goimagehash/_examples/load_and_dump.go
Dong-hee Na 84eb1859d0
imagehash: Add new serialization API dump/load. (#24)
Create a new APIs for serializing purpose which can use
standard io.Reader/io.Writer APIs.

ToString() API will be remain for debugging purpose and
ExtImageHashFromString, ImageHashFromString will be removed after next
version.

- New APIs are added: LoadExtImageHash, LoadImageHash, xxxHash.Dump
- These APIs are deprecated: ExtImageHashFromString, ImageHashFromString
2019-03-17 11:34:56 +09:00

44 lines
1.0 KiB
Go

package main
import (
"bufio"
"bytes"
"fmt"
"github.com/corona10/goimagehash"
"image/jpeg"
"os"
)
func main() {
file1, _ := os.Open("sample1.jpg")
file2, _ := os.Open("sample2.jpg")
defer file1.Close()
defer file2.Close()
var b bytes.Buffer
foo := bufio.NewWriter(&b)
img1, _ := jpeg.Decode(file1)
img2, _ := jpeg.Decode(file2)
hash1, _ := goimagehash.AverageHashExtend(img1, 15)
hash2, _ := goimagehash.AverageHashExtend(img2, 15)
distance, _ := hash1.Distance(hash2)
fmt.Printf("Distance between images: %v\n", distance)
err := hash1.Dump(foo)
if err != nil {
fmt.Println(err)
}
foo.Flush()
bar := bufio.NewReader(&b)
hash3, err := goimagehash.LoadImageHashExtend(bar)
if err != nil {
fmt.Println(err)
}
distance, _ = hash1.Distance(hash3)
fmt.Printf("Distance between hash1 and hash3: %v\n", distance)
distance, _ = hash2.Distance(hash3)
fmt.Printf("Distance between hash2 and hash3: %v\n", distance)
fmt.Println(hash1.ToString())
fmt.Println(hash2.ToString())
fmt.Println(hash3.ToString())
}