Specifies the method used to binarize color and grayscale input images. Review the 'Binarized' diagnostic image when tuning this property. The objective is to generate an image where the lines to be removed
are clearly defined.
CombRemoval
Grooper.IP.LineDetection.CombDetectionType
A comb is line segment which is shorter than the minimum line length, but is connected to a perpendicular line at one or more ends.Can be one of the following values:
None: Comb removal is disabled.
Single: Combs with single connectivity will be removed. Single connectivity indicates that the comb connects to a perpendicular line on one end, as shown below:
│G│R│O│O│P│E│R│
└─┴─┴─┴─┴─┴─┴─┘
│PATIENT NAME: │ADMIT DATE:│
│John R. Smith │06/15/2017 │
└──────────────┴───────────┘
Double: Combs with double connectivity will be removed. Double connectivity indicates that the comb connects to a perpendicular line on boths ends, as shown below:
┌─┬─┬─┬─┬─┬─┬─┐
│G│R│O│O│P│E│R│
└─┴─┴─┴─┴─┴─┴─┘
┌──────────────┬───────────┐
│PATIENT NAME: │ADMIT DATE:│
│John R. Smith │06/15/2017 │
└──────────────┴───────────┘
All: All combs will be removed..
CommandTypeName
System.String
The type of IP command.
DropoutFontSize
System.String
Defines the largest font size to be dropped out during image preprocessing. An empty or zero value will disable font dropout. Review the "Preprocessed" diagnostic image when tuning this property. The objective is to
produce an image where as much text as possible has been removed from the image, without damaging any of the line or box structure.
HasReferenceProperties
System.Boolean
Returns true if the object has properties which reference Grooper Node objects.
IsEmpty
System.Boolean
Returns true if all properties with a ViewableAttribute are set to their default value.
IsWriteable
System.Boolean
Returns true if the object is writable, or false if it is not.
Level
Grooper.IP.LineDetection.HoughLevel
Defines the accuracy level of advanced line detection.Can be one of the following values:
Off: Advanced line detection is disabled.
Low: Low accuracy setting. Executes Hough transform at r = 0.25°, Θ = 1px.
Medium: Medium accuracy setting. Executes Hough transform at r = 0.25°, Θ = .5px.
High: High accuracy setting. Executes Hough transform at r = 0.25°, Θ = .25px.
LineTypes
Grooper.IP.LineDetection.LineOrientations
Specifies the orientation of lines which will be removed from the image. The Angle Tolerance property controls the allowed variance from true horizontal and vertical lines.Can be one of the following values:
Both: Both horizontal and vertical lines will be removed.
Horizontal: Only horizontal lines will be removed.
Vertical: Only vertical lines will be removed.
MaximumEdgeNoise
System.Double
The maximum amount of noise along either edge of a line.
MaximumSpeckSize
System.String
The maximum size of an artifact touching the edge of a line which should be considered a speck. Specks must have an aspect ratio less than or equal to 3. In the figure below, the solid black pixels outside the line (outlined in red) are artifacts that are
touching the line.
MaxLineGap
System.String
The maximum gap which can appear in a line.
MaxLineThickness
System.String
The maximum thickness for a line to be removed.
MinCombFill
System.Double
The minimum fill percentage of a rectangle which will be considered a comb. A perfect comb "│" is a rectangular shape with a fill percentage of 100%. While few combs found on scanned images will be perfect, most will have a high fill
percentage. Other shapes, such as ")" or "I", may fit the size requirements of a comb, but will have a significantly different fill percentage because they are not
rectangular in shape.
For single connected combs, the fill percentage must meet or exceed the value specified here. For double-connected combs, the fill percentage must only be ½ of this value.
MinCombLength
System.String
The minimum length of a line segment which will be considered a comb. This value must be less than the minimum line length.
MinCombWeight
System.Double
When a quiet zone is in use, defines how "clear" the quiet zone must be. In a region which includes the comb itself plus the quiet zone, the percentage of feature pixels belonging to the
comb must be equal to or greater than the value specified here. A value of 100% will require a completely clear quiet zone.
MinimumAspectRatio
System.Double
The minimum aspect ratio of any object to be considered a line. For example, with a ratio of 10, a horizontal line would have to have a ratio of at least 10 pixels wide to 1 pixel tall. For a vertical line, this is reversed
and the ratio must be 10 pixels tall to 1 pixel wide.
