Redux » History » Version 5
Jim Pulokas, 07/13/2011 10:45 AM
| 1 | 3 | Jim Pulokas | h1. redux |
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| 2 | 2 | Jim Pulokas | |
| 3 | 3 | Jim Pulokas | redux is a library for loading an image, doing some basic processing and generating a viewable image. |
| 4 | 1 | Jim Pulokas | |
| 5 | 3 | Jim Pulokas | !redux_basic_idea.png! |
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| 7 | 4 | Jim Pulokas | h2. Goals |
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| 9 | 1 | Jim Pulokas | * simple to use python library |
| 10 | * simple to use network daemon that can answer requests for an image and the pipeline of processing to do on it |
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| 11 | * simple to use command line client that uses either the network daemon or locally imported python library to do processing |
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| 12 | * complex behind-the-scenes result caching |
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| 14 | 4 | Jim Pulokas | h2. Potential uses |
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| 16 | 1 | Jim Pulokas | * a command line program like xv or imagemagick to view myami images and generate publication quality results |
| 17 | * preparing image for display in Leginon, including contrast adjustments, binning, power spectrum, etc |
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| 18 | * any functions in leginon/appion where you need to either bin or calculate power spectrum |
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| 19 | * preparing image for display on web pages. web server can contact redux server. this can replace php-mrc module which no longer compiles with php > 5.2 |
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| 20 | 4 | Jim Pulokas | |
| 21 | h2. Current design as of 5/12/2011 |
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| 22 | 3 | Jim Pulokas | |
| 23 | !redux_more_detail.png! |
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| 24 | 5 | Jim Pulokas | |
| 25 | h2. New Ideas as of 7/13/2011 |
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| 27 | Investigating "gstreamer":http://gstreamer.freedesktop.org as a framework on which to build redux. gstreamer allows plugins called "elements" to be connected together to form a pipeline or graph that does multimedia processing. Here is an example application built using the command line program "gst-launch": |
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| 28 | <pre>gst-launch filesrc location=example.png ! pngdec ! jpegenc ! filesink location=test.jpg</pre> |