i'm getting some errors while executing this coading probably in line no 10,28,and 30.

if true
  % code
end
clc;
clear all;
close all;
warning off all;

%% Reading Input Video

[filen,pathn]=uigetfile('*.avi','select the avifile','avi'); avi = aviread(filen); frames = {avi.cdata}; a = mmreader([pathn,filen]); vidFrames = read(a); numFrames = get(a,'numberOfFrames'); figure;

%% Frame Extraction

for i=1:length(frames) imshow(frames{i},[]) imwrite(frames{i},['frames/' num2str(i) '.jpg']); pause(0.05) end;

%% Frame Diffrencing

for i = 1:numFrames mov(i).cdata = vidFrames(:,:,:,i); aa = imresize(mov(i).cdata,[256,256]); a1{i} = aa; pause(0.005); end j=1;

for i =1:numFrames-1 a = a1{i}; R1 = a(:,:,1); G1 = a(:,:,2); B1 = a(:,:,3); b = a1{i+1}; R2 = b(:,:,1); G2 = b(:,:,2); B2 = b(:,:,3); D1 = imabsdiff(R1,R2); D2 = imabsdiff(G1,G2); D3 = imabsdiff(B1,B2); D = round(D1+D2+D3); for i2 = 1:size(R1,1) for j2 = 1:size(R1,2) if D(i2,j2)<11 if (R1(i2,j2)<R2(i2,j2)) R1(i2,j2) = R1(i2,j2)+1; else R1(i2,j2) = R1(i2,j2)-1; end if (G1(i2,j2)< G2(i2,j2)) G1(i2,j2) = G1(i2,j2)+1; else G1(i2,j2) = G1(i2,j2)-1; end if (B1(i2,j2)< B2(i2,j2)) B1(i2,j2) = B1(i2,j2)+1; else B1(i2,j2) = B1(i2,j2)-1; end else R1(i2,j2) = R2(i2,j2); G1(i2,j2) = G2(i2,j2); B1(i2,j2) = B2(i2,j2); end end end a(:,:,1) = R1; a(:,:,2) = G1; a(:,:,3) = B1 ; frames{i+1} = a; imshow(D,[]); title('Background Subtracted result'); pause(0.005); end

[Stephen23]

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