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git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@860 d0cd1f9f-072b-0410-8dd7-cf729c803f20
134 lines
5.3 KiB
C++
134 lines
5.3 KiB
C++
/**********************************************************************
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* File: pithsync.h (Formerly pitsync2.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 PITHSYNC_H
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#define PITHSYNC_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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class FPSEGPT_LIST;
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class FPCUTPT
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{
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public:
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FPCUTPT() { //empty
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}
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void setup ( //start of cut
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FPCUTPT cutpts[], //predecessors
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inT16 array_origin, //start coord
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STATS * projection, //occupation
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inT16 zero_count, //official zero
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inT16 pitch, //proposed pitch
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inT16 x, //position
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inT16 offset); //dist to gap
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void assign ( //evaluate cut
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FPCUTPT cutpts[], //predecessors
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inT16 array_origin, //start coord
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inT16 x, //position
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BOOL8 faking, //faking this one
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BOOL8 mid_cut, //doing free cut
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inT16 offset, //extra cost dist
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STATS * projection, //occupation
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float projection_scale, //scaling
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inT16 zero_count, //official zero
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inT16 pitch, //proposed pitch
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inT16 pitch_error); //allowed tolerance
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void assign_cheap ( //evaluate cut
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FPCUTPT cutpts[], //predecessors
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inT16 array_origin, //start coord
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inT16 x, //position
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BOOL8 faking, //faking this one
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BOOL8 mid_cut, //doing free cut
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inT16 offset, //extra cost dist
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STATS * projection, //occupation
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float projection_scale, //scaling
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inT16 zero_count, //official zero
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inT16 pitch, //proposed pitch
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inT16 pitch_error); //allowed tolerance
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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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FPCUTPT *previous() {
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return pred;
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}
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inT16 cheap_cuts() const { //no of mi cuts
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return mid_cuts;
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}
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inT16 index() const {
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return region_index;
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}
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BOOL8 faked; //faked split point
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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 region_index; //cut serial number
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inT16 mid_cuts; //no of cheap cuts
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inT32 xpos; //location
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uinT32 back_balance; //proj backwards
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uinT32 fwd_balance; //proj forwards
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FPCUTPT *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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double check_pitch_sync2( //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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inT16 projection_left, //edges //scale factor
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inT16 projection_right,
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float projection_scale,
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inT16 &occupation_count, //no of occupied cells
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FPSEGPT_LIST *seg_list, //output list
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inT16 start, //start of good range
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inT16 end //end of good range
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);
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double check_pitch_sync3( //find segmentation
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inT16 projection_left, //edges //to be considered 0
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inT16 projection_right,
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inT16 zero_count,
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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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float projection_scale, //scale factor
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inT16 &occupation_count, //no of occupied cells
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FPSEGPT_LIST *seg_list, //output list
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inT16 start, //start of good range
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inT16 end //end of good range
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);
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#endif
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