www.pudn.com > src.rar > latin.c

/*---------------------------------------------------------------------------
*    latin transformation
* ---------------------------------------------------------------------------*/
#include 
#include "bmp.h" 

#define MAXPATHLEN 64
static char directory_name[MAXPATHLEN];
static char file_name[MAXPATHLEN];
static char pathname[MAXPATHLEN]; 
static void *pdir=0, *pfile=0;

static int SCRAM_n = 1;
static int K1_n = 23;
static int K2_n = 110;
static int save_type = 0;
static int image_choice = 0;
static char filename[MAXPATHLEN];
static Imrect *orig_im = NULL;
static Imrect *dest_im = NULL;
static Tv *tv = NULL;
static Tv *tv1=NULL;

static void save_choice_proc(int val) 
{ 
	save_type = val; 
}
static image_choice_proc(int val)
{
	image_choice = val;
}
static 	Imrect *read_image(void)
{
	Imrect *srcIm;
/*----------------Read the image---------------------------*/
  	(void) strip_spaces(file_name);
  	(void) strip_spaces(directory_name);
  	(void) string_append(pathname, directory_name, "/", file_name, NULL);
	switch( image_choice )
	{
		case 0:
			srcIm = BmpToImrect(pathname);
			break;
		case 1:
			srcIm = ReadGIF(pathname, 1);
			break;
		default:
			break;
	}

/*------------------------------------------------*/
	return(srcIm);
}
static void mypush_proc(void)
{
	Imrect *srcIm = NULL,*srcIm0 =NULL;
	int width, height; 
	Imregion *roi;
	int i,j;
	//BYTE pix;
	float pix;
	srcIm = read_image();
	width = srcIm->width; 
    	height = srcIm->height; 
	roi = srcIm->region; 
	if (roi == NULL) return ;

	srcIm0 = im_alloc( height, width, roi, float_v );
	for(i = 0;i < height; i ++)
		for(j = 0;j < width; j++)
		{
			IM_PIX_GET(srcIm, i, j, pix); 
			IM_PIX_SET(srcIm0, i, j, pix);
		}

	orig_im = im_copy(srcIm);
	tv_imrect2(tv, orig_im);
	mono_image_set(srcIm0);
	stack_push(srcIm0, IMRECT, im_free);
}
static Imrect* mypop_proc(void)
{
	Imrect *srcIm;
	//BYTE pix;
	float pix;
	int type;
	if (stack_check_types(IMRECT, NULL) == false) 
	{ 
		error("send-client : wrong types on stack", warning); 
		return; 
	}
	srcIm = (Imrect *) stack_pop(&type);
	return srcIm;
}
static void mysave_proc(void)
{
	Imrect *srcIm = NULL,*srcIm0 = NULL;
	int type;

	int width, height; 
	Imregion *roi;
	int i,j;
	//BYTE pix;
	float pix;

	if (stack_check_types(IMRECT, NULL) == false) 
	{ 
		error("send-client : wrong types on stack", warning); 
		return; 
	}
	srcIm = (Imrect *) stack_pop(&type);

	width = srcIm->width; 
    	height = srcIm->height; 
	roi = srcIm->region; 
	if (roi == NULL) return ;

	srcIm0 = im_alloc( height, width, roi, float_v );
	for(i = 0;i < height; i ++)
		for(j = 0;j < width; j++)
		{
			IM_PIX_GET(srcIm, i, j, pix); 
			IM_PIX_SET(srcIm0, i, j, pix);
		}

