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git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@860 d0cd1f9f-072b-0410-8dd7-cf729c803f20
123 lines
4.7 KiB
C++
123 lines
4.7 KiB
C++
/**********************************************************************
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* File: pitsync1.h (Formerly pitsync.h)
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* Description: Code to find the optimum fixed pitch segmentation of some blobs.
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* Author: Ray Smith
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* Created: Thu Nov 19 11:48:05 GMT 1992
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*
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* (C) Copyright 1992, Hewlett-Packard Ltd.
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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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**********************************************************************/
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#ifndef PITSYNC1_H
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#define PITSYNC1_H
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#include "elst.h"
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#include "clst.h"
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#include "blobbox.h"
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#include "params.h"
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#include "statistc.h"
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#include "pithsync.h"
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class FPSEGPT_LIST;
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class FPSEGPT:public ELIST_LINK
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{
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public:
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FPSEGPT() { //empty
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}
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FPSEGPT( //constructor
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inT16 x); //position
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FPSEGPT( //constructor
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inT16 x, //position
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BOOL8 faking, //faking this one
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inT16 offset, //extra cost dist
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inT16 region_index, //segment number
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inT16 pitch, //proposed pitch
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inT16 pitch_error, //allowed tolerance
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FPSEGPT_LIST *prev_list); //previous segment
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FPSEGPT(FPCUTPT *cutpt); //build from new type
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inT32 position() { //acces func
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return xpos;
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}
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double cost_function() {
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return cost;
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}
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double squares() {
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return sq_sum;
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}
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double sum() {
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return mean_sum;
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}
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FPSEGPT *previous() {
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return pred;
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}
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inT16 cheap_cuts() const { //no of cheap cuts
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return mid_cuts;
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}
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//faked split point
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BOOL8 faked;
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BOOL8 terminal; //successful end
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inT16 fake_count; //total fakes to here
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private:
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inT16 mid_cuts; //no of cheap cuts
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inT32 xpos; //location
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FPSEGPT *pred; //optimal previous
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double mean_sum; //mean so far
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double sq_sum; //summed distsances
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double cost; //cost function
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};
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ELISTIZEH (FPSEGPT) CLISTIZEH (FPSEGPT_LIST)
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extern
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INT_VAR_H (pitsync_linear_version, 0, "Use new fast algorithm");
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extern
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double_VAR_H (pitsync_joined_edge, 0.75,
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"Dist inside big blob for chopping");
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extern
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double_VAR_H (pitsync_offset_freecut_fraction, 0.25,
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"Fraction of cut for free cuts");
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extern
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INT_VAR_H (pitsync_fake_depth, 1, "Max advance fake generation");
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double check_pitch_sync( //find segmentation
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BLOBNBOX_IT *blob_it, //blobs to do
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inT16 blob_count, //no of blobs
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inT16 pitch, //pitch estimate
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inT16 pitch_error, //tolerance
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STATS *projection, //vertical
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FPSEGPT_LIST *seg_list //output list
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);
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void make_illegal_segment( //find segmentation
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FPSEGPT_LIST *prev_list, //previous segments
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TBOX blob_box, //bounding box
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BLOBNBOX_IT blob_it, //iterator
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inT16 region_index, //number of segment
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inT16 pitch, //pitch estimate
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inT16 pitch_error, //tolerance
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FPSEGPT_LIST *seg_list //output list
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);
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inT16 vertical_torow_projection( //project whole row
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TO_ROW *row, //row to do
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STATS *projection //output
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);
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void vertical_cblob_projection( //project outlines
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C_BLOB *blob, //blob to project
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STATS *stats //output
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);
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void vertical_coutline_projection( //project outlines
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C_OUTLINE *outline, //outline to project
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STATS *stats //output
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);
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#endif
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