DetectAreaWithThreshold Method

Description:

Detects an area of pixels using a specified starting location within the image and a threshold. As the threshold is increased, the detected area will accept greater variation in pixel color and become larger. The detected area is saved as the ROI of the page.

Syntax:

Sub DetectAreaWithThreshold(Page As IGPage, XPos As Long, YPos
As Long, Threshold As Double)

Parameters:

Name	Description
Page	Reference to IGPage Object on which the detection is performed.
XPos	X coordinate of starting point from which to search outward.
YPos	Y coordinate of starting point from which to search outward.
Threshold	Area threshold (in the range from 0 to 1.0).

Return Value:

None

Bits Per Pixel:

All except indexed

Sample:

Image Processing and Effects