private static void CountObjects(MIL_ID MilDisplay, MIL_ID MilGraphicsList, MIL_ID MilGraphicsContext, MIL_ID MilBinImage, MIL_ID MilBlobFeatureList, MIL_ID MilBlobResult)
{
MIL_INT NumberOfBlobs = 0;
MIL_INT NumberOfPrimitives = 0;
MIL_INT Index;
string TextLabel;
// Disable the display update for better performance.
MIL.MdispControl(MilDisplay, MIL.M_UPDATE, MIL.M_DISABLE);
// Remove all elements from the graphics list, except the rectangle
// region primitive at index 0.
MIL.MgraInquireList(MilGraphicsList, MIL.M_LIST, MIL.M_DEFAULT, MIL.M_NUMBER_OF_GRAPHICS, ref NumberOfPrimitives);
for (Index = NumberOfPrimitives - 1; Index > 0; Index--)
{
MIL.MgraControlList(MilGraphicsList, MIL.M_GRAPHIC_INDEX(Index), MIL.M_DEFAULT, MIL.M_DELETE, MIL.M_DEFAULT);
}
// Set the input region. The blob analysis will be done
// from the (filled) interactive rectangle.
MIL.MbufSetRegion(MilBinImage, MilGraphicsList, MIL.M_DEFAULT, MIL.M_RASTERIZE + MIL.M_FILL_REGION, MIL.M_DEFAULT);
// Calculate the blobs and their features.
MIL.MblobCalculate(MilBinImage, MIL.M_NULL, MilBlobFeatureList, MilBlobResult);
// Get the total number of blobs.
MIL.MblobGetNumber(MilBlobResult, ref NumberOfBlobs);
// Set the input units to display unit for the count annotations.
MIL.MgraControl(MilGraphicsContext, MIL.M_INPUT_UNITS, MIL.M_DISPLAY);
TextLabel = string.Format(" Number of blobs found: {0:00} ", NumberOfBlobs);
MIL.MgraColor(MilGraphicsContext, MIL.M_COLOR_WHITE);
MIL.MgraText(MilGraphicsContext, MilGraphicsList, 10, 10, TextLabel);
// Restore the input units to pixel units for result annotations.
MIL.MgraControl(MilGraphicsContext, MIL.M_INPUT_UNITS, MIL.M_PIXEL);
// Draw blob center of gravity annotation.
MIL.MgraColor(MilGraphicsContext, MIL.M_COLOR_RED);
MIL.MblobDraw(MilGraphicsContext, MilBlobResult, MilGraphicsList, MIL.M_DRAW_CENTER_OF_GRAVITY, MIL.M_INCLUDED_BLOBS, MIL.M_DEFAULT);
// Draw blob bounding box annotations.
MIL.MgraColor(MilGraphicsContext, MIL.M_COLOR_GREEN);
MIL.MblobDraw(MilGraphicsContext, MilBlobResult, MilGraphicsList, MIL.M_DRAW_BOX, MIL.M_INCLUDED_BLOBS, MIL.M_DEFAULT);
// Enable the display to update the drawings.
MIL.MdispControl(MilDisplay, MIL.M_UPDATE, MIL.M_ENABLE);
}