Rough OF addon that uses turbo-jpeg lib to read and write jpegs. 2-3 times faster than OF's freeImage based jpeg en/decoder
Forks
Forks pushed to more recently than armadillu/ofxTurboJpeg itself, plus any admin-confirmed fork with commits of its own — worth checking if you're hitting issues with the original.
Branches ahead of main
These branches have commits not yet on main — could be unmerged fixes or work in progress worth a look.
README
About
Rough OF addon that uses turbo-jpeg lib to read and write jpegs. 2-4 times faster than OF's freeImge based jpeg en/decoder.You will need to install libjpeg-turbo (http://sourceforge.net/projects/libjpeg-turbo/) and its dylibs or freemImage's internal version of libjpeg will conflict with the one required by libjpeg-turbo, throwing a "Wrong JPEG library version: library is 80, caller expects 62" error. Alternatively you can just place the "libturbojpeg.dylib" by the binary and it should work. Only tested on OSX Lion.
ofxTurboJpeg turbo; //load jpeg ofImage image = turbo.load("loadTest.jpg"); //save jpeg turbo.save(image, "save turbo.jpg", 75);

Compiling
Visual studio 2015 (instructions by tgfrerer and mattfelsen) turboJPEG libraries for vs2015 compiled straight off the sources using the following recipe: download turbojpeg source v1.4.1 download nasm (net assembler) add
nasm.exe to your %PATH% environment variable this depends on where you installed nasm, but should be something like C:\Users\YOUR_USERNAME\AppData\Local\nasm edit in Control Panel > System > Advanced system settings > Environment variables > Path use cmake-gui.exe to build visual studio project files open and compile libjpeg-turbo.sln in Debug and Release modes - find
turbojpeg-static.libinbuild\[Debug|Release]and copy into the proper locations in the ofxTurboJpeg addon
ofxAddons