Created
November 12, 2018 18:51
-
-
Save peterhellberg/e6106b92bf17dbdd61d0c74801d4b8c1 to your computer and use it in GitHub Desktop.
16 bit gray scale image in Go
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package main | |
import ( | |
"image" | |
"image/color" | |
"image/png" | |
"os" | |
) | |
func main() { | |
w, h := 1200, 600 | |
g := image.NewGray16(image.Rect(0, 0, w, h)) | |
for x := 0; x < w; x++ { | |
for y := 0; y < h; y++ { | |
g.SetGray16(x, y, color.Gray16{uint16(x * y)}) | |
} | |
} | |
if err := savePNG("/tmp/g16.png", g); err != nil { | |
panic(err) | |
} | |
} | |
func savePNG(fn string, m image.Image) error { | |
f, err := os.Create(fn) | |
if err != nil { | |
return err | |
} | |
defer f.Close() | |
return png.Encode(f, m) | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
How an 8 bit gray scale image would look in comparison