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https://github.com/tesseract-ocr/tesseract.git
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75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
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/******************************************************************************
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** Filename: fxdefs.c
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** Purpose: Utility functions to be used by feature extractors.
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** Author: Dan Johnson
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** History: Sun Jan 21 15:29:02 1990, DSJ, Created.
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**
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** (c) Copyright Hewlett-Packard Company, 1988.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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******************************************************************************/
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#include "fxdefs.h"
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#include "featdefs.h"
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#include "mf.h"
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#include "outfeat.h"
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#include "picofeat.h"
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#include "normfeat.h"
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/**----------------------------------------------------------------------------
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Global Data Definitions and Declarations
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----------------------------------------------------------------------------**/
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/* flag to control learn mode vs. classify mode */
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int ExtractMode;
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// Definitions of extractors separated from feature definitions.
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DefineFeatureExt (MicroFeatureExt, ExtractMicros, InitMicroFXVars)
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DefineFeatureExt (PicoFeatExt, NULL, DefaultInitFXVars)
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DefineFeatureExt (CharNormExt, ExtractCharNormFeatures, DefaultInitFXVars)
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DefineFeatureExt (OutlineFeatExt, NULL, DefaultInitFXVars)
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FEATURE_EXT_STRUCT* ExtractorDefs[NUM_FEATURE_TYPES] = {
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&MicroFeatureExt,
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&PicoFeatExt,
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&OutlineFeatExt,
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&CharNormExt
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};
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/**----------------------------------------------------------------------------
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Public Code
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----------------------------------------------------------------------------**/
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/*---------------------------------------------------------------------------*/
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void SetupExtractors() {
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for (int i = 0; i < NUM_FEATURE_TYPES; ++i)
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ExtractorOf(i) = ExtractorDefs[i];
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}
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void GetLineStatsFromRow(TEXTROW *Row, LINE_STATS *LineStats) {
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/*
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** Parameters:
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** Row text row to get line statistics from
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** LineStats place to put line statistics
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** Globals: none
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** Operation: This routine copies the relavent fields from the
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** Row struct to the LineStats struct.
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** Return: none (results are returned in LineStats)
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** Exceptions: none
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** History: Mon Mar 11 10:38:43 1991, DSJ, Created.
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*/
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LineStats->Baseline = &(Row->baseline);
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LineStats->XHeightLine = &(Row->xheight);
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LineStats->xheight = Row->lineheight;
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LineStats->AscRise = Row->ascrise;
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LineStats->DescDrop = Row->descdrop;
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LineStats->TextRow = Row; /* kludge - only needed by fx for */
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/* fast matcher - remove later */
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} /* GetLineStatsFromRow */
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