mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-30 23:49:05 +08:00
4c6c58e6ea
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@158 d0cd1f9f-072b-0410-8dd7-cf729c803f20
136 lines
5.3 KiB
C++
136 lines
5.3 KiB
C++
/**********************************************************************
|
|
* File: pitsync1.h (Formerly pitsync.h)
|
|
* Description: Code to find the optimum fixed pitch segmentation of some blobs.
|
|
* Author: Ray Smith
|
|
* Created: Thu Nov 19 11:48:05 GMT 1992
|
|
*
|
|
* (C) Copyright 1992, Hewlett-Packard Ltd.
|
|
** 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 PITSYNC1_H
|
|
#define PITSYNC1_H
|
|
|
|
#include "elst.h"
|
|
#include "clst.h"
|
|
#include "blobbox.h"
|
|
#include "varable.h"
|
|
#include "statistc.h"
|
|
#include "pithsync.h"
|
|
#include "notdll.h"
|
|
#include "notdll.h"
|
|
|
|
class FPSEGPT_LIST;
|
|
|
|
class FPSEGPT:public ELIST_LINK
|
|
{
|
|
public:
|
|
FPSEGPT() { //empty
|
|
}
|
|
FPSEGPT( //constructor
|
|
inT16 x); //position
|
|
FPSEGPT( //constructor
|
|
inT16 x, //position
|
|
BOOL8 faking, //faking this one
|
|
inT16 offset, //extra cost dist
|
|
inT16 region_index, //segment number
|
|
inT16 pitch, //proposed pitch
|
|
inT16 pitch_error, //allowed tolerance
|
|
FPSEGPT_LIST *prev_list); //previous segment
|
|
FPSEGPT(FPCUTPT *cutpt); //build from new type
|
|
|
|
inT32 position() { //acces func
|
|
return xpos;
|
|
}
|
|
double cost_function() {
|
|
return cost;
|
|
}
|
|
double squares() {
|
|
return sq_sum;
|
|
}
|
|
double sum() {
|
|
return mean_sum;
|
|
}
|
|
FPSEGPT *previous() {
|
|
return pred;
|
|
}
|
|
inT16 cheap_cuts() const { //no of cheap cuts
|
|
return mid_cuts;
|
|
}
|
|
|
|
//faked split point
|
|
NEWDELETE2 (FPSEGPT) BOOL8 faked;
|
|
BOOL8 terminal; //successful end
|
|
inT16 fake_count; //total fakes to here
|
|
|
|
private:
|
|
inT16 mid_cuts; //no of cheap cuts
|
|
inT32 xpos; //location
|
|
FPSEGPT *pred; //optimal previous
|
|
double mean_sum; //mean so far
|
|
double sq_sum; //summed distsances
|
|
double cost; //cost function
|
|
};
|
|
|
|
ELISTIZEH (FPSEGPT) CLISTIZEH (FPSEGPT_LIST)
|
|
extern
|
|
BOOL_VAR_H (pitsync_projection_fix, FALSE,
|
|
"Fix bug in projection profile");
|
|
extern
|
|
INT_VAR_H (pitsync_linear_version, 0, "Use new fast algorithm");
|
|
extern
|
|
double_VAR_H (pitsync_joined_edge, 0.75,
|
|
"Dist inside big blob for chopping");
|
|
extern
|
|
double_VAR_H (pitsync_offset_freecut_fraction, 0.25,
|
|
"Fraction of cut for free cuts");
|
|
extern
|
|
INT_VAR_H (pitsync_fake_depth, 1, "Max advance fake generation");
|
|
double check_pitch_sync( //find segmentation
|
|
BLOBNBOX_IT *blob_it, //blobs to do
|
|
inT16 blob_count, //no of blobs
|
|
inT16 pitch, //pitch estimate
|
|
inT16 pitch_error, //tolerance
|
|
STATS *projection, //vertical
|
|
FPSEGPT_LIST *seg_list //output list
|
|
);
|
|
void make_illegal_segment( //find segmentation
|
|
FPSEGPT_LIST *prev_list, //previous segments
|
|
TBOX blob_box, //bounding box
|
|
BLOBNBOX_IT blob_it, //iterator
|
|
inT16 region_index, //number of segment
|
|
inT16 pitch, //pitch estimate
|
|
inT16 pitch_error, //tolerance
|
|
FPSEGPT_LIST *seg_list //output list
|
|
);
|
|
inT16 vertical_torow_projection( //project whole row
|
|
TO_ROW *row, //row to do
|
|
STATS *projection //output
|
|
);
|
|
void vertical_blob_projection( //project outlines
|
|
PBLOB *blob, //blob to project
|
|
STATS *stats //output
|
|
);
|
|
void vertical_outline_projection( //project outlines
|
|
OUTLINE *outline, //outline to project
|
|
STATS *stats //output
|
|
);
|
|
void vertical_cblob_projection( //project outlines
|
|
C_BLOB *blob, //blob to project
|
|
STATS *stats //output
|
|
);
|
|
void vertical_coutline_projection( //project outlines
|
|
C_OUTLINE *outline, //outline to project
|
|
STATS *stats //output
|
|
);
|
|
#endif
|