Metadata Stored in the ''info'' Folder
The info folder is a replacement for the BDB-based EMAN2DB folder in the project directory. All information is stored in human-readable and editable JSON files with a .js extension.
For each micrograph in the project a basename is assigned, to avoid confusion as the data goes from raw micrograph to particles, etc. That is, a file named micrographs/jj1234.mrc would use the basename jj1234. particles/jj1234.hdf would use the same basename.
ctf_parm.js
This file stores the CTF parameters for all images in the project as EMAN2CTF objects, keyed by basename. CTF objects are stored in .js files in a human-readable form as a dictionary, so individual values can be easily read and, if necessary, edited.
quality.js
This file stores user-assigned quality values per-micrograph. The key is the basename of the image file. Quality values run from 0-9 and may be used in any way the user prefers. They have no absolute meaning to any of the processing software, though there are places where higher will be assumed to indicate better images by whatever standard.