47 lines
821 B
Go
47 lines
821 B
Go
package draw2dimg
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import (
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"bufio"
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"image"
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"image/png"
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"os"
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)
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// SaveToPngFile create and save an image to a file using PNG format
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func SaveToPngFile(filePath string, m image.Image) error {
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// Create the file
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f, err := os.Create(filePath)
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if err != nil {
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return err
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}
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defer f.Close()
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// Create Writer from file
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b := bufio.NewWriter(f)
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// Write the image into the buffer
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err = png.Encode(b, m)
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if err != nil {
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return err
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}
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err = b.Flush()
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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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// LoadFromPngFile Open a png file
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func LoadFromPngFile(filePath string) (image.Image, error) {
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// Open file
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f, err := os.OpenFile(filePath, 0, 0)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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b := bufio.NewReader(f)
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img, err := png.Decode(b)
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if err != nil {
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return nil, err
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}
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return img, nil
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}
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