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Resize multiple images with Caire.
package main
import (
"fmt"
"log"
"math/rand"
"os"
"runtime"
"strconv"
"time"
"github.com/esimov/caire"
)
func main() {
// Below is an example of using our PrintMemUsage() function
// Print our starting memory usage (should be around 0mb)
PrintMemUsage()
files := []string{"waterfall.png", "sample-image.jpeg", "lighthouse.jpg", "landscape.jpg"}
for _, filename := range files {
f, err := os.OpenFile("../caire/input/"+filename, os.O_RDWR, 0666)
if err != nil {
log.Println("Read file error:", err.Error())
log.Println(filename)
return
}
f_write, err := os.OpenFile("file_"+strconv.Itoa(rand.Int())+".jpg", os.O_RDWR|os.O_CREATE, 0666)
if err != nil {
log.Fatal("Read file error:", err.Error())
}
p := &caire.Processor{
NewWidth: 300,
Percentage: false,
Square: true,
}
err = p.Process(f, f_write)
if err != nil {
log.Println("Failed to apply seam carving to the image", err.Error())
return
}
f.Close()
f_write.Close()
// Print our memory usage at each interval
PrintMemUsage()
runtime.GC()
PrintMemUsage()
fmt.Println("=============================")
time.Sleep(time.Second)
}
}
// PrintMemUsage outputs the current, total and OS memory being used. As well as the number
// of garage collection cycles completed.
func PrintMemUsage() {
var m runtime.MemStats
runtime.ReadMemStats(&m)
// For info on each, see: https://golang.org/pkg/runtime/#MemStats
fmt.Printf("Alloc = %v MiB", bToMb(m.Alloc))
fmt.Printf("\tTotalAlloc = %v MiB", bToMb(m.TotalAlloc))
fmt.Printf("\tSys = %v MiB", bToMb(m.Sys))
fmt.Printf("\tNumGC = %v\n", m.NumGC)
}
func bToMb(b uint64) uint64 {
return b / 1024 / 1024
}
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