MATLAB Program for Reading AVI Files

In this article, we will discuss how to read AVI files using MATLAB. Reading AVI files is an essential skill for video data analysis and processing. Although MATLAB requires code implementation for AVI file reading, we will provide clear, step-by-step guidance to simplify the process. First, let's understand AVI files. AVI (Audio Video Interleave) is a multimedia container format developed by Microsoft, widely used in Windows systems for storing synchronized audio and video data. In MATLAB, we use the VideoReader function to access AVI files. This function enables frame-by-frame video analysis and processing through object-oriented programming. Now, let's explore the detailed implementation using the VideoReader function. The first step involves loading the AVI file into MATLAB's workspace. You can use either the uigetfile function for interactive file selection or the dir function to programmatically obtain the AVI file path. Once the file path is acquired, initialize the VideoReader object as shown in this code example: filename = 'example.avi'; v = VideoReader(filename); After successfully reading the AVI file, you can perform various processing operations. The read method extracts individual video frames for analysis, while object properties provide essential video metadata: NumberOfFrames returns the total frame count, Height and Width properties give the video resolution, and FrameRate indicates the playback speed in frames per second. This article has covered fundamental AVI file reading techniques in MATLAB, including file loading, VideoReader implementation, and basic video data processing. For advanced applications, we can further explore topics like video compression handling, real-time processing, and computer vision integration.