func BuildMosaic(targetUrl, hashtag, clientId string) string {
fmt.Println("Start mosaic...")
sourceImageCount := 1000
tileSize := 20
builder := descriptors.NHistogramBuilder{2, 2}
targetImage, _ := fetcher.GetImage(targetUrl)
myMosaic := NewMosaic(targetImage.Bounds(), tileSize)
myMosaic.FillDescriptions(targetImage, targetImage.Bounds(), builder)
fmt.Println("My Mosaic will be", myMosaic.TilesWide, "x", myMosaic.TilesHigh)
imgMeta := make(chan *fetcher.ImageMetaData, 100)
tiles := make(chan *Tile, 100)
done := make(chan bool)
client := fetcher.NewInstagramClient(clientId)
go client.Search(sourceImageCount, hashtag, imgMeta)
for w := 0; w < 100; w++ {
go TileWorker(w, builder, imgMeta, tiles, done)
}
go Matcher(&myMosaic, tiles, done)
for i := 0; i < sourceImageCount; i++ {
<-done
}
fmt.Println("DONE!")
//file, _ := os.Create("mosaic.html")
//fmt.Fprintf(file, MyMosaic.ToHTML())
return myMosaic.ToHTML(tileSize)
}
func GetTile(b descriptors.DescriptionBuilder, url string) (Tile, error) {
var t Tile
t.Url = url
m, err := fetcher.GetImage(url)
if err != nil {
return t, err
}
t.Description, err = b.GetDescription(m, m.Bounds())
if err != nil {
return t, err
}
return t, nil
}