Oodle Lossless Image

We have released Oodle Lossless Image Compression (aka OLI) v1.0

OLI is built on the blazing fast Oodle Data Compression engine, with a new very efficient image specific front end. OLI has a very simple native API, and it also has drop in look-alike APIs to replace stb_image or libpng, so it's very easy to integrate.

OLI gets much more compression than PNG. Its compression ratio is similar to higher compression codecs like webp-ll or FLIF. The big advantage of OLI is its blazing fast decode speed. OLI decodes way faster than any of the competition (3-10X faster), so you can compress big images smaller and load them faster.

(OLI is mostly by Jon Olick who did an awesome job on it)

OLI is currently for full color lossless images only. It's not for 3d game textures, it doesn't do BCn GPU compressed textures, it doesn't do things like half-float normal maps. It's for 24 bit RGB and 32 bit RGBA images, the kind of things you would have used PNG for before. OLI currently has only limited support for low color images (eg. palettized, 1-bit, and gray scale images). It's early days for OLI still and that support will get better, particularly if we hear from customers who need it.

For more about OLI visit the RAD Game Tools web site.

Image sizes on my "good" test set, smallest size for each image in bold :

	oli	webpll	pngcrush	png
4069138464_193981e0e2_o	3140944	3319222	4019282	4025911
9xkFD	2524927	2772626	3850985	3856541
A-Girl-With-Kind-Eyes	1212598	1307518	1568931	1620105
Beach_Hurricane_WaLp_TW2011	1970283	1997532	2543245	2606013
Beach_Starfish_and_Conch_Shell_Wp_TW	2266789	2299242	2591019	2701580
CliffSideA01_cm0001	3475407	3340540	4302971	4309175
CliffSideA03_cm0001	3626390	3560460	4697715	4704495
Girl_in_white	1253577	1313662	1726569	1729053
IMG_0060	2324810	2601634	3767787	3773211
IMG_0152	2166388	2389052	3668094	3673386
IMG_0155	1526228	1613594	2369898	2373318
IMG_0195	1998851	2115548	2910248	2914448
IMG_0339	1815852	2021904	3153675	3158211
IMG_0341	1196634	1267144	1865148	1867836
LOVE1	1170354	1217124	1598967	1601271
Lily+Allen+smile	1156702	1291656	1850890	1853554
PDI_1200	921293	959710	1260621	1262433
POMSep2007	1061705	1066320	1520546	1522742
Portal2Win	2992069	2904416	3695920	3701248
Spring_Beauty	1749534	1788812	2041309	2118280
Sunset_Rocky_Beach_Walp_TW	2700270	2665954	3137206	3192653
ainokura_bibble	817631	817516	1085462	1087022
artificial	721090	578668	845572	846796
big_building	3772059	3795954	4569456	4579407
big_tree	3476811	3466330	3747685	3753085
bmw	1408411	1429148	1790859	1793439
bridge	1401722	1400592	1535838	1538094
c77b75083b34	2516018	2657536	3818229	3823737
cathedral	1914743	1926612	2212063	2215255
church-in-the-prairie	1955457	1984848	2973585	2977869
cool-orb	379704	326258	492951	493671
deer	4753833	4454234	4757131	4763983
flower_foveon	1701007	1672546	2194479	2213494
hdr	1588182	1610458	1942456	2011759
highclass_by_DivineError_lossless	591236	588602	848270	849494
leaves_iso_200	2537504	2613286	3120814	3125314
moses	2137994	2183616	3220571	3225215
mysoup	2473925	2717346	3631056	3636300
nails2	2181876	2300032	3228688	3233344
nightshot_iso_100	2023458	1948254	2293315	2397815
phoenix	110389	59800	83692	131474
pulchra2.1	2421925	2536570	3482309	3487337
record_only	789644	790842	1211780	1282677
school-shoot-moodboard-number-1	1587878	1638888	2199389	2202557
space-desktop	561563	545412	724571	725615
spider_web	2119921	2203508	2603659	2715256
windmill_evsm	1470104	1487660	2090287	2093311
yahoo	1999722	1700342	2710221	2849650
total	91665412	93248528	121555414	122618434

oli is oli_enc --super
webpll is cwebp -lossless -z 9
pngcrush is default options
png is made by bmp2png

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Oodle is an SDK for high performance lossless data compression. For more about Oodle, or licensing inquiries, visit the RAD Game Tools web site. This is my personal blog where I post supplemental material about Oodle.