Commit 7c36f258 authored by Andrey Filippov's avatar Andrey Filippov
Browse files

implemented (I)CLT and shift

parent 122aa397

src/main/java/DttRad2.java

+129 −45
Original line number Original line Diff line number Diff line
@@ -44,10 +44,10 @@ public class DttRad2 { 
	double [] hwindow = null; // half window

	double [] hwindow = null; // half window

	int    [][] fold_index = null; // index of the source item in 2nx2n array input to mdct_2d.

	int    [][] fold_index = null; // index of the source item in 2nx2n array input to mdct_2d.

	                               // First index (0..n^2-1) index in the folded array (dct-iV input) 

	                               // First index (0..n^2-1) index in the folded array (dct-iV input) 

	                               // Second index(0..3) - item to add (2 vertiacl, 2 - horizontal)  

	                               // Second index(0..3) - item to add (2 vertical, 2 - horizontal)  

	double [][] fold_k = null; // Matching fold_index items. Each is a product of 2 window coefficients and sign  

	double [][][] fold_k = null; // First index - mode: 0 - CC 1: SC, 2: CS, 3: SS. Other indices matching fold_index items. Each is a product of 2 window coefficients and sign  

	int    [] unfold_index = null;  // index  for each element of idct(2nx2n)

	int    [] unfold_index = null;  // index  for each element of idct(2nx2n)

	double [] unfold_k = null; // Matching unfold_index items. Each is a product of 2 window coefficients and sign  

	double [][] unfold_k = null; // First index - mode: 0 - CC 1: SC, 2: CS, 3: SS. Other indices matching unfold_index items. Each is a product of 2 window coefficients and sign  

	

	

	public DttRad2 (int maxN){ // n - maximal

	public DttRad2 (int maxN){ // n - maximal

		setup_arrays(maxN); // always setup arrays for fast calculations

		setup_arrays(maxN); // always setup arrays for fast calculations
@@ -87,25 +87,31 @@ public class DttRad2 { 
	// For index in dct-iv input (0..n-1) get 2 variants of index in mdct input array (0..2*n-1)

	// For index in dct-iv input (0..n-1) get 2 variants of index in mdct input array (0..2*n-1)

	// second index : 0 - index in X array 2*n long

	// second index : 0 - index in X array 2*n long

	//                1 - window index (0..n-1), [0] - minimal, [n-1] - max

	//                1 - window index (0..n-1), [0] - minimal, [n-1] - max

	//                2 - sign of the term

	//                2 - sign of the C term  (-~c - d, +a -~b)

	//                3 - sign of the S term  (+~c - d, +a +~b)

	private int [][] get_fold_indices(int x, int n){

	private int [][] get_fold_indices(int x, int n){

		int n1 = n>>1;

		int n1 = n>>1;

		int [][] ind = new int[2][3];

		int [][] ind = new int[2][4];

		if (x <n1) {

		if (x <n1) {

			ind[0][0] = n + n1 - x - 1; // -cR

			ind[0][0] = n + n1 - x - 1; // C: -cR, S: +cR

			ind[0][1] = n1     + x;

			ind[0][1] = n1     + x;

			ind[0][2] = -1;

			ind[0][2] = -1;

			ind[1][0] = n + n1 + x;     // -d

			ind[0][3] =  1;

			ind[1][0] = n + n1 + x;     // C: -d,  S: -d

			ind[1][1] = n1     - x - 1;

			ind[1][1] = n1     - x - 1;

			ind[1][2] = -1;

			ind[1][2] = -1;

			ind[1][3] = -1;

		} else {

		} else {

			x-=n1;

			x-=n1;

			ind[0][0] =          x;     // +a

			ind[0][0] =          x;     // C: +a, S: +a

			ind[0][1] =          x;

			ind[0][1] =          x;

			ind[0][2] = 1;

			ind[0][2] = 1;

			ind[1][0] = n      - x - 1; // -bR

			ind[0][3] = 1;

			

			ind[1][0] = n      - x - 1; // C: -bR, S: +bR

			ind[1][1] = n      - x - 1;

			ind[1][1] = n      - x - 1;

			ind[1][2] = -1;

			ind[1][2] = -1;

			ind[1][3] =  1;

		}

		}

		

