Identifies image conversion modes to be applied for conversions from grayscale or 24-bit color image sources.
Syntax
Members
Member | Value | Description |
AUTO | 0 | This has an effect on grayscale or 24-bit color images: a B/W image is created in Engine's memory. An automatic adaptive thresholding algorithm is applied for the binarization of the image. Use ImGearOCRPreprocessingSettings.ReductionBrightness property to fine tune the threshold calculation. |
GLOBAL | 3 | This has an effect on grayscale or 24-bit color images: a bitonal image is created
internally. An automatic thresholding algorithm with a page-level global threshold value is
applied for the binarization of the image. |
NO | 2 | There is no conversion while loading the image. The image is loaded without any conversion
(i.e. a color image retains its color attributes). |
SET | 1 | This has an effect on grayscale or 24-bit color images: a bitonal image is created internally. Thresholding with a user defined threshold value, set by ImGearOCRPreprocessingSettings.ReductionThreshold property. |
Inheritance Hierarchy
See Also