Neighbor Image Filter Tool - Settings Tab
Operation
Defines the image enhancement technique that will be applied to the region. The result of the image enhancement technique will automatically update within the region.
| Operation | Description |
|---|---|
| Bot Hat | Filters out everything except dark features smaller than the Filter Size; outputs an image that displays dark features as bright pixels on a dark background. |
| Close | Filters out dark features smaller than the Filter Size; outputs an image with a slightly increased overall brightness level. |
| Dilate | Increases bright features and shrinks dark features; outputs an image with larger areas of light pixels. This filter is useful for removing dark spots or specks. |
| Edge Magnitude | Filters dark and light features; outputs an image where edges are represented as light pixels. This operation accounts for diagonally oriented edges, and is slower than the "Gradient Full" Operation. |
| Erode | Increases dark features and shrinks bright features; outputs an image larger areas of dark pixels. This filter is useful for removing light spots or specks. |
| Fill Dark Holes | Dark pixels surrounded by light pixels are converted to light pixels; outputs an image where dark holes are filled. |
| Fill Light Holes | Light pixels surrounded by dark pixels are converted to dark pixels; outputs an image where light holes are filled. |
| Gradient Vertical | Filters vertical edge features; outputs an image where vertically oriented edges are represented by light pixels. |
| Gradient Horizontal | Filters horizontal edge features; outputs an image where horizontally oriented edges are represented by light pixels. |
| Gradient Full | Filters vertical and horizontal edge features; outputs an image where vertically and horizontally oriented edges are represented by light pixels. This operation does not account for diagonally oriented edges, but is faster than the "Edge Magnitude" Operation. |
| High Pass | Filters edge features and suppresses other features; outputs an image where edges are enhanced relative to areas with a more consistent grayscale gradient. |
| Low Pass (default) | Filters edge features and blurs the edge with other features; outputs an image where edges are "smoothed" or blurred. |
| Open | Filters out light features smaller than the Filter Size; outputs an image with a slightly decreased overall brightness level. |
| Top Hat | Filters out everything except light features smaller than the Filter Size; outputs an image that displays light features as bright pixels on a dark background. |
Filter Rows
Defines the size of the image processing neighborhood (1–25; default = 3) in the horizontal direction.
Filter Columns
Defines the size of the image processing neighborhood (1–25; default = 3) in the vertical direction.