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50 行
857 B
50 行
857 B
package media
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import (
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"image"
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"image/jpeg"
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"os"
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"path"
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"github.com/nfnt/resize"
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)
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func imageSize(name string) (image.Rectangle, error) {
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f, err := os.Open(name)
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if err != nil {
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return image.ZR, err
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}
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defer f.Close()
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cfg, _, err := image.DecodeConfig(f)
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if err != nil {
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return image.ZR, err
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}
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width := cfg.Width
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height := cfg.Height
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return image.Rect(0, 0, width, height), nil
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}
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func ThumbImage(filename string, img image.Image, size image.Rectangle) error {
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os.MkdirAll(path.Dir(filename), 0755)
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fthumb, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0655)
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if err != nil {
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return err
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}
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img = resize.Resize(uint(size.Dx()), uint(size.Dy()), img, resize.Bilinear)
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err = jpeg.Encode(fthumb, img, nil)
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if err != nil {
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return err
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}
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err = fthumb.Close()
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if err != nil {
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return err
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}
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return nil
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}
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