IG_gui_ip_unsharp_mask

This function shows the dialog that allows you to choose parameters and apply the Unsharp Mask transform.

Declaration:

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BOOL ACCUAPI IG_gui_ip_unsharp_mask_dlg ( HWND hWnd, LPAT_IGGUI_IP_UNSHARP_MASK lpIpUnsharpMaskData );

Arguments:

Name	Type	Description
hWnd	HWND	A handle of the parent window.
lpIpUnsharpMaskData	LPAT_IGGUI_IP_UNSHARP_MASK	A pointer to the AT_IGGUI_IP_UNSHARP_MASK structure.

Return Value:

If the user specifies parameters and clicks the OK button, the return value is non-zero. If the user cancels or closes the dialog box or an error occurs, the return value is zero.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++, except:
Indexed RGB with non-grayscale palette.

Sample:

Image Processing

Example:

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#include "IG_gui_common.h" AT_IGGUI_IP_UNSHARP_MASK IpUnsharpMask; IpUnsharpMask.cbSize = sizeof (IpUnsharpMask); IpUnsharpMask.hWnd = hWnd; IpUnsharpMask.hIGear = hIGear; IpUnsharpMask.uFlags \|= IG_IGGUI_IP_SETUP_EMPTY_RECT; IpUnsharpMask.dblRadius = 1.0; IpUnsharpMask.nAmount = 150; IpUnsharpMask.nThreshold = 10; IpUnsharpMask.nColorChannel = IG_COLOR_COMP_ALL; if (IG_gui_ip_unsharp_mask_dlg (hWnd, &IpUnsharpMask)) { InvalidateRect(hWnd, NULL, FALSE); UpdateWindow(hWnd); }

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#include "IG_gui_common.h"
AT_IGGUI_IP_UNSHARP_MASK IpUnsharpMask;
IpUnsharpMask.cbSize = sizeof (IpUnsharpMask);
IpUnsharpMask.hWnd = hWnd;
IpUnsharpMask.hIGear = hIGear;
IpUnsharpMask.uFlags |= IG_IGGUI_IP_SETUP_EMPTY_RECT;
IpUnsharpMask.dblRadius = 1.0;
IpUnsharpMask.nAmount = 150;
IpUnsharpMask.nThreshold = 10;
IpUnsharpMask.nColorChannel = IG_COLOR_COMP_ALL;
if (IG_gui_ip_unsharp_mask_dlg (hWnd, &IpUnsharpMask))
{
InvalidateRect(hWnd, NULL, FALSE);
        UpdateWindow(hWnd);
}

Remarks:

The Unsharp Mask transform is used for image sharpening and edge enhancement. The algorithm works by subtracting a smoothed version of the image ("unsharp") from the original image.