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https://github.com/tesseract-ocr/tesseract.git
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bfd79a970e
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@37 d0cd1f9f-072b-0410-8dd7-cf729c803f20
119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
/* -*-C-*-
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********************************************************************************
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*
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* File: matrix.c (Formerly matrix.c)
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* Description: Ratings matrix code. (Used by associator)
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* Author: Mark Seaman, OCR Technology
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* Created: Wed May 16 13:18:47 1990
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* Modified: Wed Mar 20 09:44:47 1991 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Experimental (Do Not Distribute)
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*
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* (c) Copyright 1990, Hewlett-Packard Company.
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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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/*----------------------------------------------------------------------
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I n c l u d e s
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----------------------------------------------------------------------*/
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#include "matrix.h"
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#include "cutil.h"
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#include "freelist.h"
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#include "callcpp.h"
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/*----------------------------------------------------------------------
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F u n c t i o n s
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----------------------------------------------------------------------*/
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/**********************************************************************
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* create_matrix
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*
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* Allocate a piece of memory to hold a matrix of choice list pointers.
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* initialize all the elements of the matrix to NULL.
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**********************************************************************/
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MATRIX create_matrix(int dimension) {
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MATRIX m;
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int x;
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int y;
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m = (MATRIX) memalloc ((dimension * dimension + 1) * sizeof (LIST));
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m[0] = (LIST) dimension;
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for (x = 0; x < dimension; x++)
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for (y = 0; y < dimension; y++)
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matrix_put(m, x, y, NOT_CLASSIFIED);
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return (m);
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}
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/**********************************************************************
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* free_matrix
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*
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* Deallocate the memory taken up by a matrix of match ratings.
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*********************************************************************/
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void free_matrix(MATRIX matrix) {
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int x;
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int y;
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int dimension = matrix_dimension (matrix);
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CHOICES matrix_cell;
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for (x = 0; x < dimension; x++) {
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for (y = 0; y < dimension; y++) {
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matrix_cell = matrix_get (matrix, x, y);
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if (matrix_cell != NOT_CLASSIFIED)
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free_choices(matrix_cell);
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}
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}
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memfree(matrix);
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}
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/**********************************************************************
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* print_matrix
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*
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* Print the best guesses out of the match rating matrix.
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**********************************************************************/
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void print_matrix(MATRIX rating_matrix) {
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int x;
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int dimension;
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int spread;
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CHOICES rating;
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cprintf ("Ratings Matrix (top choices)\n");
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dimension = matrix_dimension (rating_matrix);
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/* Do each diagonal */
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for (spread = 0; spread < dimension; spread++) {
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/* For each spot */
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for (x = 0; x < dimension - spread; x++) {
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/* Process one square */
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rating = matrix_get (rating_matrix, x, x + spread);
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if (rating != NOT_CLASSIFIED) {
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cprintf ("\t[%d,%d] : ", x, x + spread);
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if (first_node (rating))
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cprintf ("%-10s%4.0f\t|\t",
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class_string (first_node (rating)),
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class_probability (first_node (rating)));
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if (second_node (rating))
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cprintf ("%-10s%4.0f\t|\t",
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class_string (second_node (rating)),
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class_probability (second_node (rating)));
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if (third (rating))
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cprintf ("%-10s%4.0f\n",
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class_string (third (rating)),
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class_probability (third (rating)));
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else
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new_line();
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}
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}
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}
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}
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