Tesseract  3.02
tesseract-ocr/classify/picofeat.h
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00001 /******************************************************************************
00002  **     Filename:    picofeat.h
00003  **     Purpose:     Definition of pico features.
00004  **     Author:      Dan Johnson
00005  **     History:     9/4/90, DSJ, Created.
00006  **
00007  **     (c) Copyright Hewlett-Packard Company, 1988.
00008  ** Licensed under the Apache License, Version 2.0 (the "License");
00009  ** you may not use this file except in compliance with the License.
00010  ** You may obtain a copy of the License at
00011  ** http://www.apache.org/licenses/LICENSE-2.0
00012  ** Unless required by applicable law or agreed to in writing, software
00013  ** distributed under the License is distributed on an "AS IS" BASIS,
00014  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00015  ** See the License for the specific language governing permissions and
00016  ** limitations under the License.
00017  ******************************************************************************/
00018 #ifndef   PICOFEAT_H
00019 #define   PICOFEAT_H
00020 
00024 #include "ocrfeatures.h"
00025 #include "params.h"
00026 
00027 // Enum for the order/type of params in IntFeatDesc.
00028 enum IntParams {
00029   IntX,   // x-position (0-255).
00030   IntY,   // y-position (0-255).
00031   IntDir  // Direction (0-255, circular).
00032 };
00033 
00034 // Enum for the order/type of params in GeoFeatDesc.
00035 enum GeoParams {
00036   GeoBottom,   // Bounding box bottom in baseline space (0-255).
00037   GeoTop,      // Bounding box top in baseline space (0-255).
00038   GeoWidth,    // Bounding box width in baseline space (0-255).
00039 
00040   GeoCount     // Number of geo features.
00041 };
00042 
00043 typedef enum
00044 { PicoFeatY, PicoFeatDir, PicoFeatX }
00045 PICO_FEAT_PARAM_NAME;
00046 
00047 #define MAX_PICO_FEATURES (1000)
00048 
00049 /*---------------------------------------------------------------------------
00050           Variables
00051 ----------------------------------------------------------------------------*/
00052 
00053 extern double_VAR_H(classify_pico_feature_length, 0.05, "Pico Feature Length");
00054 
00055 
00059 #define GetPicoFeatureLength()  (PicoFeatureLength)
00060 
00061 FEATURE_SET ExtractIntCNFeatures(TBLOB *Blob, const DENORM& denorm);
00062 FEATURE_SET ExtractIntGeoFeatures(TBLOB *Blob, const DENORM& denorm);
00063 
00067 extern FLOAT32 PicoFeatureLength;
00068 #endif