		

		return ind;

		return ind;
@@ -114,49 +120,57 @@ public class DttRad2 { 
	private void set_fold_2d(int n){ // n - DCT and window size

	private void set_fold_2d(int n){ // n - DCT and window size

		if ((fold_index != null) && (fold_index.length == n*n)) return;

		if ((fold_index != null) && (fold_index.length == n*n)) return;

		fold_index = new int[n*n][4];

		fold_index = new int[n*n][4];

		fold_k =     new double[n*n][4];

		fold_k =     new double[4][n*n][4];

		int []    vert_ind = new int[2];

		int []    vert_ind = new int[2];

		double [] vert_k = new double[2];

		double [][] vert_k = new double[2][2];

		int    [] hor_ind = new int[2];

		int    [] hor_ind = new int[2];

		double [] hor_k = new double[2];

		double [][] hor_k = new double[2][2];

		int [][] fi;

		int [][] fi;

		int n2 = 2*n;

		int n2 = 2*n;

		for (int i = 0; i < n; i++ ){

		for (int i = 0; i < n; i++ ){

			fi = get_fold_indices(i,n);

			fi = get_fold_indices(i,n);

			vert_ind[0] = fi[0][0];

			vert_ind[0] = fi[0][0];

			vert_ind[1] = fi[1][0];

			vert_ind[1] = fi[1][0];

			vert_k[0] =   fi[0][2] * hwindow[fi[0][1]];

			vert_k[0][0] =   fi[0][2] * hwindow[fi[0][1]]; // use cosine sign

			vert_k[1] =   fi[1][2] * hwindow[fi[1][1]];

			vert_k[0][1] =   fi[1][2] * hwindow[fi[1][1]]; // use cosine sign

			vert_k[1][0] =   fi[0][3] * hwindow[fi[0][1]]; // use sine sign

			vert_k[1][1] =   fi[1][3] * hwindow[fi[1][1]]; // use sine sign

			for (int j = 0; j < n; j++ ){

			for (int j = 0; j < n; j++ ){

				fi = get_fold_indices(j,n);

				fi = get_fold_indices(j,n);

				hor_ind[0] = fi[0][0];

				hor_ind[0] = fi[0][0];

				hor_ind[1] = fi[1][0];

				hor_ind[1] = fi[1][0];

				hor_k[0] =   fi[0][2] * hwindow[fi[0][1]];

				hor_k[0][0] =   fi[0][2] * hwindow[fi[0][1]]; // use cosine sign

				hor_k[1] =   fi[1][2] * hwindow[fi[1][1]];

				hor_k[0][1] =   fi[1][2] * hwindow[fi[1][1]]; // use cosine sign

				hor_k[1][0] =   fi[0][3] * hwindow[fi[0][1]]; // use sine sign

				hor_k[1][1] =   fi[1][3] * hwindow[fi[1][1]]; // use sine sign

				int indx = n*i + j;

				int indx = n*i + j;

				for (int k = 0; k<4;k++) {

				for (int k = 0; k<4;k++) {

					fold_index[indx][k] = n2 * vert_ind[(k>>1) & 1] + hor_ind[k & 1];

					fold_index[indx][k] = n2 * vert_ind[(k>>1) & 1] + hor_ind[k & 1];

					fold_k[indx][k] =     vert_k[(k>>1) & 1] * hor_k[k & 1]; 

				}

				for (int mode = 0; mode<4; mode++){

					for (int k = 0; k<4;k++) {

						fold_k[mode][indx][k] =     vert_k[(mode>>1) &1][(k>>1) & 1] * hor_k[mode &1][k & 1]; 

					}

				}

				}

			}

			}

		}

		}

		if (n < 8) {

		if (n < 8) {

			for (int i = 0; i < n; i++ ){

			for (int i = 0; i < n; i++ ){

				fi = get_fold_indices(i,n);

				fi = get_fold_indices(i,n);

				System.out.println(i+"->"+String.format("[%2d % 2d % 2d] [%2d %2d %2d] %f %f",

				System.out.println(i+"->"+String.format("?[%2d %2d %2d %2d] [%2d %2d %2d %2d] %f %f",

						fi[0][0],fi[0][1],fi[0][2],

						fi[0][0],fi[0][1],fi[0][2],fi[0][3],

						fi[1][0],fi[1][1],fi[1][2], hwindow[fi[0][1]], hwindow[fi[1][1]]));

						fi[1][0],fi[1][1],fi[1][2],fi[1][3], hwindow[fi[0][1]], hwindow[fi[1][1]]));

