dematch: Match a list of density values to exposure values
Package: dtoi
Usage
dematch database
Parameters
- database
- Database containing density list, probably from spotlist.
- wedge = "", filter = "", emulsion = ""
- Information used to retrieve log exposure values from wedgefile.
- wedgefile = "noao$lib/hdwedge.dat"
- Name of file containing wedge intensity information.
- nskip = 0
- Number of faint spots skipped, used as an offset into the list of log exposure values.
- verbose = yes
- Print the log exposure information to STDOUT as well as to database.
Description
Task dematch matches density values to log exposure values. A database of density values is input, as well as information needed to retrieve log exposure values from a reference file. The two sources of information are matched, and the matching log exposure values are added as a record in the database.
Parameter nskip tells how many faint spots were not included in the density database. This information is used to align the density, exposure values. It doesn't matter if the densities are listed in a monotonically increasing or decreasing order, as long as no spots were omitted between the first and last measured.
Examples
Match densities in db1 to log exposure values for wedge#117 with a IIIAJ emulsion and a GG385 filter.
cl> dematch db1 wedge=117 filt=gg385 emulsion=IIIAJ
See also
spotlist, hdfit, hdtoi