- issue fixed for 2 weeks with no activity.