thm.deplaid

Description

Removes plaid from multiband THEMIS spectral cubes.

Located in "thm" module.

Arguments and Return Values

Accepts geometrically projected and rectified radiance cubes of at most 10 bands

Returns a cleaned cube of the same size

Usage

Syntax: thm.deplaid(data = VAL [, ignore = VAL] [, tmask_max = VAL] [, tmask_min = VAL] [, filt_len = INT] [, b10 = INT])

data:       geometrically projected and rectified radiance cube of at most 10 bands
ignore:     the value of non-data pixels -                         default is -32768
tmask_max:  max threshold used to create the temperature mask -    default is 1.15
tmask_min:  min threshold used to create the temperature mask -    default is 0.80
filt_len:   length of filter used in plaid removal -               default is 150
b10:        the band (1 - 10) in the data that is THEMIS band 10 - default is 10

TROUBLESHOOTING
You should designate b10 when NOT feeding deplaid 10 band data, b10 = 0 for no band-10 data.
You can return the blackmask/temperature mask by using "dump=1".
If you get brightness smear, then bring the tmask_max and/or min closer to 1.0.
If you still see long-wavelength plaid, such as in cold images, increase filt_len.
If the image looks washed-out check your null value.

Examples

b = thm.deplaid(a)

b = thm.deplaid(data=a,ignore=-32768,tmask_max=1.25,tmask_min=.85,filt_len=200,b10=3)

b = thm.deplaid(a,0,tmask_max=1.21)

b = thm.deplaid(a,0,1.10,.90,180,8)

Images