/******************************************************************************
 ** Filename: mfx.h
 ** Purpose:  Definition of micro-feature extraction routines
 ** Author:   Dan Johnson
 **
 ** (c) Copyright Hewlett-Packard Company, 1988.
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 ** http://www.apache.org/licenses/LICENSE-2.0
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 ******************************************************************************/

#ifndef MFX_H
#define MFX_H

#include "mfdefs.h"
#include "params.h"

namespace tesseract {

class DENORM;
struct TBLOB;

/*----------------------------------------------------------------------------
          Variables
----------------------------------------------------------------------------**/

/* old numbers corresponded to 10.0 degrees and 80.0 degrees */
extern double_VAR_H(classify_min_slope, 0.414213562,
                    "Slope below which lines are called horizontal");
extern double_VAR_H(classify_max_slope, 2.414213562,
                    "Slope above which lines are called vertical");

/*----------------------------------------------------------------------------
          Public Function Prototypes
----------------------------------------------------------------------------**/
MICROFEATURES BlobMicroFeatures(TBLOB* Blob, const DENORM& cn_denorm);

} // namespace tesseract

#endif