MinimumLineFill
System.Double
Defines the percentage of pixels along a line's path which must be black. This controls how "solid" a feature must be in order to be considered a line. A value of 100% will only detect solid black lines. A value of 0% will detect all lines which meet the minimum length and maximum gap requirements.
MinimumRunLength
System.String
Defines the sensitivity of straight line detection. Specifies the minimum length of a horizontal or vertical run of black pixels which will be considered part of a line
MinLineLength
Grooper.IP.UnitLineLength
The minimum length of lines to be detected and removed.
Owner
Grooper.ConnectedObject
Returns the node that owns the connected object, if any.
OwnerNode
Grooper.GrooperNode
Returns the node that owns the connected object, if any.
QuietZoneSize
System.String
For single-connected combs, specifies a region on either side of the comb which must be relatively clear of feature pixels.
◄──│──► ───┴───
The Minimum Weight property defines how "clear" this zone must be.
Designed to prevent skinny vertical characters from being mistaken for combs. For example,
a lower-case "j" printed with underline produces a feature closely resembling a comb:
adjustment
In such cases, the "j" can be distinguished from an actual comb by using a quiet zone to check the amount of whitespace on each side.
RemoveNegatedRegions
System.Boolean
Specifies whether negated (white on black) regions of the image will be removed prior to line detection. Negated regions can interfere with line detection, and should be removed from the image prior to line detection. If a Negative Region Removal
command is already being executed prior to this command in the IP Profile, then this property should be set to false to avoid duplicate processing. Otherwise,
this property should be set to true.
Root
Grooper.GrooperRoot
Returns the root node
SupportedFormats
System.String
The pixel formats supported by this command.
SupportedPixelFormats
System.Collections.Generic.IEnumerable(Of T)
Returns a list of supported pixel formats of images that can be processed by the IP Command.
TrimDistance
System.String
The distance outside of detected lines at which connected components will be trimmed. Review the diagnostic image 'Trim Mask' after making changes to this property. The trim mask includes all pixels
within a radius of Trim Distance from any detected line, and represents an absolute boundary for the edge of each line.
This property should be tuned so that lines are removed with minimal damage to objects which intersect the line.
Methods
Method Name
Description
Apply(Image As GrooperImage, DiagMode As Boolean) As IpCommandResult
Parameters
Image
Type: GrooperImage
DiagMode
Type: Boolean
ApplyAtalaCommand(cmd As ImageCommand, Image As GrooperImage) As AtalaIpResult
Parameters
cmd
Type: ImageCommand
Image
Type: GrooperImage
ApplyCommand(Image As GrooperImage) As IpCommandResult
Parameters
Image
Type: GrooperImage
ApplyImage(Image As GrooperImage) As GrooperImage
Parameters
Image
Type: GrooperImage
GetMask(BinImage As GrooperImage, OriginalImage As GrooperImage, Result As IpCommandResult) As GrooperImage
Parameters
BinImage
Type: GrooperImage
OriginalImage
Type: GrooperImage
Result
Type: IpCommandResult
GetProperties() As PropertyDescriptorCollection
GetReferences() As List(Of GrooperNode)
Returns a list of GrooperNode objects referenced in the properties of this object.
IsPropertyEnabled(PropertyName As String) As Nullable(Of Boolean)
Defines whether a property is currently enabled.
Parameters
PropertyName
Type: String
The name of the property to determine the enabled state for.
IsPropertyVisible(PropertyName As String) As Nullable(Of Boolean)
Defines whether a property is currently visible.
Parameters
PropertyName
Type: String
The name of the property to determine the visible state for.
IsType(Type As Type) As Boolean
Returns true if the object is of the type specified, or if it derives from the type specfied.
Parameters
Type
Type: Type
The type to check.
Serialize() As String
Serializes the object.
SetDatabase(Database As GrooperDb)
Sets the database connection of the object.
Parameters
Database
Type: GrooperDb
SetOwner(Owner As ConnectedObject, SkipInitialization As Boolean)
Sets the owner of the connected object with another object that implements the IConnected interface.
Parameters
Owner
Type: ConnectedObject
SkipInitialization
Type: Boolean
ToString() As String
Returns a string value representation of the connected object.
ValidateProperties() As ValidationErrorList
Validates the properties of the object, returning a list of validation errors.