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Ejercicio4.go
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Ejercicio4.go
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package main
import (
"fmt"
"image"
"image/color"
_ "image/jpeg"
_ "image/png"
"log"
"math"
"os"
"time"
)
func main() {
file, err := os.Open("03.png")
if err != nil {
log.Fatalln(err)
}
defer file.Close()
img, _, err := image.Decode(file)
if err != nil {
log.Fatalln(err)
}
imgSize := img.Bounds().Size()
var redSum float64
var greenSum float64
var blueSum float64
start := time.Now()
for y := 0; y < imgSize.Y; y++ {
for x := 0; x < imgSize.X; x++ {
pixel := img.At(x, y)
col := color.RGBAModel.Convert(pixel).(color.RGBA)
redSum += float64(col.R)
greenSum += float64(col.G)
blueSum += float64(col.B)
}
}
imgArea := float64(imgSize.X * imgSize.Y)
redAverage := math.Round(redSum / imgArea)
greenAverage := math.Round(greenSum / imgArea)
blueAverage := math.Round(blueSum / imgArea)
elapsed := time.Since(start)
fmt.Printf("Ejercicio 4 Solución Normal:")
log.Printf("Tiempo de ejecucion: %s", elapsed)
fmt.Printf("Promedio de color: r %.0f, g %.0f, b %.0f)", redAverage, greenAverage, blueAverage)
}