matlab ：找到某个元素并返回该元素的位置(行列数)

qq_34549571: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %=====ABSTRACT===== % translate MP4 file to images. cause the appearance of block artifact, the % frames of mp4 file will undergo down-sampling and gaussian filter before % saved as images % %=====AUTHOR:dp===== % %=====DATE:151117===== %change something By GQMay %=====Date:210409===== %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %把想转换视频新建一个文件夹，最后图片也会存储在里面 clc clear close all xyloObj = VideoReader('e3e2ca2facd7c90395a4927f7adcf175.mp4');%你想转换的视频名 nFrames = xyloObj.NumFrames;%帧数 vidHeight = xyloObj.Height;%高 vidWidth = xyloObj.Width;%宽 %因为如果每一帧都读取的话照片会出现重复，我每间隔15帧保存一张照片 for k = 1 :15: nFrames im = read(xyloObj, k);%读取第k帧，存入im中 imwrite(im, ['original_frame',num2str(k),'.bmp'], 'bmp');%把im存储成图片，并且存储的文件名根据序号改变 end [code=plain] [/code]

菜鸟本菜。: 帧图片都存在哪了，我没找到

qq_34893973: 有用，谢谢

东 木: 你好 能不能讲讲代码的意思啊

澎湖湾的老船长: 非常感谢