Matlab實現將影象序列合併為視訊的方法詳解

videoname='VBRPCA_qj';                           % 待生成的視訊檔名
myfilepath='C:UsersxiaomaoDesktopys_hb'     % 待合成的圖片存放路徑，需根據實際修改
 
WriterObj = VideoWriter([videoname,'.avi']);    % 設定待合成的視訊(不僅限於avi格式)名稱
WriterObj.FrameRate = 10;                       % 設定每秒幀數
open(WriterObj);
filepath = dir([myfilepath,'*.jpg']);           % 獲取路徑myfilepath資料夾中所有png的檔案結構體
 
for k = 1:length(filepath)
    frame=imread([filepath(k).folder,'', strcat(num2str(k-1), '.jpg')]); % 遍歷讀取影象，放在變數frame中
    writeVideo(WriterObj,frame); % 將frame放到變數WriterObj中
end
 
close(WriterObj);
fprintf([videoname,'.avi','製作成功n'])

videoname='VBRPCA_qj';                          % 待生成的視訊檔名
myfilepath='D:test'                           % 待合成的圖片存放路徑，需根據實際修改
 
WriterObj = VideoWriter([videoname,'.avi']);    % 設定待合成的視訊(不僅限於avi格式)名稱
WriterObj.FrameRate = 10;                       % 設定每秒幀數
open(WriterObj);
filepath = dir([myfilepath,'*.png']);           % 獲取路徑myfilepath資料夾中所有png的檔案結構體
 
for k = 1:length(filepath)
    frame=imread([filepath(k).folder,'',filepath(k).name]); % 遍歷讀取影象，放在變數frame中
    writeVideo(WriterObj,frame); % 將frame放到變數WriterObj中
end
 
close(WriterObj);
fprintf([videoname,'.avi','製作成功n'])

photos   = cell(3,1);
photos{1} = imread('image1.png');
photos{2} = imread('image2.png');
photos{3} = imread('image3.png');
 
% 建立每秒1幀的視訊檔
videofile = VideoWriter('output.mp4','MPEG-4');
videofile.FrameRate = 1;
 
% 設定每個影象的秒數
secperImg = [2 3 4];
 
% 開啟視訊檔
open(videofile);
% 將幀寫入視訊
for i=1:length(photos)
    % convert the image to a frame
    frame = im2frame(photos{i});
    for v=1:secperImg(i) 
        writeVideo(videofile, frame);
    end
end
% 關閉視訊檔
close(videofile);

fileName = 'MVI_1264_clip.avi';
obj = VideoReader(fileName);
numFrames = obj.NumberOfFrames;% 幀的總數
for k = 1 : numFrames% 讀取資料
    frame = read(obj,k);
    imshow(frame);%顯示幀
    imwrite(frame,strcat(num2str(k),'.jpg'),'jpg');% 儲存幀
end