/// <summary>
/// 画像回転
/// </summary>
/// <param name="orgImg"></param>
/// <returns></returns>
public static Bitmap RotateImage(Bitmap orgImg, int angle)
{
IDocumentSDKComponent docSdk = DocumentSDKFactory.GetDocumentSDK();
Bitmap targetImg = orgImg.Clone(new Rectangle(0, 0, orgImg.Width, orgImg.Height), orgImg.PixelFormat);
using (Image chgimg = docSdk.RotateImage(targetImg, angle))
{
return((Bitmap)chgimg.Clone());
}
}
/// <summary>
/// ノイズ除去
/// </summary>
/// <param name="orgImg"></param>
/// <returns></returns>
public static Bitmap EraseNoise(Bitmap orgImg)
{
IDocumentSDKComponent docSdk = DocumentSDKFactory.GetDocumentSDK();
Bitmap targetImg = orgImg.Clone(new Rectangle(0, 0, orgImg.Width, orgImg.Height), System.Drawing.Imaging.PixelFormat.Format1bppIndexed);
// ノイズ除去処理
DocumentSDKArea area = new DocumentSDKArea()
{
xs = 0,
ys = 0,
xe = targetImg.Width - 1,
ye = targetImg.Height - 1
};
using (Image chgimg = docSdk.EraseNoise(targetImg, area, NoiseEnv.ToDocumentSDKEnshParam()))
{
return((Bitmap)chgimg.Clone());
}
}
/// <summary>
/// 傾き補正処理
/// </summary>
/// <param name="orgImg"></param>
/// <returns></returns>
private Bitmap ModifyImage(Bitmap orgImg)
{
Counter counter = new Counter(SetSubTimeCount);
IDocumentSDKComponent docSdk = DocumentSDKFactory.GetDocumentSDK();
Bitmap TargetImg = CloneIMage(orgImg);
double?angle = docSdk.GetAngle(TargetImg);
if (angle.HasValue)
{
// SDK用引数の準備
DocumentSDKInterface.DocumentSDKSkewParam param = new DocumentSDKInterface.DocumentSDKSkewParam()
{
det_max = DocumentSDKInterface.DocumentSDKDefinition.SKEW_DET_MAX_DEFAULT,
det_mode = DocumentSDKInterface.DocumentSDKDetMode.SKEW_DET_MODE_DEFAULT,
correct_mode = DocumentSDKInterface.DocumentSDKCorrectMode.SKEW_COR_MODE_DEFAULT,
expand_mode = DocumentSDKInterface.DocumentSDKExpandMode.SKEW_EXPAND_MODE_DEFAULT,
};
counter.Start("傾き角度:" + angle.Value.ToString("#.#"));
Image resultImg = docSdk.ModifyImage(TargetImg, angle.Value, param);
counter.End();
return((Bitmap)resultImg.Clone());
}
return(orgImg);
}
/// <summary>
/// OMR認識処理
/// </summary>
/// <param name="itemImage">項目画像</param>
/// <param name="recogItem">認識対象情報</param>
/// <returns>OMR認識結果</returns>
public DocumentSDKOmrResult executeOmr(Image itemImage, DocumentSDKCheckType markType, Rectangle markArea, Image masterImg, Rectangle masterRect)
{
IDocumentSDKComponent documentSDK = DocumentSDKFactory.GetDocumentSDK();
FileStream stream = null;
Image masterImage = null;
List <DocumentSDKArea> areaList = new List <DocumentSDKArea>();
List <DocumentSDKArea> masterAreaList = null;
try
{
// OMRパラメーターの設定
DocumentSDKOmrParam param = new DocumentSDKOmrParam()
{
check_num = DocumentSDKDefinition.OMR_CN_UNKNOWN,
check_type = markType,
threshold = SByte.Parse("50"),
area_type = DocumentSDKAreaType.OMR_AT_SOLID,
around_area = DocumentSDKAroundArea.OMR_AA_UNKNOWN,
check_size_x = DocumentSDKDefinition.OMR_CS_UNKNOWN,
check_size_y = DocumentSDKDefinition.OMR_CS_UNKNOWN,
};
// OMR領域を設定（文字領域を抽出され場合、OCRの文字領域を使用する）
DocumentSDKArea area = new DocumentSDKArea()
{
xs = markArea.Left,
ys = markArea.Top,
xe = markArea.Left + markArea.Width - 1,
ye = markArea.Top + markArea.Height - 1,
};
areaList.Add(area);
if (markType == DocumentSDKCheckType.OMR_CT_UNKNOWN)
{
masterImage = masterImg;
masterAreaList = new List <DocumentSDKArea>();
DocumentSDKArea masterArea = new DocumentSDKArea()
{
xs = masterRect.X,
ys = masterRect.Y,
xe = masterRect.X + masterRect.Width,
ye = masterRect.Y + markArea.Height,
};
masterAreaList.Add(masterArea);
}
// OMR処理の実行
DocumentSDKOmrResult result = documentSDK.ExecuteOmr(itemImage, areaList, masterImage, masterAreaList, param);
return(result);
}
finally
{
// ファイルストリームの破棄
if (stream != null)
{
stream.Dispose();
}
// マスター画像の破棄
if (masterImage != null)
{
masterImage.Dispose();
}
}
}