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31 lines
632 B
Go
31 lines
632 B
Go
package resize
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import (
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"bytes"
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"fmt"
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"github.com/nfnt/resize"
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i "image"
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"image/jpeg"
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_ "image/png"
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)
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func Shrink(image string, maxSize uint, quality int) (string, error) {
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if quality < 1 || quality > 100 {
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return "", fmt.Errorf("quality must be between 1 and 100, got %d", quality)
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}
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img, _, err := i.Decode(bytes.NewReader([]byte(image)))
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if err != nil {
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return "", err
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}
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resizedImg := resize.Thumbnail(maxSize, maxSize, img, resize.Lanczos3)
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var buffer bytes.Buffer
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err = jpeg.Encode(&buffer, resizedImg, &jpeg.Options{Quality: quality})
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if err != nil {
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return "", err
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}
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return buffer.String(), nil
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}
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