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).