Example of golang image image processing

The example of this article describes the golang image image processing method. I will share it with you for your reference as follows:

golang is quite simple to process pictures, I am quite simple to function without a thumbnail method.

package main

import (

    "fmt"

    "os"

    "image"

    "image/color"

    "image/draw"

    "image/jpeg"

)

func main() {

    f1, err := os.Open("1.jpg")

    if err != nil {

        panic(err)

    }

    defer f1.Close()

    f2, err := os.Open("2.jpg")

    if err != nil {

        panic(err)

    }

    defer f2.Close()

    f3, err := os.Create("3.jpg")

    if err != nil {

        panic(err)

    }

    defer f3.Close()

    m1, err := jpeg.Decode(f1)

    if err != nil {

        panic(err)

    }

    bounds := m1.Bounds()

    m2, err := jpeg.Decode(f2)

    if err != nil {

        panic(err)

    }

    m := image.NewRGBA(bounds)

    white := color.RGBA{255, 255, 255, 255}

    draw.Draw(m, bounds, &image.Uniform{white}, image.ZP, draw.Src)

    draw.Draw(m, bounds, m1, image.ZP, draw.Src)

    draw.Draw(m, image.Rect(100, 200, 300, 600), m2, image.Pt(250, 60), draw.Src)

    err = jpeg.Encode(f3, m, &jpeg.Options{90})

    if err != nil {

        panic(err)

    }

    fmt.Printf("ok\n")

}

I hope this article has been helpful to you in the programming of Go language.