virtual L_INT LBitmap::EdgeDetectEffect(uLevel, uThreshold, uFlags)
Performs edge detection on the image.
Level value used to determine the brightness of the edges. Standard value is 50. Range between 1 and 100. Big values will produce bright edges.
Threshold value used to determine which pixels are going to be filtered. If the difference determined for a pixel is less than this value, the pixel is set to 0. If the difference is greater, the filter will be applied to the pixel. The valid ranges are:
Flag that indicates the type of edge to generate. Possible values are:
|EDGE_SOFT|| Generate softer (smoother) edges.|
|EDGE_SOLID|| Generate rougher edges.|
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
This function detects the edges in a bitmap and then replaces the values of edges by new values calculated according to the uFlags.
This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
To update a status bar or detect a user interrupt during execution of this function, refer to LBase::EnableStatusCallback.
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
L_INT LBitmap__EdgeDetectEffectExample(LBitmap *pLeadBitmap)
/* Apply find edges effect on the image*/
return pLeadBitmap->EdgeDetectEffect(50, 0, EDGE_SOFT);
Medical Web Viewer .NET
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