 |
| Before: |
637kB |
| After: |
181kB |
|
|
1998 Project Objective:
to demonstrate reduced downloading-time for a business website, achieved
by image compression. Times can be compared by fetching an original
copy and a restructured copy of the same web-info from the
same server.
View before (May '98 copy)
and
after (quicker)
| Image Comparison Chart |
| Original Copy | Size (kB) |
|
Restructured |
Compressed |
Renamed | Size (kB) |
| 1.gif | 9.77 |
Made transparent |
Yes |
jw.gif | 3.44 |
| 2.gif | 3.8 |
Made transparent |
Yes |
jh.gif | 2.79 |
| a1.jpg | 35.4 |
|
Yes |
n-atzp1.jpg | 11.30 |
| access1.gif | 1.29 |
|
Yes |
b-access.gif | 0.55 |
| atp.gif | 23.3 |
|
Yes |
n-atp2.gif | 11.70 |
| atz.jpg | 24.9 |
Converted to .gif |
Yes |
n-atz2.gif | 7.75 |
| c7c.JPG | 16.8 |
|
Yes |
n-c7c.jpg | 4.80 |
| c7r.JPG | 19.2 |
|
Yes |
n-c7r.jpg | 5.71 |
| cta_sign1.gif | 1.66 |
|
No |
(same) | 1.66 |
| cta_sign2.gif | 2.33 |
|
No |
(same) | 2.33 |
| email1.gif | 1.04 |
|
Yes |
b-email.gif | 0.34 |
| f1.JPG | 11.0 |
|
Yes |
n-f1.jpg | 2.84 |
| f2.JPG | 11.4 |
|
Yes |
n-f2.jpg | 3.64 |
| f4.jpg | 26.2 |
|
Yes |
n-f4.jpg | 7.00 |
| f5.JPG | 13.5 |
|
Yes |
n-f5.jpg | 4.47 |
| f6.JPG | 35.7 |
|
Yes |
n-f6.jpg | 8.47 |
| f8_lcd.jpg | 38.0 |
|
Yes |
n-f8_lcd.jpg | 9.27 |
| fence02.gif | 10.6 |
Slightly cleaned |
Yes |
n-fence4.gif | 9.61 |
| guard1.gif | 1.16 |
|
Yes |
b-guard.gif | 0.44 |
| jf008a.JPG | 35.8 |
|
Yes |
n-jf008a.JPG | 8.97 |
| jf104a.gif | 34.6 |
|
Yes |
n-jf104a.gif | 12.90 |
| logo_m.gif | 6.29 |
Made transparent |
Yes |
jlogo_m.gif | 4.85 |
| logo_m1.gif | 3.62 |
Made transparent |
Yes |
jlogo_m1.gif | 2.87 |
| news1.gif | 1.03 |
|
Yes |
b-news.gif | 0.35 |
| other1.gif | 1.03 |
|
Yes |
b-other.gif | 0.35 |
| phone1.gif | 1.4 |
|
Yes |
b-phone.gif | 0.63 |
| Podl1_1.GIF |
122.0 |
Resized |
Yes |
podback2.gif | 3.07 |
| Yes |
strip3.gif | 1.18 |
| sbc1.gif | 1.5 |
|
Yes |
b-sbc.gif | 0.70 |
| sw1.gif | 1.14 |
|
Yes |
b-sw.gif | 0.42 |
| time1.gif | 1.31 |
|
Yes |
b-time.gif | 0.57 |
| wire1.gif | 2.54 |
Resized |
Yes |
b-wire.gif | 0.63 |
| wire2.gif | 96.8 |
Cleaned+Converted |
Yes |
n-wire3.jpg | 7.89 |
| yes.gif | 0.85 |
Redrawn |
Yes |
tick.gif | 0.20 |
| Original Total: |
595 kB |
New Total: |
143 kB |
Outcome: The original 637kB site
(13 pages = 42kB + 595kB of images) was reduced to 181kB
(14 pages = 38kB + 143kB of images) by
described means without visible loss of
data, enabling a 70% cut in user download-time.