I currently have two scripts. One that plots luminescence of a pixel in a video over time and another that horizontally merges two videos. The first video is an original video and the second is the same video that has been previously processed. I wanted to insert the luminescence variable over the second video in the comparison video, in the bottom right hand corner. I think I may have gotten lost somewhere though:
close all
clc
clear
vid1 = VideoReader('original.avi');
vid2 = VideoReader('result.avi');
videoPlayer = vision.VideoPlayer;
row = vid2.Height/3;
col = vid2.Width/2;
outputVideo = VideoWriter('comparison.avi');
outputVideo.FrameRate = vid1.FrameRate;
open(outputVideo);
while hasFrame(vid1) && hasFrame(vid2)
result_vid = readFrame(vid2);
r = result_vid(row, col, 1);
g = result_vid(row, col, 2);
b = result_vid(row, col, 3);
lum = 0.2126 * r + 0.7152 * g + 0.0722 * b;
L = [L lum];
text_str = L;
position = [vid2.Width 10];
original_vid = readFrame(vid1);
imgt = horzcat(original_vid, result_vid);
plot(L)
ylim auto
xlim([0 600]);
% play video
step(videoPlayer, imgt);
RGB = insertText(imgt,position,text_str);
% record new video
writeVideo(outputVideo, imgt);
end
release(videoPlayer);
close(outputVideo);
Any help would be great!