Mobile/Gonzales: Difference between revisions

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Revision as of 18:02, 23 May 2014

257 bytes added , 23 May 2014

→‎Image Compression

Scleymans

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@@ Line 85: / Line 85: @@
 |}
+==== Sample ====
+The sample used for the tests below was made using images from 20 different webpages from the Alexa's top 200 most visited websites list.
+{| class="wikitable"
+|-
+! Format !! Number of images !! Total size (MB)
+|-
+| JPEG || 325 || 12
+|-
+| PNG || 817 || 14
+|-
+| GIF || 325 || 1.8
+|}
 ==== PNG Compression ====
-Tests are done using a set of PNG images from "real" most visited websites. The sample size is 3432kB.
+The PNG sample size is 12383KB.
 {| class="wikitable sortable"
@@ Line 94: / Line 108: @@
 ! Compression Method !! New sample size (kB) !! Average compression (%) !! Total time (s)
 |-
-| optipng -o 1 || 3069 || 11 || 22
+| optipng -o 1 || 11560 || 7 || 70
+|-
+| optipng -o 5 || 10940 || 12 || 481
 |-
-| optipng -o 7 || 2911 || 16 || 343
+| [http://pngquant.org/ pngquant] || 5169 || 59 || 69
 |-
-| [http://pngquant.org/ pngquant] || 1874 || 46 || 18
+| pngcrush || 10997 || 12 || 90
 |-
-| pngcrush || 3062 || 11 || 30
+| pngcrush + optipng -o 5 || 10280 || 17 || 541
 |-
-| pngcrush + optipng -o 5 || 2850 || 17 || 219
+| WebP (quality = 90) || 4741 || 62 || 47
 |-
-| WebP (quality = 90) || 1500 || 56 || 11
+| WebP (quality = 100) || 8321 || 33 || 48
 |-
 |}
@@ Line 110: / Line 126: @@
 ==== JPEG Compression ====
-The sample size is 841kB.
+The sample size is 10846kB.
-/* TODO: get a more relevant sample set */
 {| class="wikitable sortable"
@@ Line 118: / Line 132: @@
 ! Compression Method !! New sample size (kB) !! Average compression (%) !! Total time (s)
 |-
-| mozjpeg || 808 || 4 || 2
+| mozjpeg || 9663 || 11 || 53
 |-
-| mozjpeg (quality = 90) || 614 || 28 || -
+| mozjpeg (quality = 90) || 8571 || 21 || -
 |-
-| jpegoptim || 837 || 1 || 1.5
+| jpegoptim || 10497 || 4 || 39
 |-
-| WebP || 1167 || -38 || 1.8
+| WebP (quality = 100) || 17551 || -61 || 42
 |-
-| WebP (quality = 90) || 535 || 37 || 1.8
+| WebP (quality = 90) || 8316 || 24 || 40
 |-
 |}