#include <gtk/gtk.h>
#include <stdio.h>
#include <malloc.h>
#include <math.h>
#define part 10
#define chno 26
static int len,count,tm[2][16];
static GdkPixmap *pixmap = NULL;
float statistic_data(char *src, char *des) // Real Core
Code
{
int i=0,j=0,ax,ay,bx,by,sigx=0,sigy=0;
float
xbar,ybar,sigu,sigv=0,sigu2=0,sigv2=0,siguv=0,karl_pearson,karl_pearsony;
float *u,*v,*u2,*v2,*uv;
FILE *X,*Y;
X = fopen (src,"r"); // open test
file
Y = fopen (des,"r"); //open template
file
while(!feof(X)) //until test
file ends
{
fscanf(X,"%d %d ",&ax,&ay); // get x y
sigx=sigx+ax; // calculate
sum of all x
fscanf(Y,"%d %d ",&bx,&by); // "
sigy=sigy+bx; //
"
i++;
}
rewind(X); // starting
file pointer
rewind(Y); // "
xbar=sigx/part; // mean x
of test
ybar=sigy/part; // mean x
of template
u = (float*)calloc (part,sizeof(float)); // create u=x-
x(bar) table
v = (float*)calloc (part,sizeof(float)); // "
u2 = (float*)calloc (part,sizeof(float)); // u(square
v2 = (float*)calloc (part,sizeof(float)); // v"
uv = (float*)calloc (part,sizeof(float)); // uv
for(i=1;i<=part;i++) // upto all
chunks
{
fscanf(X,"%d %d ",&ax,&ay); // get x y of
test
fscanf(Y,"%d %d ",&bx,&by); // get x y of
template
*(u+i) = ax-xbar; // put u =
x-x(bar)
sigu = sigu + *(u+i); // sumof all u
*(v+i) = bx-ybar; // "
sigv = sigv + *(v+i); //
"
*(u2+i) = (*(u+i)) * (*(u+i)); // calc
u(square)
sigu2 = sigu2 + *(u2+i); // sum of
u(square)
*(v2+i) = (*(v+i)) * (*(v+i)); // "
sigv2 = sigv2 + *(v2+i); //
"
*(uv+i) = (*(u+i)) * (*(v+i)); // calc u*v
siguv = siguv + *(uv+i); //sum of u*v
}
karl_pearson = siguv/(sqrt(sigu2) * sqrt(sigv2)); //
calculate
karlpearson
printf("\n%f is the karl pearson coefficient",karl_pearson);
while(!feof(X)) //similar as above but this is
for y axis
{
fscanf(X,"%d %d ",&ay,&ax);
sigx=sigx+ax;
fscanf(Y,"%d %d ",&by,&bx);
sigy=sigy+bx;
i++;
}
rewind(X);
rewind(Y);
xbar=sigx/part;
ybar=sigy/part;
u = (float*)calloc (part,sizeof(float));
v = (float*)calloc (part,sizeof(float));
u2 = (float*)calloc (part,sizeof(float));
v2 = (float*)calloc (part,sizeof(float));
uv = (float*)calloc (part,sizeof(float));
for(i=1;i<=part;i++)
{
fscanf(X,"%d %d ",&ay,&ax);
fscanf(Y,"%d %d ",&by,&bx);
*(u+i) = ax-xbar;
sigu = sigu + *(u+i);
*(v+i) = bx-ybar;
sigv = sigv + *(v+i);
*(u2+i) = (*(u+i)) * (*(u+i));
sigu2 = sigu2 + *(u2+i);
*(v2+i) = (*(v+i)) * (*(v+i));
sigv2 = sigv2 + *(v2+i);
*(uv+i) = (*(u+i)) * (*(v+i));
siguv = siguv + *(uv+i);
}
karl_pearsony = siguv/(sqrt(sigu2) * sqrt(sigv2));
printf("\n%f is the karl pearson coefficient",karl_pearsony);
fclose(X);
fclose(Y);
free(u); // free all pointer
free(v);
free(u2);
free(v2);
free(uv);
return karl_pearson+karl_pearsony; //return totoal karlpearson
}
void cleararea (GtkWidget *saw, gpointer data) // this is not working
i need to review in more detial
{
printf("\nuHUHUHU");
GtkWidget *draw = GTK_WIDGET(data);
gdk_draw_rectangle (pixmap,draw->style->white_gc,FALSE,0,0,draw-
>allocation.width,draw->allocation.height);
gtk_widget_queue_draw_area
(draw,0,0,draw->allocation.width,draw-
>allocation.height);
printf("\n%d",draw->allocation.width);
