特徴量の取得（勾配方向付きエッジ）

Namespace: fvalgcli
Assembly: fvalgcli (in fvalgcli.dll) Version: 3.1.0.0 (3.1.0.11)

Syntax

C#
public static int fnFIE_fpm_feature_get_edges(
	FHANDLE hfeature,
	F_DEDGE_PTR pedges
)
Visual Basic
Public Shared Function fnFIE_fpm_feature_get_edges ( 
	hfeature As FHANDLE,
	pedges As F_DEDGE_PTR
) As Integer

Parameters

hfeature
Type: fvalgcli..::..FHANDLE
FPM特徴量オブジェクト
pedges
Type: fvalgcli..::..F_DEDGE_PTR
取得した特徴量データ 予め fnFIE_fpm_feature_get_num() によって特徴量の数を取得し、必要な領域を確保する必要があります。

Return Value

Type: Int32
以下のエラーコードを返します。

エラーコード：
f_err内容
F_ERR_NONE正常終了
F_ERR_INVALID_OBJECT引数オブジェクトの種別が異常
F_ERR_INVALID_PARAM 引数異常
F_ERR_NO_LICENCEライセンスエラー、または未初期化エラー

Remarks

Examples

C# Copy imageCopy
//    $Revision: 1.1 $

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

namespace TC
{
    public partial class FIE
    {
        /// <summary>
        /// 特徴量の取得(勾配方向付きエッジ)
        /// </summary>
        /// <param name="hFeature"></param>
        public void fnFIE_fpm_feature_get_edges(FHANDLE hFeature)
        {
            F_DEDGE_PTR edges = IntPtr.Zero;

            try
            {
                // 特徴量数の取得.
                int num = 0;
                fnFIE_fpm_feature_get_num(hFeature, ref num);

                // 特徴量の取得.
                edges = F_DEDGE_PTR.alloc(num);
                int status = api.fnFIE_fpm_feature_get_edges(hFeature, edges);
                Assert.IsTrue(status == (int)f_err.F_ERR_NONE, "fnFIE_fpm_feature_get_edges: エラーが発生しました。({0})", (f_err)status);
                Console.WriteLine("fnFIE_fpm_feature_get_edges");
                for (int i = 0; i < num; i++)
                    Console.WriteLine("edge[{0}]=({1},{2},{3},{4})", i, edges[i].x, edges[i].y, edges[i].q, edges[i].mag);
            }
            finally
            {
                edges.Dispose();
            }
        }
    }
}

Visual Basic Copy imageCopy
'    $Revision: 1.1 $

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

Public Partial Class FIE
    ''' <summary>
    ''' 特徴量の取得(勾配方向付きエッジ)
    ''' </summary>
    ''' <param name="hFeature"></param>
    Public Sub fnFIE_fpm_feature_get_edges(hFeature As FHANDLE)
        Dim edges As F_DEDGE_PTR = IntPtr.Zero

        Try
            ' 特徴量数の取得.
            Dim num As Integer = 0
            fnFIE_fpm_feature_get_num(hFeature, num)

            ' 特徴量の取得.
            edges = F_DEDGE_PTR.alloc(num)
            Dim status As Integer = api.fnFIE_fpm_feature_get_edges(hFeature, edges)
            Assert.IsTrue(status = CInt(f_err.F_ERR_NONE), "fnFIE_fpm_feature_get_edges: エラーが発生しました。({0})", CType(status, f_err))
            Console.WriteLine("fnFIE_fpm_feature_get_edges")
            For i As Integer = 0 To num - 1
                Console.WriteLine("edge[{0}]=({1},{2},{3},{4})", i, edges(i).x, edges(i).y, edges(i).q, edges(i).mag)
            Next
        Finally
            edges.Dispose()
        End Try
    End Sub
End Class

See Also