USGS PRISM MICA classification
BREEZE GEO
Use the USGS library to classify the pixels in the images.
Parameters
Group
Group similar types of minerals with a predefined name and color
Default mineral group
Generalized mineral group
None
MICA File
Select up to 5 MICA mcf files
Pretreatments
In button-up applied order ⬆️ , meaning UV is applied first then Center and so on.
Savitzky-Golay
Derivative
SNV (Standard Normal Variate)
Logarithm
Center
UV (Unit Variance) scaling
For more on each type of pretreatment see: Pretreatments
Threshold
Minimum score value required for classification of a specific class
Rule images
Calculates each pixel based on each class and see how well they compare to each other. The lower the value the more accurate the pixel spectra are to the class spectrum from the MICA file.
✅ Apply the rule images to all the classes in the library.
⬜ Rule images are not applied.
Show majority class
Show majority class category in table
✅
⬜
Save all statistics
Default saving fit value. With all statistics depth and weighted fit depth will also be saved in measurement prediction file
✅
⬜
Smooth
Smooth prediction result using median filter kernel
None
No Smoothing prediction.
Low
Smoothing using median filter kernel with 5x5 pixel box
Medium
Smoothing using median filter kernel with 10x10 pixel box
High
Smoothing using median filter kernel with 15x15 pixel box
Output
Type
Depicts the classified pixels in the table view.
Depth
Depicts how certain the model is in its classification. Values are between (0 - 1).