}
gboolean configure_pixmap (GtkWidget *widget, gpointer data)
//
create pixmap and adjust to drawing area
{
len = 0;
count=0;
if (pixmap)
g_object_unref(pixmap);
pixmap = gdk_pixmap_new(widget->window,widget-
>allocation.width,widget->allocation.height,-1);
gdk_draw_rectangle (pixmap,widget->style->white_gc,TRUE,0,0,widget-
>allocation.width,widget->allocation.height);
return TRUE;
}
gboolean draw_update(GtkWidget *widget)
// update drawing in
pixmap
{
gdk_draw_drawable (widget->window,widget->style-
>fg_gc[GTK_WIDGET_STATE (widget)],pixmap,0,0,0,0,widget-
>allocation.width, widget->allocation.height);
return TRUE;
}
gboolean getxy (GtkWidget *area, gpointer data) // show the
recognition comparision
{
FILE *fp,*np; // two
filepointer of all data and divided data
char ch,cha[2];
char *src = "ujwal.txt";
char *des[26] =
{"A.txt","B.txt","C.txt","D.txt","E.txt","F.txt","G.txt","H.txt","I.txt","J.txt","K.txt","L.txt","M.txt","N.txt","O.txt","P.txt","Q.txt","R.txt","S.txt","T.txt","U.txt","V.txt","W.txt","X.txt","Y.txt","Z.txt"};
//
list of files to compare
int x,n,c=0,i=1,y;
float cc,aa,bb,kar[chno];
static int a;
fp=fopen("tmp.txt","r"); // open all
data file
np=fopen("ujwal.txt","w+"); // open new
data file
GtkWidget *label = GTK_WIDGET(data); // label to
print recognised
character
c=0;
if(len == 0)
{
printf("error in writing and gaining data");
}
else
{
printf("\n%d is the length\n",len);
n=len/part; //divide 10
equal parts
while(!feof(fp)) //until file
ends
{
fscanf(fp,"%d %d ",&x,&y); //get xy from
file tmp.txt
if(n * i == c) //if that value
is exact 10 parts save in
{
fprintf(np,"%d %d ",x,y); // ujwal.txt
i++;
}
c++;
}
}
fclose(fp); //close files
fclose(np);
kar[0]=statistic_data(src,des[0]);
aa = kar[0];
ch = 65;
for (i = 1; i < chno;i++)
{
kar[i] = statistic_data(src,des[i]);
if (aa < kar[i])
{
aa = kar[i];
ch = 65 + i;
}
}
cha[0]=ch;
cha[1]='\0';
gtk_label_set_text (GTK_LABEL (label),cha);
printf(" %c is recognised\n\n\n ",ch);
return TRUE;
}
void draw (GtkWidget *draw,GdkEventButton *butto)
//function to
draw on pixmap
{
FILE *tmp; //create a file pointer tmp
int x,y; // x y interger variable
tmp=fopen("tmp.txt","a+"); // open tmp.txt in append mode +
GdkModifierType stat; // A GDK modifier mask
gdk_window_get_pointer (draw->window, &x, &y, &stat); //get
pointer x and y with mouse status
if (stat & GDK_BUTTON1_MASK) //check if button
pressed
{
//g_printf("%d and %d\t",x,y);
len++; // inc len var
fprintf(tmp,"%d %d ",x,y);
gdk_draw_rectangle (pixmap,draw->style-
>black_gc,TRUE,x-5,y-5,10,10); //draw small rectangle
gtk_widget_queue_draw_area (draw,x-5,y-5,10,10);
// query to draw
in pixmap
}
fclose(tmp); //close
file tmp.txt
}
void killall (GtkWidget *window,gpointer data) //function to
kill
window and all
{
gtk_main_quit();
}
int main( int argc,char *argv[] )
{
GtkWidget *window; //create a pointer
window
GtkWidget *frame; // "
GtkWidget *frame1; // "
GtkWidget *button; // "
GtkWidget *clrbut; // "
GtkWidget *box; // "
GtkWidget *box1; // "
GtkWidget *hbox; // "
GtkWidget *drawing; // "
GtkWidget *label; // "
FILE *tmp; // file pointer tmp
