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extract_roi_with_compress_1.m
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extract_roi_with_compress_1.m
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function [motion,mov_mat,vid_time_ch]=extract_roi_with_compress_1(path,file)
global sensitivity
tic;
A = exist('temp_data','dir');
if(A==0)
mkdir('temp_data')
end
global FFMPEG
global FFPROBE
if ismac
FFMPEG = 'ffmpeg-latest-win64-static/mac/ffmpeg';
elseif isunix
FFMPEG = 'ffmpeg-latest-win64-static/mac/ffmpeg';
elseif ispc
FFMPEG = 'ffmpeg-latest-win64-static\ffmpeg-20160512-git-cd244fa-win64-static\bin\ffmpeg.exe';
FFPROBE = 'ffmpeg-latest-win64-static\ffmpeg-20160512-git-cd244fa-win64-static\bin\ffprobe.exe';
else
disp('Platform not supported')
end
mov_mat{1,1}=[];
motion=0;
file_name=[path file];
%////////////////////////////////////////////////////////////////
vid_name1=file_name;
vid_name2=vid_name1;
vid_name2=strcat(file(1:end-4),'.avi')
ffmpeg_cmd = [FFMPEG ' -y -i ' vid_name1 ' -r 24 ' vid_name2];
system(ffmpeg_cmd);
copyfile(vid_name2, './temp_data/')
obj = VideoReader(vid_name2);
nframes = get(obj, 'NumberOfFrames');
freq=obj.FrameRate;
video_time=round(nframes/freq);
vid_time_ch=compute_time_1(video_time);
img_b = read(obj, 1);
a=size(img_b);
new_r=round(a(1)/4);
new_c=round(a(2)/4);
img_b=imresize(img_b,[new_r new_c]);
if(length(a)>2)
img_b=rgb2gray(img_b);
end
img=double(img_b);
%////////////// calculating moving area /////////////////////
display_status='of';
th=20;
img_l=img;
last_mov_frame=0;
mov_frames=0;
non_mov_flag=0;
m_flag=0;
total_mov_time=0;
qq=1;
wait_count=0;
dis_count=0;
fig_flag=0;
h1 = waitbar(0,'Processing Files...');
h = waitbar(0,'Please wait...');
for k = 2 : 4 : nframes
waitbar(k/nframes,h);
img_o=read(obj, k);
img_o=imresize(img_o,[new_r new_c]);
img_oo=img_o;
a=size(img_o);
if(length(a)>2)
img_o=rgb2gray(img_o);
end
col_1=img_o(:);
col_m=mean(col_1(:));
if(col_m<5)
motion=2;
mov_mat=[];
if(fig_flag==1)
close(fig)
end
close(h1);
return
end
d=abs(double(img_l) - double(img_o));
d=d>th;
d=bwareaopen(d,10);
d=imfill(d,'holes');
se=strel('disk',3);
d=imdilate(d,se);
s=round((1-(sensitivity/100))*200);
d=bwareaopen(d,s);
[r,c]=find(d==1);
rec_flag=0;
if ~(isempty(r))
[lab,num]=bwlabel(d);
for i=1:num
[r,c]=find(lab==i);
pt_1(i,:)=[min(c) min(r)];
len(i,1)=max(r)-min(r);
br(i,1)=max(c)-min(c);
rec_flag=1;
end
mov_frames=mov_frames + 1;
non_mov_flag=0;
if(mov_frames==1)
last_mov_frame=k/4;
end
m_flag=1;
else
if(m_flag==1)
non_mov_flag=non_mov_flag + 1;
if(non_mov_flag>200 || k==nframes)
m_flag=0;
final_mov_frame=(k-(non_mov_flag))/4;
mov_frames=0;
mov_time=final_mov_frame - last_mov_frame;
video_time_1=round(last_mov_frame/freq);
video_time_2=round(final_mov_frame/freq);
video_time_3=round(mov_time/freq);
total_mov_time=total_mov_time + video_time_3 + 1;
vid_time_ch_1=compute_time_1(video_time_1);
vid_time_ch_2=compute_time_1(video_time_2);
vid_time_ch_3=compute_time_1(video_time_3);
%display(strcat('from:',vid_time_ch_1,'to:',vid_time_ch_2,'duration:',vid_time_ch_3));
mov_mat{qq,1}=last_mov_frame;
mov_mat{qq,2}=final_mov_frame;
mov_mat{qq,3}=vid_time_ch_1;
mov_mat{qq,4}=vid_time_ch_2;
mov_mat{qq,5}=vid_time_ch_3;
qq=qq+1;
end
end
end
if(strcmp(display_status,'on'))
dis_count=dis_count+1;
if(rec_flag==1 && dis_count>50)
dis_count=0;
figure(2)
fig = get(groot,'CurrentFigure');
subplot(1,2,1)
imshow(img_oo);
hold on
for i=1:size(pt_1,1)
rectangle('Position',[pt_1(i,:) br(i,1) len(i,1)],'EdgeColor','g');
end
hold off
title(strcat('frame:',num2str(k/4)));
subplot(1,2,2)
imshow(d);
title('ROI binary')
drawnow
fig_flag=1;
end
end
img_l=img_o;
if(rec_flag==1)
motion=1;
end
clear pt_1 len br
end
if(total_mov_time/qq<=2)
motion=0;
end
total_mov_time=compute_time_1(total_mov_time-1);
mov_mat{1,6}=total_mov_time;
mov_mat{1,7}=nframes;
mov_mat{1,8}=freq;
if(fig_flag==1)
close(fig)
end
close(h1);
toc
close(h);
end
%////////////// calculating moving area /////////////////////
% tic
% col_m=0;
% n = 0;
% current_mot=read(obj, 2);
% current_mot=current_mot(:);
% prev_mot = current_mot;
%
% for k = 2 : freq : nframes
% img_o=read(obj, k);
% img_o=imresize(img_o,[new_r new_c]);
% % img_stdev = std2(img_o);
% % col_m=mean(img_o(:))
% % col_m = col_m + img_stdev;
% % comp_mot_new = abs(currecnt_mot - prev_mot);
%
% col_m=img_o(:);
% current_mot = col_m;
%
% mot_change = corr2(current_mot,prev_mot);
%
% if mot_change <1
% n = n + 1;
% end
%
% prev_mot = current_mot;
%
%
% end
% motion_time_total = (n * freq)/60;
% disp(['Total time in which there was motion: ' motion_time_total 'minutes']);
% toc;