ThresholdType
Thresholding types are used in image thresholding functions.
- THRESH_BINARY
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Applies a fixed-level threshold to each pixel. If the pixel value is greater than the threshold, it is set to the maximum value; otherwise, it is set to 0.
- THRESH_BINARY_INV
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Applies a fixed-level threshold to each pixel. If the pixel value is greater than the threshold, it is set to 0; otherwise, it is set to the maximum value.
- THRESH_OTSU
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Automatically calculates the optimal threshold value by using Otsu’s method and applies a binary threshold.
- THRESH_TOZERO
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Applies a fixed-level threshold to each pixel. If the pixel value is greater than the threshold, it remains unchanged; otherwise, it is set to 0.
- THRESH_TOZERO_INV
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Applies a fixed-level threshold to each pixel. If the pixel value is greater than the threshold, it is set to 0; otherwise, it remains unchanged.
- THRESH_TRIANGLE
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Automatically calculates the optimal threshold value by using the triangle algorithm and applies a binary threshold.
- THRESH_TRUNC
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Applies a fixed-level threshold to each pixel. If the pixel value is greater than the threshold, it is set to the threshold value; otherwise, it remains unchanged.