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Image Thresholding
Select a filter from the list below.
| Icon | Name | Description / Applications | Modules | |
|---|---|---|---|---|
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SelectThresholdValue | 
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Selects best threshold value using the image histogram. Usually used before a thresholding filter when the image brightness is variable. Use with care. |
FoundationBasic |
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ThresholdImage | 
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Transforms each pixel value to maximum or minimum depending on whether they belong to the specified range. Image binarization when the illumination is constant and uniform. |
FoundationLite |
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ThresholdImage_Color |
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Transforms each pixel value to maximum or minimum depending on the distance from a given color. Color analysis with a given reference color. |
FoundationPro |
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ThresholdImage_Dynamic |
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Thresholds an image relatively to some value calculated in a local rectangular neighbourhood. Image binarization when the illumination is uneven. |
FoundationLite |
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ThresholdImage_HSx |
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Transforms each pixel value to minimum or maximum depending on whether it belongs to specified region in the HSV, HSL or HSI color space. Color analysis. |
FoundationLite |
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ThresholdImage_Hysteresis |
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Thresholds an image with a hysteresis, i.e. with a lower threshold for neighboring pixels. |
FoundationBasic |
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ThresholdImage_Multirange | 
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Transforms each pixel value to maximum or minimum depending on whether they belong to the specified range. Image binarization when the illumination is constant and uniform. |
FoundationPro |
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ThresholdImage_Relative |
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Thresholds an image with a different threshold value for each pixel (inBaseImage(x, y) + inValue). |
FoundationBasic |
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ThresholdImage_RGB |
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Transforms each pixel value to minimum or maximum depending on whether it belongs to the specified range for each individual pixel component. Multi-channel thresholding. |
FoundationLite |
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ThresholdToRegion |
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Creates a region containing image pixels with values within the specified range. Extraction of a region of objects that can be defined by a salient brightness. |
FoundationBasic |
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ThresholdToRegion_Color |
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Creates a region containing image pixels with values close to the given color. Color analysis with a given reference color. |
FoundationPro |
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ThresholdToRegion_Dynamic |
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Thresholds an image relatively to the average pixel value in a local rectangular neighborhood. Useful in case of uneven illumination. |
FoundationBasic |
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ThresholdToRegion_HSx |
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Creates a region containing image pixels which belongs to specified region in HSV, HSL or HSI space. Extraction of a region characterized with a specific color. |
FoundationBasic |
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ThresholdToRegion_Relative |
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Thresholds an image with a different threshold value for each pixel (inBaseImage(x, y) + inValue). |
FoundationBasic |
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ThresholdToRegion_Relative_DarkBright |
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Thresholds an image using two relative thresholds and produces two regions (Dark and Bright) in a single image pass. This filter can replace two instances of ThresholdToRegion_Relative which may slightly improve performance. |
FoundationBasic |
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ThresholdToRegion_RGB |
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Creates a region containing image pixels which belongs to the specified range for each individual pixel component. Multi-channel thresholding. |
FoundationBasic |
