How to apply color correction and adjustment to an image in Go?

To apply color correction and adjustment to an image in Go, you can use the github.com/disintegration/imaging package. Here's an example of how you can do it:

Install the imaging package by running the following command:

go get -u github.com/disintegration/imaging

Import the necessary packages in your Go code:

import (
	"github.com/disintegration/imaging"
	"image"
	"image/color"
)

Load your image file into a Go image.Image object:

srcImage, err := imaging.Open("path/to/your/image.jpg")
if err != nil {
    log.Fatal(err)
}

Apply color correction or adjustments to the image using the provided functions from the imaging package. For example, you can apply a sepia filter:

sepiaImage := imaging.AdjustFunc(srcImage, func(c color.NRGBA) color.NRGBA {
    return color.NRGBA{
        R: uint8(float64(c.R)*0.393 + float64(c.G)*0.769 + float64(c.B)*0.189),
        G: uint8(float64(c.R)*0.349 + float64(c.G)*0.686 + float64(c.B)*0.168),
        B: uint8(float64(c.R)*0.272 + float64(c.G)*0.534 + float64(c.B)*0.131),
        A: c.A,
    }
})

Save the modified image to a file:

err = imaging.Save(sepiaImage, "path/to/save/sepia_image.jpg")
if err != nil {
    log.Fatal(err)
}

You can explore other functions provided by the imaging package to perform various color correction and adjustments, such as changing brightness, contrast, saturation, etc.