			}

			}

		}

		}

	}

	}

	

	

	public double [][] get_fold_2d(

	public double [][][] get_fold_2d(

			double scale_hor,

			double scale_hor,

			double scale_vert)

			double scale_vert)

	{

	{

		return get_fold_2d( this.N, scale_hor, scale_vert);

		return get_fold_2d( this.N, scale_hor, scale_vert);

	}

	}

	public double [][] get_fold_2d(

	public double [][][] get_fold_2d(

			int n,

			int n,

			double scale_hor,

			double scale_hor,

			double scale_vert

			double scale_vert
@@ -173,37 +187,53 @@ public class DttRad2 { 
				hwindow_h[i] = (ah > (Math.PI/2))? 0.0: Math.cos(ah);

				hwindow_h[i] = (ah > (Math.PI/2))? 0.0: Math.cos(ah);

				hwindow_v[i] = (av > (Math.PI/2))? 0.0: Math.cos(av);

				hwindow_v[i] = (av > (Math.PI/2))? 0.0: Math.cos(av);

			}

			}

		double [][] fold_sk =     new double[n*n][4];

		double [][][] fold_sk = new double[2][n*n][4];

		int []    vert_ind =    new int[2];

		int []    vert_ind =    new int[2];

		double [] vert_k = new double[2];

		double [][] vert_k =    new double[2][2];

		int    [] hor_ind =     new int[2];

		int    [] hor_ind =     new int[2];

		double [] hor_k = new double[2];

		double [][] hor_k =     new double[2][2];

		int [][] fi;

		int [][] fi;

		for (int i = 0; i < n; i++ ){

		for (int i = 0; i < n; i++ ){

			fi = get_fold_indices(i,n);

			fi = get_fold_indices(i,n);

			vert_ind[0] = fi[0][0];

			vert_ind[0] = fi[0][0];

			vert_ind[1] = fi[1][0];

			vert_ind[1] = fi[1][0];

			vert_k[0] =   fi[0][2] * hwindow_v[fi[0][1]];

//			vert_k[0] =   fi[0][2] * hwindow_v[fi[0][1]];

			vert_k[1] =   fi[1][2] * hwindow_v[fi[1][1]];

//			vert_k[1] =   fi[1][2] * hwindow_v[fi[1][1]];

			vert_k[0][0] =   fi[0][2] * hwindow_v[fi[0][1]]; // use cosine sign

			vert_k[0][1] =   fi[1][2] * hwindow_v[fi[1][1]]; // use cosine sign

			vert_k[1][0] =   fi[0][3] * hwindow_v[fi[0][1]]; // use sine sign

			vert_k[1][1] =   fi[1][3] * hwindow_v[fi[1][1]]; // use sine sign

			

			for (int j = 0; j < n; j++ ){

			for (int j = 0; j < n; j++ ){

				fi = get_fold_indices(j,n);

				fi = get_fold_indices(j,n);

				hor_ind[0] = fi[0][0];

				hor_ind[0] = fi[0][0];

				hor_ind[1] = fi[1][0];

				hor_ind[1] = fi[1][0];

				hor_k[0] =   fi[0][2] * hwindow_h[fi[0][1]];

//				hor_k[0] =   fi[0][2] * hwindow_h[fi[0][1]];

				hor_k[1] =   fi[1][2] * hwindow_h[fi[1][1]];

//				hor_k[1] =   fi[1][2] * hwindow_h[fi[1][1]];

				hor_k[0][0] =   fi[0][2] * hwindow_h[fi[0][1]]; // use cosine sign

				hor_k[0][1] =   fi[1][2] * hwindow_h[fi[1][1]]; // use cosine sign

				hor_k[1][0] =   fi[0][3] * hwindow_h[fi[0][1]]; // use sine sign

				hor_k[1][1] =   fi[1][3] * hwindow_h[fi[1][1]]; // use sine sign

				

				int indx = n*i + j;

				int indx = n*i + j;

//				for (int k = 0; k<4;k++) {

//					fold_sk[indx][k] =     vert_k[(k>>1) & 1] * hor_k[k & 1]; 

