Using Redux to serve images on myamiweb¶

Installation¶

1. Follow Web_Server_Installation but ignore warning on not using php 5.3
2. Install redux prerequisites as found in its README file
3. Install myami-redux branch of myami on the webserver machine. Redux needs write permission at its installation location to write fftw wisdom file.

sudo easy_install fs

Configurations:¶

1. Assign redux server in myamiweb
   

   define('SERVER_HOST',"your_hostname")
   

1. Using Redux cache
   • At myamiweb/config.php
     

     define('USE_REDUX_CACHE',true)
     

   • Turn it on or off in redux/pipeline.py
   • Input the desired disk_cache_path, disk_cache_size, and mem_cache_size in the next few lines
   • Create the disk_cache_path before running redux if cache will be used
     

     mkdir /tmp/redux
     chmod 777 /tmp/redux
     

Test Installation¶

1. Using Redux to do simple input output:
   

   cd /your_myami_download/redux/bin
   redux --filename=test.jpg --oformat=PNG > test.png
   

Using redux server with myamiweb¶

1. start redux server. (reduxd is in executable path if installed)
   

   reduxd
   

2. test by accessing "test dataset" in myamiweb/viewerxml.php
3. test by accessing an image in myamiweb/imageviewer.php

run at boot¶

sudo cp -v myami/redux/init.d/reduxd /etc/init.d/
sudo service reduxd start

Test server¶

redux --server_host=localhost \
 --filename=myami/redux/gst/example.png \
 --oformat=JPEG --shape=32,32 > test.jpg

identify test.jpg

result

test.jpg JPEG 32x32 32x32+0+0 8-bit DirectClass 1.03kb