How to flip or mirror an image horizontally or vertically in Go?

To flip or mirror an image horizontally or vertically in Go, you can use the github.com/disintegration/imaging library. Here's an example of how to do it:

1. Install the imaging library by running the following command in your terminal:

   go get -u github.com/disintegration/imaging

2. Import the imaging package in your Go file:

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

3. Load the image from a file using imaging.Open("path/to/image.jpg"):

   img, err := imaging.Open("path/to/image.jpg") if err != nil { // handle error }

4. To horizontally flip the image, use the imaging.FlipH(img) function:

   flippedHorizontally := imaging.FlipH(img)

5. To vertically flip the image, use the imaging.FlipV(img) function:

   flippedVertically := imaging.FlipV(img)

6. Save the flipped images to a file using imaging.Save(flippedImage, "path/to/output.jpg"):

   err = imaging.Save(flippedHorizontally, "path/to/output_h.jpg") if err != nil { // handle error } err = imaging.Save(flippedVertically, "path/to/output_v.jpg") if err != nil { // handle error }

Make sure to replace "path/to/image.jpg", "path/to/output_h.jpg", and "path/to/output_v.jpg" with the appropriate file paths.

That's it! You have successfully flipped or mirrored an image horizontally or vertically in Go using the imaging library.