tmp=fopen("tmp.txt","w+"); // open file tmp.txt in
write mod if
exists or not
gtk_init (&argc, &argv); // program argument to
gtk
initiating function
window = gtk_window_new (GTK_WINDOW_TOPLEVEL); // create a new
window pointed by window pointer
box = gtk_vbox_new (FALSE, 0); // "
gtk_container_add (GTK_CONTAINER (window), box); // add box to
window
button = gtk_button_new_with_label ("Recognise"); // create a
button with label recognize
clrbut = gtk_button_new_with_label ("Clear"); // "
box1 = gtk_vbox_new (TRUE, 0); // "
hbox = gtk_hbox_new (TRUE,0); // "
label = gtk_label_new ("ujwal"); // "
drawing = gtk_drawing_area_new (); // "
fclose(tmp); // close file
(PURPOSE JUST CREATE A FILE)
gtk_window_set_title (GTK_WINDOW (window), "Handwriting
recognition"); //set title
gtk_widget_set_size_request (window, 300, 300);
// set size
gtk_widget_set_size_request (drawing, 100, 100);
// "
frame = gtk_frame_new (NULL);
// create new frame
frame1 = gtk_frame_new (NULL);
//
gtk_box_pack_start (GTK_BOX (box), hbox, TRUE, TRUE, 0);
// pack
hbox in box
gtk_box_pack_start (GTK_BOX (hbox), frame ,TRUE,TRUE, 0);
// "
gtk_box_pack_start (GTK_BOX (hbox), frame1 ,TRUE,TRUE, 0);
// "
gtk_container_add (GTK_CONTAINER (box1), button);
// add button
to box
gtk_container_add (GTK_CONTAINER (box1), clrbut);
// "
gtk_container_add (GTK_CONTAINER (frame1),label);
// "
gtk_box_pack_start (GTK_BOX (box), box1, TRUE, TRUE,0);
// "
gtk_container_add (GTK_CONTAINER (frame), drawing);
// "
gtk_frame_set_label (GTK_FRAME (frame), "Main area");
// set
frame name
gtk_frame_set_label (GTK_FRAME (frame1), "Recog");
// "
g_signal_connect (G_OBJECT(drawing),
"expose_event",G_CALLBACK(draw_update),NULL); //connect window expose
to draw_update function
g_signal_connect (G_OBJECT (drawing), "configure_event",G_CALLBACK
(configure_pixmap), NULL); //connect initial configuration to
configure_pixmap function
g_signal_connect (G_OBJECT (button), "clicked",G_CALLBACK (getxy),
label); // RECOGnize button clicked - start recognising
g_signal_connect (G_OBJECT (clrbut), "clicked",G_CALLBACK
(cleararea), drawing); // clear drawing area
g_signal_connect (G_OBJECT (drawing), "motion_notify_event",
G_CALLBACK (draw), NULL); // mouse in motion connect to draw function
g_signal_connect (G_OBJECT(window),"destroy",G_CALLBACK
(killall),NULL); // close button in window
gtk_widget_set_events (drawing,GDK_EXPOSURE_MASK
| GDK_LEAVE_NOTIFY_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_POINTER_MOTION_MASK
| GDK_POINTER_MOTION_HINT_MASK);
// mask for the
drawing area
gtk_widget_show (label); // show label
gtk_widget_show (frame); // "
gtk_widget_show (frame1); // "
gtk_widget_show (button); // "
gtk_widget_show (clrbut); // "
gtk_widget_show (box); // "
gtk_widget_show (hbox); // "
gtk_widget_show (drawing); // "
gtk_widget_show (box1); // "
gtk_widget_show (window); // "
gtk_main (); // run gtk all events
and guis
return 0; // function end return
value
}
use gcc -o <exec_name> <file_name.c> `pkg-config --cflags --libs gtk
+-2.0`
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