plotf2d.m

Sparse Signal Representation using Overlapping Frames (matlab toolbox)

function  varargout=PlotF2D(F,TransMet,BlkDist,FontSize)
% PlotF2D    Plot the image blocks in frame F, F is size NxK
%            and N is 4, 16, 64 or 256, TransMet must correspond to N
% BlkSize is then given by N (or TransMet), blocks are square.
% Image is made by takeing a sparse W with some few seperated ones, and 
% do the reconstruction process on this W. Each block of this image is
% the the result of only one of the vectors in F.
% Before display these blocks may be seperated by "BlkDist" pixels,
% and blocks corresponding to a certain vector in F may be numbered.
%
% PlotF2D(F,TransMet,BlkDist,FontSize);
% Ir=PlotF2D(F,TransMet,BlkDist,FontSize);
% PlotF2D(eye(64),7,4,8);   % plot the 8x8 DCT basis images
%----------------------------------------------------------------------
% arguments:
%  F         The representation vectors or dictionary, size NxK.
%            if F is scalar and have values 1,2 or 3 we use the initial frames 
%            made by SetF01, SetF02 and SetF03 respectivly.
%  TransMet  An integer for the decomposition method that will be done.
%            Note that this also give the blocksize.
%            This is almost like used in Decom2D
%                1- 4 : NxN identity,    N=[2,4,8,16]
%                5- 8 : NxN DCT,         N=[2,4,8,16]
%                9-12 : 2N*N LOT,        N=[2,4,8,16]
%               13-16 : 4N*N ELT,        N=[2,4,8,16]
%  BlkDist   Distance between each block (in pixels)
%  FontSize  >0 : Display numbers below each block using FontSize
%  Ir        The image that is plotted, (no distance between blocks)
%----------------------------------------------------------------------

%----------------------------------------------------------------------
% Copyright (c) 2000.  Karl Skretting.  All rights reserved.
% Hogskolen in Stavanger (Stavanger University), Signal Processing Group
% Mail:  [e-mail]   Homepage:  http://www.ux.his.no/~karlsk/
% 
% HISTORY:
% Ver. 1.0  18.08.2000  KS: made function
% Ver. 1.1  29.08.2000  KS: changed input (and added output) arguments
% Ver. 1.2  28.10.2001  KS: changed name to PlotF2D, and some minor changes
% Ver. 1.3  27.11.2002  KS: moved from ..\Frames2D to ..\FrameTools
%----------------------------------------------------------------------

% Reorder og Decom2D m