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86 lines
2.5 KiB
Plaintext
86 lines
2.5 KiB
Plaintext
// test routines - faster to compile
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#include <stdlib.h>
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#include <stdio.h>
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#include "pgm2asc.h"
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#include "unicode.h"
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#include "amiga.h"
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#include "gocr.h"
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// for learn_mode/analyze_mode high, with, yoffset, num of pattern_i,
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// - holes (center,radius in relative coordinates) etc. => cluster analyze
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// num_hole => min-volume, tolerance border
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// pattern: @@ @. @@
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// .@ @. ..
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// regular filter for large resolutions to make edges more smooth (on boxes)
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// extra-filter (only if not recognized?)
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// map + same color to (#==change)
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// - anti color
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// . not used
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// strongest neighbour pixels (3x3) => directions
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// second/third run with more and more tolerance!?
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/* FIXME jb: following is unused */
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#if 0
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struct lobj { // line-object (for fitting to near lines)
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int x0,y0; // starting point (left up)
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int x1,y1; // end point (right down)
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int mt; // minimum thickness
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int q; // quality, overlapp
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};
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/* FIXME jb global */
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struct lobj obj1;
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#endif
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// that is the first draft of feature extraction
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// detect main lines and bows
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// seems bad implemented, looking for better algorithms (ToDo: use autotrace)
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#define MAXL 10
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void ocr2(pix *b,int cs){
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int x1,y1,x2,y2,l,i,j,xa[MAXL],ya[MAXL],xb[MAXL],yb[MAXL],ll[MAXL];
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for(i=0;i<MAXL;i++)xa[i]=ya[i]=xb[i]=yb[i]=ll[i]=0;
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for(x1=0;x1<b->x;x1++) // very slowly, but simple to program
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for(y1=0;y1<b->y;y1++) // brute force
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for(x2=0;x2<b->x;x2++)
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for(y2=y1+1;y2<b->y;y2++)
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{
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if( get_line2(x1,y1,x2,y2,b,cs,100)>99 )
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{ // line ???
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l=(x2-x1)*(x2-x1)+(y2-y1)*(y2-y1); // len
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for(i=0;i<MAXL;i++)
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{ // remove similar lines (same middle point) IMPROVE IT !!!!!! ???
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if(
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abs(x1+x2-xa[i]-xb[i])<1+b->x/2
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&& abs(y1+y2-ya[i]-yb[i])<1+b->y/2
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&& abs(y1-ya[i])<1+b->y/4
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&& abs(x1-xa[i])<1+b->x/4
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)
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{
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if( l>ll[i] )
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{
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for(j=i;j<MAXL-1;j++)
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{ // shift table
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xa[j]=xa[j+1];ya[j]=ya[j+1];
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xb[j]=xb[j+1];yb[j]=yb[j+1];ll[j]=ll[j+1];
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}
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ll[MAXL-1]=0;
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}
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else break; // forget it if shorter
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}
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if( l>ll[i] ){ // insert if larger
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for(j=MAXL-1;j>i;j--){ // shift table
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xa[j]=xa[j-1];ya[j]=ya[j-1];
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xb[j]=xb[j-1];yb[j]=yb[j-1];ll[j]=ll[j-1];
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}
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xa[i]=x1;ya[i]=y1;xb[i]=x2;yb[i]=y2;ll[i]=l;
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break;
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}
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}
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}
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}
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for(i=0;i<MAXL;i++){
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printf(" %2d %2d %2d %2d %3d\n",xa[i],ya[i],xb[i],yb[i],ll[i]);
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}
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}
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