//				}

				

				for (int mode = 0; mode<4; mode++){

					for (int k = 0; k<4;k++) {

					for (int k = 0; k<4;k++) {

					fold_sk[indx][k] =     vert_k[(k>>1) & 1] * hor_k[k & 1]; 

						fold_sk[mode][indx][k] =     vert_k[(mode>>1) &1][(k>>1) & 1] * hor_k[mode &1][k & 1]; 

					}

				}

				}

			}

			}

		}

		}

		return fold_sk;

		return fold_sk;

	}

	}

	

	

	

/*	

	// return index+1 and sign for 1-d imdct. x is index (0..2*n-1) of the imdct array, value is sign * (idct_index+1),

	// return index+1 and sign for 1-d imdct. x is index (0..2*n-1) of the imdct array, value is sign * (idct_index+1),

	// where idct_index (0..n-1) is index in the dct-iv array

	// where idct_index (0..n-1) is index in the dct-iv array

	private int get_unfold_index(int x, int n){

	private int get_unfold_index_signes(int x, int n){

		int n1 = n>>1;

		int n1 = n>>1;

		int segm = x / n1;

		int segm = x / n1;

		x = x % n1;

		x = x % n1;
@@ -218,7 +248,7 @@ public class DttRad2 { 
	private void set_unfold_2d(int n){ // n - DCT size

	private void set_unfold_2d(int n){ // n - DCT size

		if ((unfold_index != null) && (unfold_index.length == 4*n*n)) return;

		if ((unfold_index != null) && (unfold_index.length == 4*n*n)) return;

		unfold_index = new int[4*n*n];

		unfold_index = new int[4*n*n];

		unfold_k = new double[4*n*n];

		unfold_k = new double[4][4*n*n];

		int n2 = 2*n;

		int n2 = 2*n;

		for (int i = 0; i < 2*n; i++ ){

		for (int i = 0; i < 2*n; i++ ){

			int index_vert = get_unfold_index(i,n);

			int index_vert = get_unfold_index(i,n);
@@ -253,6 +283,52 @@ public class DttRad2 { 
			}

			}

		}

		}

	}	

	}	

*/

	// return index and two signs (c,s) for 1-d imdct. x is index (0..2*n-1) of the imdct array, value is sign * (idct_index+1),

	// where idct_index (0..n-1) is index in the dct-iv array

	private int [] get_unfold_index_signs(int x, int n){

		int n1 = n>>1;

		int segm = x / n1;

		x = x % n1;

		int [] is2  = new int[3]; 

		switch (segm){

		case 0: is2[0] =  x + n1;     is2[1]=  1; is2[2] =  1; return is2; // return 1+ (x + n1);

		case 1: is2[0] =  n -  x - 1; is2[1]= -1; is2[2] =  1; return is2; // return -(n - x);

		case 2: is2[0] =  n1 - x - 1; is2[1]= -1; is2[2] =  1; return is2; // return -(n1 - x);

		case 3: is2[0] =  x;          is2[1]= -1; is2[2] = -1; return is2; // return -(1 + x);

		}

		return null; //should never happen

	}

	private void set_unfold_2d(int n){ // n - DCT size

		if ((unfold_index != null) && (unfold_index.length == 4*n*n)) return;

		unfold_index = new int[4*n*n];

		unfold_k = new double[4][4*n*n];

		int n2 = 2*n;

		for (int i = 0; i < 2*n; i++ ){

			int [] is2_vert = get_unfold_index_signs(i,n);

			double [] k_vert = {is2_vert[1]*hwindow[(i < n)?i:n2 -i -1], is2_vert[2]*hwindow[(i < n)?i:n2 -i -1]};

			int index_vert = is2_vert[0] * n;

			

			for (int j = 0; j < 2*n; j++ ){

				int [] is2_hor = get_unfold_index_signs(j,n);

				int index_hor = is2_hor[0];

				double [] k_hor = {is2_hor[1] * hwindow[(j < n)?j:n2 -j -1], is2_hor[2] * hwindow[(j < n)?j:n2 -j -1]};

				unfold_index[n2*i+j]=(index_vert+index_hor);

				for (int mode = 0; mode < 4; mode++){

					unfold_k[mode][n2*i+j] = k_vert[(mode>>1) &1]*k_hor[mode &1]; 

