respue_lineal

PURPOSE ^

RESPUE_LINEAL calculates the linear response to local DCT2D

SYNOPSIS ^

function [R,CSF2D]=respue_lineal(dctinic,k1)

DESCRIPTION ^

 RESPUE_LINEAL calculates the linear response to local DCT2D
 (Expressed in contrast)

 DCTN (f) = CSF (f) DCT (f)

 Inputs:
 CSF (only frequency dependent, i.e. as in naka100.m)

 Returns:

 The response, Resp
 The CSF parameter in matrix form, CSF2D

 NOTE: It is assumed that the block gets into the function is already expressed in
 contrast (see CONTRAST)

 USE:
 [Resp,CSF2D]=respue_lineal(dctinic,CSF)

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 %
0002 % RESPUE_LINEAL calculates the linear response to local DCT2D
0003 % (Expressed in contrast)
0004 %
0005 % DCTN (f) = CSF (f) DCT (f)
0006 %
0007 % Inputs:
0008 % CSF (only frequency dependent, i.e. as in naka100.m)
0009 %
0010 % Returns:
0011 %
0012 % The response, Resp
0013 % The CSF parameter in matrix form, CSF2D
0014 %
0015 % NOTE: It is assumed that the block gets into the function is already expressed in
0016 % contrast (see CONTRAST)
0017 %
0018 % USE:
0019 % [Resp,CSF2D]=respue_lineal(dctinic,CSF)
0020 
0021 function [R,CSF2D]=respue_lineal(dctinic,k1)
0022 
0023 tam=size(dctinic);
0024 tam=tam(1);
0025 lados=[tam tam];
0026 
0027 lcuan=lados(1);
0028 
0029 k1=simrev(k1);
0030 k1=zigzag(k1);
0031 
0032 alfa=k1;
0033 
0034 cub=dctinic;
0035 
0036 cub=zigzag(cub);
0037 
0038 cub=abs(cub);
0039 
0040 R=k1.*cub;
0041 R(1)=sqrt(cub(1));
0042 
0043 R=dezigzag(R);
0044 
0045 CSF2D=k1;

Generated on Fri 07-Mar-2014 13:29:20 by m2html © 2005