Description
Syntax
| Visual Basic |
|---|
Public Sub DocumentDilate( _ ByVal Amount As Integer, _ ByVal Direction As enumEnhancementDirection _ ) |
Parameters
- Amount
The distance, in pixels, to extend the black pixels.
Range: 1 - 500
Default: 1
- Direction
Value Description EnhancementDirectionAll Enhance all directions. EnhancementDirectionDown Enhance down. EnhancementDirectionLeft Enhance left. EnhancementDirectionLeftDown Enhance left and down. EnhancementDirectionLeftDownBoth Enhance left, down, and diagonally left down. EnhancementDirectionLeftUp Enhance left and up. EnhancementDirectionLeftUpBoth Enhance left, up, and diagonally left up. EnhancementDirectionRight Enhance right. EnhancementDirectionRightDown Enhance right and down. EnhancementDirectionRightDownBoth Enhance right, down, and diagonally right down. EnhancementDirectionRightUp Enhance right and up. EnhancementDirectionRightUpBoth Enhance right, up, and diagonally right up. EnhancementDirectionUp Enhance up. The direction to apply the dilation. Black pixels are expanded in this direction. Typically, this is set to a single direction, a pair of directions, or all directions.
Default: EnhancementDirectionAll
Remarks
This method validates the input, examines the pixels, expands the black pixels, and returns results from the detection and correction process.
The enumEnhancementDirection contains parameters that control the dilate process. If no parameters are provided, the current image has its black pixels expanded by one in all directions.
Outputs
- ImagXpress validates the input, examines the pixels, expands the black pixels, and returns results from the detection and correction process. The current content may be modified. If the operation fails, the current image is un-changed.
- IPImageWasModified is set to true if the image was modified, false if the image was not modified.
Using DocumentDilate
1. Load a 1 bit image from a file or stream input.
2. Call DocumentDilate.
3. The current image is dilated.
Note: Available in Professional Edition.