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Filter Manager uScope Navigator Filters
Filter Manager

Information in this article applies to:

  • uScope Navigator V4.0 and Later
  • uScope Navigator V4.5 and Later
  • uScope Navigator V4.5.1 and Later

Article ID: NFL2323 — Created: 3 Sep 2020 — Reviewed: 1 Oct 2020

Summary

The Filter Manager in uScope Navigator lets you create filter sequences that can be applied to:

  • Overview Images (images captured by the overview camera)
  • Objective Images (images captured by the objective camera)
  • Whole Scan Images (images created by stitching scan fields together)

Details

Filters included in a filter sequence are applied to the source image in order. For example, if the filter sequence is composed of the following filters:

  1. Flat-Field Correction
  2. Brightness
  3. Contrast

Flat-field correction is applied to the image first, followed by brightness adjustment, and finally contrast adjustment.

Benefits of programmed filter sequences is that they can be named & saved and they are repeatable.

Note
Long sequences of filters can take a long time to process. Convolutions, such as Gaussian Blur and Gaussian Sharpen, take an exceptionally long time depending on how they are configured.

Filters

The following filters are supported for the various filter sequence types:

FilterOverview
Camera
Objective
Camera
Whole Scan
Image
Bilateral Smoothingyes
Bluryesyesyes
Brightnessyesyesyes
Color Correction File (BIN)1yesyesyes
Color Correction File (3DL)2yesyesyes
Color Look-up Tableyesyesyes
Conservative Smoothingyes
Contrastyesyesyes
Contrast Expand (Process)yes
Flat-Field Correctionyesyes
Gammayesyesyes
Gaussian Bluryes
Gaussian Sharpenyes
Grayscale3yesyesyes
Histogram Equalizationyesyesyes
Level Clippingyesyesyes
Look-Up Tableyesyesyes
Medianyesyesyes
RGB Filter4yesyesyes
Sharpenyesyesyes
1. Named "Color Correction File" in uScope Navigator v4.5.
2. "Color Correction File (3DL)" added in uScope Navigator v4.5.1.
3. "Greyscale" added in uScope Navigator v4.5.
4. Named "Color Correction" in uScope Navigator v4.3 and earlier.

Note
We recommend you use a filter sequence with Flat-Field Correction for the Overview Camera and Objective Camera.

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