Description This function will morphologically open the binary image. The function works for only 1 bit per pixel images. Morphological opening of a binary image is defined as the erosion of that image followed by the dilation of the eroded image. The opening filter operation will reduce small outward bumps and small narrow openings within the object.
Examples
Syntax RetVal = [BiFilter.]BinaryOpening hDib Mask Mheight Mwidth MPx MPy BackGrndisBlack iShowProgress hWnd
Returns RetVal Long The handle of new filtered DIB, 0 if an error occurred, or –1 if the BIFilter.dll does not installed.
Remarks hDIB Long Handle of the image to filter.
Mask short* This parameter specifies the structuring function used by the filtering.
Mheight short Height of structuring matrix.
Mwidth short Width of structuring matrix.
MPx short X coordinate of structuring matrix origin.
MPy short Y coordinate of structuring matrix origin.
BackGrndisBlack BOOL Specifies the color of BackGround.
iShowProgress short This parameter specifies the displaying of the progressbar and the preview dialog.
Available values:
DISPLAY_NONE (0) – The progressbar and the preview dialog will not display before filtering.
DISPLAY_PROGRESS (1) – The progressbar will display during filtering procedure.
DISPLAY_DIALOG (2) – The preview dialog will display before filtering. This dialog shows the part of the image before and after filtering.
DISPLAY_BOTH (3) – The progressbar and the preview dialog will display.
IMPORTANT: The preview dialog will only display, if there is BIDlgs32.dll installed.
hWnd Long Handler of the parent window.
See Also