phymat.nico的专栏

matplotlib 绘图_飞龙在天max的博客-优快云博客_matplotlib画图matplotlib画图_weixin_47570444的博客-优快云博客_matplotlib绘图Matplotlib绘图：简单、直接上手_仙女不扎马尾.的博客-优快云博客_matplotlib画图Matplotlib绘图（基础篇）_小羊快学的博客-优快云博客_matplotlib 绘图matplotlib绘图基础_-柚子皮-的博客-优快云博客_matplotlib 画图Matplotlib画图_王轩12的博客

MATLAB作图实例：5：双轴图 - 知乎【MATLAB】进阶绘图 ( 双 y 轴图形 | plotyy 函数 | Histogram 统计图形 | hist 函数 )_韩曙亮的博客-优快云博客https://jingyan.baidu.com/article/ea24bc394492f29b63b33124.html Matlab 绘制双y轴柱状图_yyyyydddd1的博客-优快云博客_matlab双y轴柱状图...

%将一串图片转为视频 vidObj = VideoWriter('output','MPEG-4');open(vidObj);for n = 1:451 path = strcat('jpg/',num2str(n),'.jpg'); f = imread(path); writeVideo(vidObj,f);end% 关闭视频文件close(vidObj);https://blog.youkuaiyun.com/qq_38204686/a.

% convert .mp4 to jpg pictureinput='srcinput.mp4';v = VideoReader(input);i = 1;while 1 if ~hasFrame(v) break; end frame = readFrame(v); temp=strcat('jpg\',num2str(i),'.','jpg'); imwrite(frame,temp); i = i+1;end%end..

说起编程作图，大概还有很多人想起TC的#include 吧？但是各位是否想过，那些画面绚丽的PC游戏是如何编写出来的？就靠TC那可怜的640*480分辨率、16色来做吗？显然是不行的。本帖的目的是让大家放弃TC的老旧图形接口，让大家接触一些新事物。OpenGL作为当前主流的图形API之一，它在一些场合具有比DirectX更优越的特性。1、与C语言紧密结合。OpenGL命令最初就

https://blog.youkuaiyun.com/weixin_38285131/article/details/77719199https://blog.youkuaiyun.com/majinlei121/article/details/50463514https://blog.youkuaiyun.com/l_eop/article/details/81812277

https://blog.youkuaiyun.com/ayouleyang/article/details/104111755https://blog.youkuaiyun.com/qq_38863413/article/details/88074961

https://blog.youkuaiyun.com/u014657795/article/details/78913939https://blog.youkuaiyun.com/weixin_44613063/article/details/107901148

因为工作需要，复现了一篇图像篡改检测的论文参考论文源码实现测试图片输出结果参考资料https://blog.youkuaiyun.com/Maxwave13/article/details/105557649https://blog.youkuaiyun.com/qq_41769892/article/details/106001055...

http://www.mamicode.com/info-detail-2009684.htmlhttps://blog.youkuaiyun.com/majinlei121/article/details/52437461https://www.mathworks.com/help/matlab/ref/imwrite.html

https://www.cnblogs.com/sddai/p/10359536.html

https://blog.youkuaiyun.com/weixin_44132627/article/details/105560989

https://blog.youkuaiyun.com/songzitea/article/details/40832565https://blog.youkuaiyun.com/qq_39475211/article/details/86664284

https://blog.youkuaiyun.com/qq_30387863/article/details/80301996

https://blog.youkuaiyun.com/jizhidexiaoming/article/details/84036665

https://www.cnblogs.com/chenwenyan/p/6836241.html

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https://blog.youkuaiyun.com/leytton/article/details/36385645

1. 从视频中抽取帧ffmpeg -i input.mp4 -r 1-q:v 2 D:\images\img_%02d.jpeg-i 输入视频 -r 提取频率，每秒多少帧，可以为小数 -q:v 图像质量, 2为保存为高质量 最后一个是保存路径2. 从视频中剪切出一段视频ffmpeg -i input.mp4 -ss 00:00:15 -t 00:00:05 D:\video\output.mp4-i 输入视频 -ss 开始切割时间 -t 切割持续时长 最后一个是保存路.

安装virtual-audio-capturer 下载地址 https://github.com/jiao808813/virtual-audio-capture-grabber-device 可以下载源码自己编译，也可下载安装包直接安装 录屏和录音并推流命令行如下 ffmpeg -f gdigrab -i desktop -f dshow -i audio="virtual-audio-capturer" -acodec libmp3lame -vcodec libx264 -..

代码保存下：按时间截取ffmpeg -i ./SN.mp4 -vcodec copy -acodec copy -ss 00:00:00 -to 00:00:05 ./cutout1.mp4 -y按帧数截取ffmpeg -i ./input.mp4 -vf "select=between(n\,20\,200)" -y -acodec copy ./output.mp4

https://blog.youkuaiyun.com/qq_41248872/article/details/93883978

https://blog.youkuaiyun.com/sinat_34156619/article/details/79574505https://www.cnblogs.com/ssyfj/p/9275977.htmlhttps://blog.youkuaiyun.com/purgle/article/details/51925180https://blog.youkuaiyun.com/purgle/article/details/51995250

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https://blog.youkuaiyun.com/princess_rui/article/details/74457820https://www.jianshu.com/p/29f5b3c3b28ehttps://blog.youkuaiyun.com/youmingyu/article/details/53192714https://www.cnblogs.com/idignew/p/7248257.htmlhttps://huangxiaoguo.blog.youkuaiyun.com/article/detail

https://blog.youkuaiyun.com/weixin_41191739/article/details/101210752

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https://www.cnblogs.com/fpzeng/archive/2012/07/26/dts_pts.html

https://www.cnblogs.com/lidabo/p/9020443.html

https://blog.youkuaiyun.com/weixin_39150852/article/details/109156698

https://blog.youkuaiyun.com/muclenerd/article/details/52944438

https://blog.youkuaiyun.com/u012848709/article/details/106064127https://blog.youkuaiyun.com/qq_33456552/article/details/103787429

https://jingyan.baidu.com/article/219f4bf7dbcc8a9f442d38de.html

https://blog.youkuaiyun.com/bixinwei22/article/details/78770090https://youyuyuyou.blog.youkuaiyun.com/article/details/77367481

/*** @projectName 08-01-encode_audio* @brief 音频编码* 从本地读取PCM数据进行AAC编码* 1. 输入PCM格式问题，通过AVCodec的sample_fmts参数获取具体的格式支持* （1）默认的aac编码器输入的PCM格式为:AV_SAMPLE_FMT_FLTP* （2）libfdk_aac编码器输入的PCM格式为AV_SAMPLE_F.