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LinearBinaryPattern
Creates histogram and map of Linear Binary Patterns (with radius 1 and size 8) of provided image.
| Name | Type | Description | |
|---|---|---|---|
 |
inImage | Image | Mono-channel image. |
|
inRoi | Region* | Region of Interest. |
|
inPatternType | LinearBinaryPatternType | Type of LBP to produce. |
 |
outPatternHistogram | Histogram | Histogram of LBP codes found in inImage. |
|
outTextureImage | Image | LBP map of input image. |
Only the following inImage pixel formats are supported: 1xuint8
Description
The LPB histogram (treated as a 256 dimensional feature vector) is a texture visual descriptor useful for texture classification.
It is obtained by calculating a pattern for each pixel, and then producing a histogram from all these numbers.
The pattern is a 8-bit array (coded in uint8) with results of comparisons of the center pixel value to all its neighbours.
Following types of LPB can be calculated:
- Plain
- RotationInvariant - all patterns (and thus histogram bins) that can be obtained by binary shifts from each other are merged into one
- Uniform - non-uniform patterns (these containing more than two 01 or 10 transitions - eg. 00110010 has 4) are merged into one bin
- UniformRotationInvariant - apply both RotationInvariant and Uniform operations
More information can be found at https://en.wikipedia.org/wiki/Local_binary_patterns
Examples
Source image with following ROIs defined: |
|
LBP histograms calculated for top-left and top-right regions (different parts of fur) |
LBP histograms calculated for top-left region and bottom region (nose) |
Complexity Level
This filter is available on Basic Complexity Level.
