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uScope Navigator (Filter Manager) Flatten Background Process
uScope Navigator (Filter Manager)

Information in this article applies to:

  • uScope Navigator (All Versions)

Article ID: NFL1045 — Created: 5 May 2017 — Reviewed: 14 Jul 2018

Question

What does the flatten background process do?

Answer

The flatten background process analyzes all the images in a tile set for the brightest pixels. It uses this information to build an adjustment image that is applied to each image to flatten the background portion of each image.

This process is especially useful for removing small illumination gradient effects that, while not apparent on any individual image, are visible when viewing a complete tile set or deep zoom image.

This process works better for large image sets (more than 100 images). Smaller image sets may show signs of artifacts.

Before Flatten Background
Before Flatten Background
After Flatten Background
After Flatten Background

Note
You can further improve the effects of Flatten Background processing by applying image processing filters to the whole slide image. For example, applying a median filter (to remove noise) followed by a sharpen filter (to enhance edge definition).

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