	//strcat(filename,".gif");
	//gif_write_file(srcIm0,filename);
	char filenamesave[64];
	strcpy(filenamesave,filename);
	switch(save_type)
	{
		case 0:
			strcat(filenamesave,".bmp");
			ImrectToBMP8(srcIm0,filenamesave);
			break;
		case 1:
			strcat(filenamesave,".gif");
			gif_write_file_color(srcIm0,filenamesave);
			break;
		default:error("mysave : unknown choice\n", warning);
			break;
	}			
	printf("saved the image :%s\n",filenamesave);
	mono_image_set(srcIm0); 
	stack_push(srcIm0, IMRECT, im_free);
}
static void myshow_proc(void)
{
	Imrect *srcIm,*srcIm0;
	int type;

	int width, height; 
	Imregion *roi;

	int i,j;
	//BYTE pix;
	float pix;

	if (stack_check_types(IMRECT, NULL) == false) 
	{ 
		error("send show : wrong types on stack", warning); 
		return; 
	}
	srcIm = (Imrect *) stack_pop(&type);

	width = srcIm->width; 
    	height = srcIm->height; 
	roi = srcIm->region; 
	if (roi == NULL) return ;
	srcIm0 = im_alloc( height, width, roi, float_v );
	for(i = 0;i < height; i ++)
		for(j = 0;j < width; j++)
		{
			IM_PIX_GET(srcIm, i, j, pix); 
			IM_PIX_SET(srcIm0, i, j, pix);
		}

	orig_im = im_copy(srcIm);
	tv_imrect2(tv, orig_im);
	mono_image_set(srcIm0); 
	stack_push(srcIm0, IMRECT, im_free);
}

static void reset_proc(void)
{
	strcpy(filename,"result/Latin/");
	//strcat(filename,file_name);
	mypop_proc();
}
/*---------------------------------------------------------------------------
     To generate the scrambling mapping-matrix of latin transformation.
 ---------------------------------------------------------------------------*/
void latin_matrix(int** r, int** c, int height, int width) 
{ 
    int i, j, x, y; 
 
    printf("\nLatin transform\n"); 
	for (i = 0; i < height; i++) 
	{ 
		for (j = 0; j< width; j++) 
		{ 
			x = (K1_n * i + j) % width; 
			y = (K2_n * i + j) % width; 
 
			r[i][j] = x; 
			c[i][j] = y; 
		} 
	} 
}
 /*---------------------------------------------------------------------------
  To generate the inverse scrambling mapping-matrix of latin transformation.
 ---------------------------------------------------------------------------*/
void r_latin_matrix(int** src_r,int** src_c, int height, int width)
{
	int i,j,r,c;
	int **trans_r, **trans_c; 
	trans_r = int_matrix(height, width); 
	trans_c = int_matrix(height, width);
	latin_matrix(trans_r, trans_c, height, width);
	printf("\nR_Latin transform\n");
	for(i = 0; i < height; i++) 
	{ 
		for(j = 0; j < width; j++) 
		{ 
			r = trans_r[i][j]; 
			c = trans_c[i][j]; 
			src_r[r][c] = i; 
			src_c[r][c] = j; 
		} 
	}
	free_int_matrix(trans_r, height); 
	free_int_matrix(trans_c, height);
}

 /*---------------------------------------------------------------------------
     latin transformation
 ---------------------------------------------------------------------------*/
void Latin_Trans(int nTrans) 
{ 
	Imrect *srcIm = NULL,*destIm = NULL,*tmpIm = NULL,*srcIm0 = NULL; 
	int width, height; 
	Imregion *roi;
	int i,j,k;
	int type; 
	//BYTE pix;
	float pix;

	if (stack_check_types(IMRECT, NULL) == false) 
	{ 
		error("Latin : wrong types on stack", warning); 
		return; 
	}
	srcIm = (Imrect *) stack_pop(&type);

	//srcIm = read_image();
	//srcIm = DrawRGB_proc(); 
	width = srcIm->width; 
    	height = srcIm->height;
 
	if (width != height) 
	{ 
		error("Latin:width != height", warning); 
		return; 
	} 
 
	roi = srcIm->region; 
	if (roi == NULL) return ;

/*------------------------------------------------*/
	int **trans_r, **trans_c; 
	trans_r = int_matrix(height, width); 
	trans_c = int_matrix(height, width);
	latin_matrix(trans_r, trans_c, height, width);
 
