package image
type Config struct {
ColorModel color.Model
Width, Height int
}
Config holds an image's color model and dimensions.
Golang image.Config type usage example
package main
import (
"fmt"
"image"
"image/png"
"os"
)
func init() {
// without this register .. At(), Bounds() functions will
// caused memory pointer error!!
image.RegisterFormat("png", "png", png.Decode, png.DecodeConfig)
}
func main() {
imgfile, err := os.Open("./img.png")
if err != nil {
fmt.Println("img.png file not found!")
os.Exit(1)
}
defer imgfile.Close()
img, _, err := image.Decode(imgfile)
bounds := img.Bounds()
width := bounds.Max.X
height := bounds.Max.Y
fmt.Println("Width : ", width)
fmt.Println("Height : ", height)
colormodel := img.ColorModel()
ic := image.Config{colormodel, width, height}
//test
fmt.Println(ic.Width) // Width starts with capital letter
}
References :
http://golang.org/pkg/image/#Config
