i am working on Image Compression Using Run Length Encoding
am getting error in scanning in zigzag
the error is as follows
Undefined function or variable ‘toZigzag’.
Error in rlc_haar (line 21)
ImageArray=toZigzag(QuantizedImage);
plese help me
%% Matlab code for Image Compression Using Run Length Encoding
clc;
clear;
close all;
%% Set Quantization Parameter
quantizedvalue=10;
%% Read Input Image
InputImage=imread(‘cameraman.tif’);
[row col p]=size(InputImage);
%% Wavelet Decomposition
[LL LH HL HH]=dwt2(InputImage,’haar’);
WaveletDecomposeImage=[LL,LH;HL,HH];
imshow(WaveletDecomposeImage,[]);
%uniform quantization
QuantizedImage= WaveletDecomposeImage/quantizedvalue;
QuantizedImage= round(QuantizedImage);
% Convert the Two dimensional Image to a one dimensional Array using ZigZag Scanning
ImageArray=toZigzag(QuantizedImage);
%% Run Length Encoding
j=1;
a=length(ImageArray);
count=0;
for n=1:a
b=ImageArray(n);
if n==a
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
elseif ImageArray(n)==ImageArray(n+1)
count=count+1;
elseif ImageArray(n)==b
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
j=j+1;
count=0;
end
end
%% Calculation Bit Cost
InputBitcost=row*col*8;
InputBitcost=(InputBitcost);
c1=length(c);
s1=length(s);
OutputBitcost= (c1*8)+(s1*8);
OutputBitcost=(OutputBitcost);
%% Run Length Decoding g=length(s);
j=1;
l=1;
for i=1:g
v(l)=s(j);
if c(j)~=0
w=l+c(j)-1;
for p=l:w
v(l)=s(j);
l=l+1;
end
end
j=j+1;
end
ReconstructedImageArray=v;
%% Inverse ZigZag
ReconstructedImage=invZigzag(ReconstructedImageArray)
%% Inverse Quantization
ReconstructedImage=ReconstructedImage*quantizedvalue;am getting error in scanning in zigzag
the error is as follows
Undefined function or variable ‘toZigzag’.
Error in rlc_haar (line 21)
ImageArray=toZigzag(QuantizedImage);
plese help me
%% Matlab code for Image Compression Using Run Length Encoding
clc;
clear;
close all;
%% Set Quantization Parameter
quantizedvalue=10;
%% Read Input Image
InputImage=imread(‘cameraman.tif’);
[row col p]=size(InputImage);
%% Wavelet Decomposition
[LL LH HL HH]=dwt2(InputImage,’haar’);
WaveletDecomposeImage=[LL,LH;HL,HH];
imshow(WaveletDecomposeImage,[]);
%uniform quantization
QuantizedImage= WaveletDecomposeImage/quantizedvalue;
QuantizedImage= round(QuantizedImage);
% Convert the Two dimensional Image to a one dimensional Array using ZigZag Scanning
ImageArray=toZigzag(QuantizedImage);
%% Run Length Encoding
j=1;
a=length(ImageArray);
count=0;
for n=1:a
b=ImageArray(n);
if n==a
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
elseif ImageArray(n)==ImageArray(n+1)
count=count+1;
elseif ImageArray(n)==b
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
j=j+1;
count=0;
end
end
%% Calculation Bit Cost
InputBitcost=row*col*8;
InputBitcost=(InputBitcost);
c1=length(c);
s1=length(s);
OutputBitcost= (c1*8)+(s1*8);
OutputBitcost=(OutputBitcost);
%% Run Length Decoding g=length(s);
j=1;
l=1;
for i=1:g
v(l)=s(j);
if c(j)~=0
w=l+c(j)-1;
for p=l:w
v(l)=s(j);
l=l+1;
end
end
j=j+1;
end
ReconstructedImageArray=v;
%% Inverse ZigZag
ReconstructedImage=invZigzag(ReconstructedImageArray)
%% Inverse Quantization
ReconstructedImage=ReconstructedImage*quantizedvalue; am getting error in scanning in zigzag
the error is as follows
Undefined function or variable ‘toZigzag’.
Error in rlc_haar (line 21)
ImageArray=toZigzag(QuantizedImage);
plese help me
%% Matlab code for Image Compression Using Run Length Encoding
clc;
clear;
close all;
%% Set Quantization Parameter
quantizedvalue=10;
%% Read Input Image
InputImage=imread(‘cameraman.tif’);
[row col p]=size(InputImage);
%% Wavelet Decomposition
[LL LH HL HH]=dwt2(InputImage,’haar’);
WaveletDecomposeImage=[LL,LH;HL,HH];
imshow(WaveletDecomposeImage,[]);
%uniform quantization
QuantizedImage= WaveletDecomposeImage/quantizedvalue;
QuantizedImage= round(QuantizedImage);
% Convert the Two dimensional Image to a one dimensional Array using ZigZag Scanning
ImageArray=toZigzag(QuantizedImage);
%% Run Length Encoding
j=1;
a=length(ImageArray);
count=0;
for n=1:a
b=ImageArray(n);
if n==a
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
elseif ImageArray(n)==ImageArray(n+1)
count=count+1;
elseif ImageArray(n)==b
count=count+1;
c(j)=count;
s(j)=ImageArray(n);
j=j+1;
count=0;
end
end
%% Calculation Bit Cost
InputBitcost=row*col*8;
InputBitcost=(InputBitcost);
c1=length(c);
s1=length(s);
OutputBitcost= (c1*8)+(s1*8);
OutputBitcost=(OutputBitcost);
%% Run Length Decoding g=length(s);
j=1;
l=1;
for i=1:g
v(l)=s(j);
if c(j)~=0
w=l+c(j)-1;
for p=l:w
v(l)=s(j);
l=l+1;
end
end
j=j+1;
end
ReconstructedImageArray=v;
%% Inverse ZigZag
ReconstructedImage=invZigzag(ReconstructedImageArray)
%% Inverse Quantization
ReconstructedImage=ReconstructedImage*quantizedvalue; . MATLAB Answers — New Questions
