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
);
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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 Professional, 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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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.