				}

				

				if (n < 8) System.out.print(String.format("%4d", unfold_index[n2*i+j]));

				

			}

			if (n < 8) System.out.println();

		}

		if (n < 8) {

			for (int i = 0; i < 2*n; i++ ){

				System.out.println(i+"=>"+get_unfold_index_signs(i,n)[0]+", "+get_unfold_index_signs(i,n)[1]+", "+get_unfold_index_signs(i,n)[2]);

			}

		}

	}	

	

	

	public double [] dttt_iv(double [] x){

	public double [] dttt_iv(double [] x){

		return dttt_iv(x, 0, 1 << (ilog2(x.length)/2)); 

		return dttt_iv(x, 0, 1 << (ilog2(x.length)/2));
@@ -398,11 +474,11 @@ public class DttRad2 { 
	}

	}

	

	

	// Convert 2nx2n overlapping tile to n*n for dct-iv

	// Convert 2nx2n overlapping tile to n*n for dct-iv

	public double [] fold_tile(double [] x) { // x should be 2n*2n

	public double [] fold_tile(double [] x, int mode) { // x should be 2n*2n

		return fold_tile(x, 1 << (ilog2(x.length/4)/2));

		return fold_tile(x, 1 << (ilog2(x.length/4)/2));

	}

	}

	public double [] fold_tile(double [] x, int n) { // x should be 2n*2n

	public double [] fold_tile(double [] x, int n, int mode) { // x should be 2n*2n

		return fold_tile(x,n,this.fold_k);

		return fold_tile(x,n, mode,this.fold_k);

//		double [] y = new double [n*n];

//		double [] y = new double [n*n];

//		for (int i = 0; i<y.length;i++) {

//		for (int i = 0; i<y.length;i++) {

//			y[i] = 0;

//			y[i] = 0;
@@ -416,27 +492,35 @@ public class DttRad2 { 
	public double [] fold_tile(

	public double [] fold_tile(

			double [] x,

			double [] x,

			int n,

			int n,

			double [][] fold_k

			int mode, //////

			double [][][] fold_k

			) { // x should be 2n*2n

			) { // x should be 2n*2n

		double [] y = new double [n*n];

		double [] y = new double [n*n];

		for (int i = 0; i<y.length;i++) {

		for (int i = 0; i<y.length;i++) {

			y[i] = 0;

			y[i] = 0;

			for (int k = 0; k < 4; k++){

			for (int k = 0; k < 4; k++){

				y[i] += x[fold_index[i][k]] * fold_k[i][k];

				y[i] += x[fold_index[i][k]] * fold_k[mode][i][k];

			}

			}

		}

		}

		return y;

		return y;

	}

	}

	

	

	

	

	public double [] unfold_tile(double [] x) { // x should be n*n

	public double [] unfold_tile(

		return unfold_tile(x, 1 << (ilog2(x.length)/2));

			double [] x,  // x should be n*n

			int mode)

	{

		return unfold_tile(x, 1 << (ilog2(x.length)/2), mode);

		

		

	}

	}

	public double [] unfold_tile(double [] x, int n) { // x should be 2n*2n

	public double [] unfold_tile(

			double [] x,  // x should be 2n*2n

			int n,

			int mode) 

	{

		double [] y = new double [4*n*n];

		double [] y = new double [4*n*n];

		for (int i = 0; i<y.length;i++) {

		for (int i = 0; i<y.length;i++) {

			y[i] = unfold_k[i]* x[unfold_index[i]];

			y[i] = unfold_k[mode][i]* x[unfold_index[i]];

		}

		}

		return y;

		return y;

	}

	}

src/main/java/EyesisCorrectionParameters.java

+58 −0
Original line number Original line Diff line number Diff line
@@ -1766,6 +1766,64 @@ public class EyesisCorrectionParameters { 
  			this.addBottom=Integer.parseInt(properties.getProperty(prefix+"addBottom"));

  			this.addBottom=Integer.parseInt(properties.getProperty(prefix+"addBottom"));

