mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-29 03:48:10 +08:00
c4f4840fbe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@163 d0cd1f9f-072b-0410-8dd7-cf729c803f20
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/**********************************************************************
|
|
* File: genblob.cpp (Formerly gblob.c)
|
|
* Description: Generic Blob processing routines
|
|
* Author: Phil Cheatle
|
|
* Created: Mon Nov 25 10:53:26 GMT 1991
|
|
*
|
|
* (C) Copyright 1991, 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.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#include "mfcpch.h"
|
|
#include "stepblob.h"
|
|
#include "polyblob.h"
|
|
#include "genblob.h"
|
|
|
|
/**********************************************************************
|
|
* blob_comparator()
|
|
*
|
|
* Blob comparator used to sort a blob list so that blobs are in increasing
|
|
* order of left edge.
|
|
**********************************************************************/
|
|
|
|
int blob_comparator( //sort blobs
|
|
const void *blob1p, //ptr to ptr to blob1
|
|
const void *blob2p //ptr to ptr to blob2
|
|
) {
|
|
PBLOB *blob1 = *(PBLOB **) blob1p;
|
|
PBLOB *blob2 = *(PBLOB **) blob2p;
|
|
|
|
return blob1->bounding_box ().left () - blob2->bounding_box ().left ();
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* c_blob_comparator()
|
|
*
|
|
* Blob comparator used to sort a blob list so that blobs are in increasing
|
|
* order of left edge.
|
|
**********************************************************************/
|
|
|
|
int c_blob_comparator( //sort blobs
|
|
const void *blob1p, //ptr to ptr to blob1
|
|
const void *blob2p //ptr to ptr to blob2
|
|
) {
|
|
C_BLOB *blob1 = *(C_BLOB **) blob1p;
|
|
C_BLOB *blob2 = *(C_BLOB **) blob2p;
|
|
|
|
return blob1->bounding_box ().left () - blob2->bounding_box ().left ();
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* gblob_bounding_box()
|
|
*
|
|
* Return the bounding box of a generic blob.
|
|
**********************************************************************/
|
|
|
|
TBOX gblob_bounding_box( //Get bounding box
|
|
PBLOB *blob, //generic blob
|
|
BOOL8 polygonal //is blob polygonal?
|
|
) {
|
|
if (polygonal)
|
|
return blob->bounding_box ();
|
|
else
|
|
return ((C_BLOB *) blob)->bounding_box ();
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* gblob_sort_list()
|
|
*
|
|
* Sort a generic blob list into order of bounding box left edge
|
|
**********************************************************************/
|
|
|
|
void gblob_sort_list( //Sort a gblob list
|
|
PBLOB_LIST *blob_list, //generic blob list
|
|
BOOL8 polygonal //is list polygonal?
|
|
) {
|
|
PBLOB_IT b_it;
|
|
C_BLOB_IT c_it;
|
|
|
|
if (polygonal) {
|
|
b_it.set_to_list (blob_list);
|
|
b_it.sort (blob_comparator);
|
|
}
|
|
else {
|
|
c_it.set_to_list ((C_BLOB_LIST *) blob_list);
|
|
c_it.sort (c_blob_comparator);
|
|
}
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* gblob_out_list()
|
|
*
|
|
* Return the generic outline list of a generic blob.
|
|
**********************************************************************/
|
|
|
|
OUTLINE_LIST *gblob_out_list( //Get outline list
|
|
PBLOB *blob, //generic blob
|
|
BOOL8 polygonal //is blob polygonal?
|
|
) {
|
|
if (polygonal)
|
|
return blob->out_list ();
|
|
else
|
|
return (OUTLINE_LIST *) ((C_BLOB *) blob)->out_list ();
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* goutline_bounding_box()
|
|
*
|
|
* Return the bounding box of a generic outline.
|
|
**********************************************************************/
|
|
|
|
TBOX goutline_bounding_box( //Get bounding box
|
|
OUTLINE *outline, //generic outline
|
|
BOOL8 polygonal //is outline polygonal?
|
|
) {
|
|
if (polygonal)
|
|
return outline->bounding_box ();
|
|
else
|
|
return ((C_OUTLINE *) outline)->bounding_box ();
|
|
}
|