public static int fnFIE_steger_filter_edges(
	FHANDLE hSrc,
	FHANDLE hDst,
	FHANDLE hDir,
	double dSigma,
	double dThresh,
	f_line_detect_mode line_mode,
	ref F_EDGE_PTR edges,
	ref int edge_num
)

Public Shared Function fnFIE_steger_filter_edges ( 
	hSrc As FHANDLE,
	hDst As FHANDLE,
	hDir As FHANDLE,
	dSigma As Double,
	dThresh As Double,
	line_mode As f_line_detect_mode,
	ByRef edges As F_EDGE_PTR,
	ByRef edge_num As Integer
) As Integer

//    $Revision: 1.1 $

using System;
using System.Collections.Generic;
using System.Text;
using fvalgcli;

namespace TC
{
    public partial class FIE
    {
        /// <summary>
        /// steger line/curve extraction filter.
        /// </summary>
        [FvPluginExecute]
        public void fnFIE_steger_filter_edges()
        {
            int status = (int)f_err.F_ERR_NONE;

            FHANDLE hsrc = FHANDLE.Zero;    // 処理画像.
            FHANDLE hdst = FHANDLE.Zero;    // 出力画像(線強度画像).
            FHANDLE hdir = FHANDLE.Zero;    // 出力画像(線角度画像).
            F_EDGE_PTR edges = IntPtr.Zero;
            int edge_num = 0;

            try
            {
                // 入力画像ファイルのロード.
                api.fnFIE_load_img_file(TestImageDir + "/testdata/gray_04.bmp", ref hsrc, f_color_img_type.F_COLOR_IMG_TYPE_UC8);

                // 入力画像の情報取得.
                int width = api.fnFIE_img_get_width(hsrc);
                int height = api.fnFIE_img_get_height(hsrc);
                int channels = api.fnFIE_img_get_channels(hsrc);

                // 出力画像の生成.
                hdst = api.fnFIE_img_root_alloc((int)f_imgtype.F_IMG_DOUBLE, channels, width, height);
                hdir = api.fnFIE_img_root_alloc((int)f_imgtype.F_IMG_S16, channels, width, height);

                // 処理の実行.
                status = api.fnFIE_steger_filter_edges(hsrc, hdst, hdir, 1.5, 1, f_line_detect_mode.F_RIDGE_MODE, ref edges, ref edge_num);

                // エラー判定.
                Assert.IsTrue(status == (int)f_err.F_ERR_NONE, "エラーが発生しました。({0})", (f_err)status);

                // 線強度画像の保存
                api.fnFIE_save_tiff(ResultDir + "/fnFIE_steger_filter_edges_dst.tiff", hdst, f_tiff_compression.F_TIFF_COMPRESSION_NONE, 0);
                // 線角度画像の保存
                api.fnFIE_save_tiff(ResultDir + "/fnFIE_steger_filter_edges_dir.tiff", hdir, f_tiff_compression.F_TIFF_COMPRESSION_NONE, 0);
            }
            finally
            {
                // オブジェクトの開放.
                hsrc.Dispose();
                hdst.Dispose();
                hdir.Dispose();
                edges.Dispose();
            }
        }
    }
}

'    $Revision: 1.1 $

Imports System.Collections.Generic
Imports System.Text
Imports fvalgcli

Public Partial Class FIE
    ''' <summary>
    ''' steger line/curve extraction filter.
    ''' </summary>
    <FvPluginExecute> _
    Public Sub fnFIE_steger_filter_edges()
        Dim status As Integer = CInt(f_err.F_ERR_NONE)

        Dim hsrc As FHANDLE = FHANDLE.Zero
        ' 処理画像.
        Dim hdst As FHANDLE = FHANDLE.Zero
        ' 出力画像(線強度画像).
        Dim hdir As FHANDLE = FHANDLE.Zero
        ' 出力画像(線角度画像).
        Dim edges As F_EDGE_PTR = IntPtr.Zero
        Dim edge_num As Integer = 0

        Try
            ' 入力画像ファイルのロード.
            api.fnFIE_load_img_file(TestImageDir & "/testdata/gray_04.bmp", hsrc, f_color_img_type.F_COLOR_IMG_TYPE_UC8)

            ' 入力画像の情報取得.
            Dim width As Integer = api.fnFIE_img_get_width(hsrc)
            Dim height As Integer = api.fnFIE_img_get_height(hsrc)
            Dim channels As Integer = api.fnFIE_img_get_channels(hsrc)

            ' 出力画像の生成.
            hdst = api.fnFIE_img_root_alloc(CInt(f_imgtype.F_IMG_DOUBLE), channels, width, height)
            hdir = api.fnFIE_img_root_alloc(CInt(f_imgtype.F_IMG_S16), channels, width, height)

            ' 処理の実行.
            status = api.fnFIE_steger_filter_edges(hsrc, hdst, hdir, 1.5, 1, f_line_detect_mode.F_RIDGE_MODE, _
                edges, edge_num)

            ' エラー判定.
            Assert.IsTrue(status = CInt(f_err.F_ERR_NONE), "エラーが発生しました。({0})", CType(status, f_err))

            ' 線強度画像の保存
            api.fnFIE_save_tiff(ResultDir & "/fnFIE_steger_filter_edges_dst.tiff", hdst, f_tiff_compression.F_TIFF_COMPRESSION_NONE, 0)
            ' 線角度画像の保存
            api.fnFIE_save_tiff(ResultDir & "/fnFIE_steger_filter_edges_dir.tiff", hdir, f_tiff_compression.F_TIFF_COMPRESSION_NONE, 0)
        Finally
            ' オブジェクトの開放.
            hsrc.Dispose()
            hdst.Dispose()
            hdir.Dispose()
            edges.Dispose()
        End Try
    End Sub
End Class