SharpenEx Method

Description

Sharpens the current image by applying a high pass 3 x 3 convolution filter selected by the user.

Syntax

Visual Basic
Public Sub SharpenEx( _ ByVal IPSharpenI As Integer, _ ByVal IPSharpenFilter As enumSharpenFilter _ )

Parameters

IPSharpenI

The sharpening intensity.

Valid values are 1 through 10.

Higher intensities result in a sharper image.

IPSharpenFilter

Value	Description
SharpenFilter1	Sharpen filter 1. Matrix: (0 -1 0 -1 5 -1 0 -1 0) / 1
SharpenFilter2	Sharpen filter 2. Matrix: (-1 -1 -1 -1 9 -1 -1 -1 -1) / 6
SharpenFilter3	Sharpen filter 3. Matrix: (1 -2 1 -2 5 -2 1 -2 1) / 1

Value

Description

SharpenFilter1

Sharpen filter 1.

Matrix:

(0 -1 0

-1 5 -1

0 -1 0) / 1

SharpenFilter2

Sharpen filter 2.

Matrix:

(-1 -1 -1

-1 9 -1

-1 -1 -1) / 6

SharpenFilter3

Sharpen filter 3.

Matrix:

(1 -2 1

-2 5 -2

1 -2 1) / 1

An enumSharpenFilter enumeration value.

Remarks

Sharpen filters are provided to help contrast the edges within an image. Several filters of each kind are provided giving a choice for correction depending on the severity of correction needed.