  		}

  		}

  	}

  	}

    public static class CLTParameters {

  		public int transform_size =    8; //

  		public int clt_window =        1; // currently only 3 types of windows - 0 (none), 1 and 2

  		public double     shift_x =  0.0;

  		public double     shift_y =  0.0;

  		public int        iclt_mask = 15; // which transforms to combine

  		public int        tileX =    258; // number of kernel tile (0..163) 

  		public int        tileY =    133; // number of kernel tile (0..122)

  		public int        dbg_mode =   0;  // 0 - normal, +1 - no DCT/IDCT

  		

  		public CLTParameters(){}

  		public void setProperties(String prefix,Properties properties){

  			properties.setProperty(prefix+"transform_size",this.transform_size+"");

  			properties.setProperty(prefix+"clt_window",    this.clt_window+"");

  			properties.setProperty(prefix+"shift_x",       this.shift_x+"");

  			properties.setProperty(prefix+"shift_y",       this.shift_y+"");

  			properties.setProperty(prefix+"iclt_mask",     this.iclt_mask+"");

  			properties.setProperty(prefix+"tileX",         this.tileX+"");

  			properties.setProperty(prefix+"tileY",         this.tileY+"");

  			properties.setProperty(prefix+"dbg_mode",      this.dbg_mode+"");

  		}

  		public void getProperties(String prefix,Properties properties){

  			if (properties.getProperty(prefix+"transform_size")!=null) this.transform_size=Integer.parseInt(properties.getProperty(prefix+"transform_size"));

  			if (properties.getProperty(prefix+"clt_window")!=null)     this.clt_window=Integer.parseInt(properties.getProperty(prefix+"clt_window"));

  			if (properties.getProperty(prefix+"shift_x")!=null)        this.shift_x=Double.parseDouble(properties.getProperty(prefix+"shift_x"));

  			if (properties.getProperty(prefix+"shift_y")!=null)        this.shift_y=Double.parseDouble(properties.getProperty(prefix+"shift_y"));

  			if (properties.getProperty(prefix+"iclt_mask")!=null)      this.iclt_mask=Integer.parseInt(properties.getProperty(prefix+"iclt_mask"));

  			if (properties.getProperty(prefix+"tileX")!=null)          this.tileX=Integer.parseInt(properties.getProperty(prefix+"tileX"));

  			if (properties.getProperty(prefix+"tileY")!=null)          this.tileY=Integer.parseInt(properties.getProperty(prefix+"tileY"));

  			if (properties.getProperty(prefix+"dbg_mode")!=null)       this.dbg_mode=Integer.parseInt(properties.getProperty(prefix+"dbg_mode"));

  		}

  		public boolean showDialog() {

  			GenericDialog gd = new GenericDialog("Set DCT parameters");

  			gd.addNumericField("DCT size",                                                       this.transform_size,            0);

  			gd.addNumericField("Lapped transform window type (0- rectangular, 1 - sinus)",       this.clt_window,                0);

   			gd.addNumericField("shift_x",                                                        this.shift_x,                   4);

   			gd.addNumericField("shift_y",                                                        this.shift_y,                   4);

  			gd.addNumericField("Bit mask - which of 4 transforms to combine after iclt",         this.iclt_mask,                 0);

  			gd.addNumericField("Tile X to extract (0..163)",                                     this.tileX,                     0);

  			gd.addNumericField("Tile Y to extract (0..122)",                                     this.tileY,                     0);

  			gd.addNumericField("dbg_mode: 0 - normal, +1 - no DCT/IDCT, just fold",              this.dbg_mode,                  0);



  			WindowTools.addScrollBars(gd);

  			gd.showDialog();

  			

  			if (gd.wasCanceled()) return false;

  			this.transform_size=        (int) gd.getNextNumber();

  			this.clt_window=            (int) gd.getNextNumber();

  			this.shift_x =                    gd.getNextNumber();

  			this.shift_y =                    gd.getNextNumber();

  			this.iclt_mask=             (int) gd.getNextNumber();

  			this.tileX=                 (int) gd.getNextNumber();

  			this.tileY=                 (int) gd.getNextNumber();

  			this.dbg_mode=                 (int) gd.getNextNumber();

  			return true;

  		}

    }



    public static class DCTParameters {

    public static class DCTParameters {

  		public int dct_size =            8; //

  		public int dct_size =            8; //

  		public int asym_size =          15; //

  		public int asym_size =          15; //

src/main/java/Eyesis_Correction.java

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src/main/java/ImageDtt.java

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