mtsatellite/common/image.go

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// Copyright 2014 by Sascha L. Teichmann
// Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.
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package common
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import (
"bufio"
"image"
"image/png"
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"log"
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"os"
)
func SaveAsPNG(path string, img image.Image) (err error) {
var file *os.File
if file, err = os.Create(path); err != nil {
return
}
writer := bufio.NewWriter(file)
err = png.Encode(writer, img)
writer.Flush()
file.Close()
return
}
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func LoadPNG(path string) image.Image {
var err error
var file *os.File
if file, err = os.Open(path); err != nil {
//log.Printf("WARN: %s", err)
return image.White
}
defer file.Close()
reader := bufio.NewReader(file)
var img image.Image
if img, err = png.Decode(reader); err != nil {
log.Printf("WARN: %s", err)
return image.White
}
return img
}