GIF support about imaging HOT 6 CLOSED

@ernsheong The support for GIF format in Save function mentioned here was added in 2014 (c317ebd)

from imaging.

Hi,
Thank you!

What kind of gif support do you need? You can use imaging.Open to load a gif image. But you cannot use imaging.Save to save to gif file. The reason for this is that the GIF encoding was introduced in standard library with Go 1.2. And I want to keep the library compatible with older Go versions.

If you use Go version >= 1.2 you can use the standard image/gif package to save to gif format. For example (not tested):

import (
    "image/gif"
    "os"
)

func SaveGIF(img image.Image, filename string) (err error) {
    file, err := os.Create(filename)
    if err != nil {
        return
    }
    defer file.Close()
    err = gif.Encode(file, img, &gif.Options{NumColors: 256})
    return
}

from imaging.

Your example code is very helpful.
Thank you so much for your awesome support. :)

from imaging.

just wondering.. but whats the point of trying to be compatible to Go versions < 1.2 .. ?

from imaging.

To not break other people's code that depends on this library. Saving GIFs can be implemented with just a few lines of code if needed.

from imaging.

Is this argument still valid? It is 2019.

from imaging.