How to convert multiple pictures to video using Golang

How to use Golang to convert multiple pictures into videos

With the development of the Internet and the popularity of smart devices, video has become an important form of media. Sometimes we may need to convert multiple pictures into videos to show continuous changes in pictures or to create slideshows.

This article will introduce how to use the Golang programming language to convert multiple pictures into videos. Before starting, please make sure you have installed Golang and the related development environment.

Step 1: Import related packages
First, we need to import some related Golang packages to help us process images and videos. The specific code is as follows:

package main

import (
    "fmt"
    "image"
    "image/color"
    "image/draw"
    "image/jpeg"
    "os"
    "path/filepath"
    "time"

    "gocv.io/x/gocv"
)

func main() {
    // 代码省略...
}

In the above code, we imported image, image/color, image/draw and Image/jpeg and other image-related packages, as well as the gocv package, which is a Golang package for computer vision.

Step 2: Convert Pictures to Videos
Next, we need to convert multiple pictures to videos. We can loop through each picture in the pictures folder and add them to a video. The specific code is as follows:

func imagesToVideo(imagesPath string, videoPath string) {
    files, _ := filepath.Glob(imagesPath + "/*.jpg")

    img := image.NewRGBA(image.Rect(0, 0, 640, 480))
    for _, file := range files {
        imgFile, _ := os.Open(file)
        defer imgFile.Close()

        src, _ := jpeg.Decode(imgFile)
        draw.Draw(img, img.Bounds(), src, image.ZP, draw.Src)

        gocv.IMWrite(videoPath, img)

        time.Sleep(time.Second)
    }
}

In the above code, imagesPath is the folder path where pictures are stored, and videoPath is the saving path of video files. We first use the filepath.Glob function to obtain all the image files with the .jpg suffix in the image folder. We then loop through these image files, reading them individually and adding them to an image frame. Finally, use the gocv.IMWrite function to write the image frames to the video file, and use the time.Sleep function to add an appropriate delay to ensure that the video can be generated smoothly.

Step 3: Write the main function
Finally, we need to write a main function to call the above function for converting pictures into videos. The specific code is as follows:

func main() {
    imagesPath := "path/to/images"
    videoPath := "path/to/video.mp4"

    imagesToVideo(imagesPath, videoPath)

    fmt.Println("Video created successfully!")
}

In the above code, imagesPath is the folder path where pictures are stored, and videoPath is the saving path of video files. We convert pictures into videos by calling the imagesToVideo function. Finally, we output a prompt message indicating that the video has been successfully generated.

Compile and Run
After completing the above code, we can use the go build command to compile the code into an executable file. Then, run the generated executable file to complete the process of converting multiple pictures into videos.

Summary
This article introduces how to use Golang to convert multiple pictures into videos. By importing the relevant Golang package and writing the corresponding code, we can realize the function of converting pictures into videos. Hope this article is helpful to you!

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