/*------------------------------------------------*/ 
	printf("\n\n=== Latin Transform begin: ===\n");

	destIm = im_alloc( height, width, roi, float_v );
	srcIm0 = im_alloc( height, width, roi, float_v );
	for(i = 0;i < height; i ++)
		for(j = 0;j < width; j++)
		{
			IM_PIX_GET(srcIm, i, j, pix); 
			IM_PIX_SET(srcIm0, i, j, pix);
		}
 
	for( k = 0; k < SCRAM_n; k++) 
	{	
		for (i = 0; i < height  ; i++) 
		{ 
			for (j = 0; j< width ; j++) 
			{				
				IM_PIX_GET(srcIm0, i, j, pix); 
				IM_PIX_SET(destIm, trans_r[i][j], trans_c[i][j], pix); 
			} 
		} 
 		tmpIm = srcIm0; 
		srcIm0 = destIm; 
		destIm = tmpIm;
	}

/*----------------------Save the image --------------------------
	char string[25];
	gcvt(k+1,5,string);
	printf("string=%s\n",string);
	//strcat(filename,"Latin_");
	//strcat(filename, string);

	char filenamesave[64];
	strcpy(filenamesave,"result/Latin/100/Lena_Latin_");
	strcat(filenamesave, string);
	switch(save_type)
	{
		case 0:
			strcat(filenamesave,".bmp");
			ImrectToBMP8(srcIm0,filenamesave);
			//strcat(filenamesave,".gif");
			//gif_write_file(srcIm0,filenamesave);
			break;
		case 1:
			strcat(filenamesave,".gif");
			gif_write_file_color(srcIm0,filenamesave);
			break;
		case 2:
			break;
		default:error("latin trans: unknown choice\n", warning);
			break;
	}			
	printf("saved the image :%s\n",filenamesave);
}
/*------------------------------------------------*/
	dest_im = im_copy(srcIm0);
	tv_imrect2(tv1, dest_im);
	mono_image_set(srcIm0); 
	stack_push(srcIm0, IMRECT, im_free);
	im_free(destIm);
	free_int_matrix(trans_r, height); 
	free_int_matrix(trans_c, height);
	printf("=== Latin transform complete! ===\n"); 
} 
/*---------------------------------------------------------------------------
    inverse latin transformation
 ---------------------------------------------------------------------------*/
void R_Latin_Trans(int nTrans) 
{ 
	Imrect *srcIm,*destIm,*tmpIm,*srcIm0; 
	int width, height; 
	Imregion *roi;
	int i,j,k;
	int type; 
	//BYTE pix;
	float pix;

	if (stack_check_types(IMRECT, NULL) == false) 
	{ 
		error("Latin : wrong types on stack", warning); 
		return; 
	}
	srcIm = (Imrect *) stack_pop(&type);

	//srcIm = read_image(); 
	width = srcIm->width; 
    	height = srcIm->height; 
	if (width != height) 
	{ 
		error("R_Latin:width != height", warning); 
		return; 
	} 
 
	roi = srcIm->region; 
	if (roi == NULL) return ; 

/*------------------------------------------------*/
	int **trans_r, **trans_c; 
	trans_r = int_matrix(height, width); 
	trans_c = int_matrix(height, width);
	r_latin_matrix(trans_r, trans_c, height, width);
/*------------------------------------------------*/ 
	printf("\n\n=== R_Latin Transform begin: ===\n");

	destIm = im_alloc( height, width, roi, float_v );
	srcIm0 = im_alloc( height, width, roi, float_v );
	for(i = 0;i < height; i ++)
		for(j = 0;j < width; j++)
		{
			IM_PIX_GET(srcIm, i, j, pix); 
			IM_PIX_SET(srcIm0, i, j, pix);
		}
 
	for( k = 0; k < SCRAM_n; k++) 
	{	
		for (i = 0; i < height  ; i++) 
		{ 
			for (j = 0; j< width ; j++) 
			{				
				IM_PIX_GET(srcIm0, i, j, pix); 
				IM_PIX_SET(destIm, trans_r[i][j], trans_c[i][j], pix); 
			} 
		} 
 		tmpIm = srcIm0; 
		srcIm0 = destIm; 
		destIm = tmpIm;
	}

