係数指定付き濃淡化
Namespace: fvalgcliAssembly: fvalgcli (in fvalgcli.dll) Version: 3.1.0.0 (3.1.0.11)
Syntax
C# |
---|
public static int fnFIE_img_rgb_to_gray(
FHANDLE hsrc,
FHANDLE hdst,
double coeff_r,
double coeff_g,
double coeff_b,
int mode
) |
Visual Basic |
---|
Public Shared Function fnFIE_img_rgb_to_gray (
hsrc As FHANDLE,
hdst As FHANDLE,
coeff_r As Double,
coeff_g As Double,
coeff_b As Double,
mode As Integer
) As Integer |
Parameters
- hsrc
- Type: fvalgcli..::..FHANDLE
入力画像 ( type: uc8, s16, us16, double, rgbq )
- hdst
- Type: fvalgcli..::..FHANDLE
出力画像 ( type: uc8, s16, us16, double )
- coeff_r
- Type: System..::..Double
R 成分変換係数 (既定値:0.299)
- coeff_g
- Type: System..::..Double
G 成分変換係数 (既定値:0.587)
- coeff_b
- Type: System..::..Double
B 成分変換係数 (既定値:0.114)
- mode
- Type: System..::..Int32
変換モード
- 0 : 正規化、及びスケーリングを行わない
- 1 : 正規化、及びスケーリングを行う
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_IMAGE | 画像オブジェクトの異常 |
F_ERR_INVALID_PARAM | パラメータ異常 |
F_ERR_CALC_IMPOSSIBLE | 計算が出来ない |
F_ERR_NO_LICENCE | ライセンスエラー |
Remarks
Examples
C# | Copy |
---|
using System;
using System.Collections.Generic;
using System.Text;
using fvalgcli;
namespace TC
{
public partial class FIE
{
[FvPluginExecute]
public void fnFIE_img_rgb_to_gray()
{
int status = (int)f_err.F_ERR_NONE;
FHANDLE hsrc = FHANDLE.Zero;
FHANDLE hdst = FHANDLE.Zero;
try
{
api.fnFIE_load_img_file(TestImageDir + "/testdata/test_color_extract.bmp", ref hsrc, f_color_img_type.F_COLOR_IMG_TYPE_UC8);
int width = api.fnFIE_img_get_width(hsrc);
int height = api.fnFIE_img_get_height(hsrc);
int channels = 1;
int type = api.fnFIE_img_get_type(hsrc);
hdst = api.fnFIE_img_root_alloc(type, channels, width, height);
status = api.fnFIE_img_rgb_to_gray(hsrc, hdst, 0.299, 0.587, 0.114, 0);
Assert.IsTrue(status == (int)f_err.F_ERR_NONE, "エラーが発生しました。({0})", (f_err)status);
api.fnFIE_save_png(ResultDir + "/fnFIE_img_rgb_to_gray.png", hdst, -1);
}
finally
{
hsrc.Dispose();
hdst.Dispose();
}
}
}
} |
Visual Basic | Copy |
---|
Imports System.Collections.Generic
Imports System.Text
Imports fvalgcli
Public Partial Class FIE
<FvPluginExecute> _
Public Sub fnFIE_img_rgb_to_gray()
Dim status As Integer = CInt(f_err.F_ERR_NONE)
Dim hsrc As FHANDLE = FHANDLE.Zero
Dim hdst As FHANDLE = FHANDLE.Zero
Try
api.fnFIE_load_img_file(TestImageDir & "/testdata/test_color_extract.bmp", hsrc, f_color_img_type.F_COLOR_IMG_TYPE_UC8)
Dim width As Integer = api.fnFIE_img_get_width(hsrc)
Dim height As Integer = api.fnFIE_img_get_height(hsrc)
Dim channels As Integer = 1
Dim type As Integer = api.fnFIE_img_get_type(hsrc)
hdst = api.fnFIE_img_root_alloc(type, channels, width, height)
status = api.fnFIE_img_rgb_to_gray(hsrc, hdst, 0.299, 0.587, 0.114, 0)
Assert.IsTrue(status = CInt(f_err.F_ERR_NONE), "エラーが発生しました。({0})", CType(status, f_err))
api.fnFIE_save_png(ResultDir & "/fnFIE_img_rgb_to_gray.png", hdst, -1)
Finally
hsrc.Dispose()
hdst.Dispose()
End Try
End Sub
End Class |
See Also