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Description

uStructSize

Size of this structure in bytes, for versioning. Use the sizeof() macro to calculate this value.

uSensitivity

Threshold value that determines the segment's type. Possible values are between 1 and 100. This is a control parameter used by the MRC engine to determine whether a certain segment should be considered as text, grayscale or an image. Higher values mean more segments are considered as text. Lower values mean more segments are considered as images.

uCombineFlags

Flag that indicates how segments will be combined. Possible values are:

Value

Meaning

COMBINE_FORCESIMILAR

[0x01] Always combine similar segments.

COMBINE_TRY

[0x02] Use the uCombineFactor value to determine similarity, and combine similar segments.

For the COMBINE_FORCESIMILAR value, similar means either identical or one of the following:

SEGTYPE_TEXT_1BIT_BW, SEGTYPE_TEXT_1BIT_COLOR or SEGTYPE_TEXT_2BIT_COLOR

SEGTYPE_TEXT_1BIT_COLOR or SEGTYPE_TEXT_2BIT_COLOR

SEGTYPE_GRAYSCALE_2BIT or SEGTYPE_GRAYSCALE_8BIT

SEGTYPE_GRAYSCALE_8BIT or SEGTYPE_PICTURE

uCombineFactor

A percentage value that represents the acceptable difference between the two segments being combined. This is valid only when uCombineFlags is COMBINE_TRY. Possible values are between 0 and 100. A value of 0 indicates that only segments that are an exact match can be combined. A value of 100 indicates that any two segments of the same type can be combined. Large values cause very different segments to be joined, which causes considerable quality loss.

uImageType

Value that indicates the image type. Possible values are:

Value

Meaning

IMAGE_SCANNED

[0x00] The image is a scanned image. It will be cleaned before segmentation.

IMAGE_COMPUTERGENERATED

[0x01] The image is computer generated. It will not be cleaned before segmentation.