/*----------------------Save the image --------------------------*/
	char string[25];
	gcvt(k,5,string);
	printf("string=%s\n",string);
	strcat(filename,"R_Latin_");
	strcat(filename, string);

	char filenamesave[64];
	strcpy(filenamesave,filename);
	switch(save_type)
	{
		case 0:
			strcat(filenamesave,".bmp");
			ImrectToBMP8(srcIm0,filenamesave);
			//strcat(filenamesave,".gif");
			//gif_write_file(srcIm0,filenamesave);
			break;
		case 1:
			strcat(filenamesave,".gif");
			gif_write_file_color(srcIm0,filenamesave);
			break;
		case 2:
			break;
		default:error("latin R_trans: unknown choice\n", warning);
			break;
	}			
	printf("saved the image :%s\n",filenamesave);

/*------------------------------------------------*/
	dest_im = im_copy(srcIm0);
	tv_imrect2(tv1, dest_im);
	mono_image_set(srcIm0); 
	stack_push(srcIm0, IMRECT, im_free);
	im_free(destIm);
	free_int_matrix(trans_r, height); 
	free_int_matrix(trans_c, height);
	printf("=== R_Latin transform complete! ===\n"); 
}
static void fulldraw(Tv *tv)
{
     tv_imrect2(tv, orig_im);
}

static void fulldraw1(Tv *tv)
{
     tv_imrect2(tv, dest_im);
}
static void tv_choice_proc(choice) 
int     choice; 
{ 
    switch (choice) 
    	{ 
    	case 0: tv_set_next(tv); 
		break; 
    	case 1: tv_set_next(tv1); 
		break; 
    	default:error("tv_choice_proc: unknown choice\n", warning); 
		break; 
    	}
}

static void scan_proc(void)
{
    scan_files(directory_name,file_name);
    tw_sglobal_reset(pdir);
    tw_sglobal_reset(pfile);
}



void            Latin_tool(int x, int y) 
{ 
	static void *tool = NULL;
 
	static void tv_choice_proc();
	if (tool) 
	{ 
		tw_show_tool(tool); 
		return; 
	} 
	tool = (void *)tw_tool("Latin Scrambling tool", x, y);
    	/* Initialise pathname from environment variable (or #define) */
    	(void) environ_pathname_get(directory_name, file_name,
				"TINA_IMAGE_DEFAULT",
				"/home/wzz/newimscramdegree/result/Latin/Lena.bmp");

	tv = tv_create("Latin original"); 
     	tv1 = tv_create("Latin scrambled");
         tw_choice("Tv choice", tv_choice_proc, 0, "original","scrambled", NULL);
	tv_set_fulldraw(tv, fulldraw);
	tv_set_fulldraw(tv1,fulldraw1);
	tw_newrow();
	strcpy(filename,"result/Latin/");
	//strcat(filename,file_name);
	/*---------------------------*/
  	pdir = (void *) tw_sglobal("Directory:", directory_name, 32);
    	tw_button("scan", scan_proc, NULL);
  	tw_newrow();
  	pfile = (void*) tw_sglobal("File:", file_name, 32);
  	tw_newrow();
	/*---------------------------*/
        tw_choice("input image choice", image_choice_proc, 0, "BMP","GIF", NULL);
   	tw_label("              ");
	tw_button("push",mypush_proc,NULL);
	tw_button("pop",mypop_proc,NULL);
	tw_button("show",myshow_proc,NULL);
	tw_newrow();
	tw_choice("choice", save_choice_proc, 0, "Gray", "RGB", "without save", NULL);
   	tw_label("                       ");
	tw_button("save",mysave_proc,NULL); 
	tw_newrow();
	tw_iglobal("a(k1) = ", &K1_n, 5);
	tw_iglobal("a(k2) = ", &K2_n, 5);
	tw_newrow();
	tw_iglobal("Scrambling times = ", &SCRAM_n, 5); 
	tw_newrow(); 
	tw_button("Latin", Latin_Trans,NULL);
	tw_button("R_Latin", R_Latin_Trans,NULL);  
   	tw_label("              ");
	tw_button("reset",reset_proc,NULL);
	tw_newrow();
	tw_newrow(); 
	tw_end_tool(); 
}