Golang imaging.Open函数代码示例

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本文整理汇总了Golang中github.com/disintegration/imaging.Open函数的典型用法代码示例。如果您正苦于以下问题：Golang Open函数的具体用法？Golang Open怎么用？Golang Open使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Open函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: main

func main() {
	fmt.Println("ImgNet loading...")
	netSize := []int{3, 3}
	net := NewImgNet(netSize[0], netSize[1])

	imgOrig, err := imaging.Open("lena-colour.png")
	if err != nil {
		panic(err)
	}

	imgFiltered, err := imaging.Open("lena-colourdiff.png")
	if err != nil {
		panic(err)
	}

	targetImg, err := imaging.Open("lena-colour.png")
	if err != nil {
		panic(err)
	}

	fmt.Println("Teaching network.")
	for randcount := 0; randcount < 1000000; randcount++ {
		x := rand.Intn(imgOrig.Bounds().Dx()-netSize[0]) - netSize[0]/2
		y := rand.Intn(imgOrig.Bounds().Dy()-netSize[1]) - netSize[1]/2
		net.FF(image.Pt(x, y), &imgOrig)
		net.BP(image.Pt(x, y), &imgFiltered)
	}

	fmt.Println("Filtering image.")
	result := net.Filter(targetImg)
	imaging.Save(result, "output.png")

}

开发者ID:avesanen，项目名称:neuro，代码行数:33，代码来源:main.go

示例2: openImageWhenReady

func openImageWhenReady(file string) (image.Image, error) {
	// Retry opening the image until err != image.ErrFormat
	// or the next retry would take over a minute.
	// FIXME

	var img image.Image
	var err error
	var retry int
	var t time.Duration

	for {
		t = time.Duration(1000 * (retry * 2))
		time.Sleep(time.Millisecond * t)

		img, err = imaging.Open(file)
		if err == image.ErrFormat {
			retry = retry + 1
			if retry*2 > 60 {
				break
			}
			continue
		}
		break
	}
	return img, err
}

开发者ID:ComSecNinja，项目名称:manikyr，代码行数:26，代码来源:utils.go

示例3: ProcessAvatar

func ProcessAvatar(user *User) error {
	origImg, err := imaging.Open(GetAvatarPath(user, "o"))
	if err != nil {
		return err
	}

	src := imaging.Clone(origImg)

	for _, sz := range AvatarSizes {
		var dst image.Image

		switch sz.Type {
		case "thumbnail":
			dst = imaging.Thumbnail(src, sz.Width, sz.Height, imaging.Lanczos)
		case "fit":
			dst = imaging.Fit(src, sz.Width, sz.Height, imaging.Lanczos)
		}

		err := imaging.Save(dst, GetAvatarPath(user, sz.Suffix))
		if err != nil {
			return err
		}
	}

	return nil
}

开发者ID:postfix，项目名称:quiet-1，代码行数:26，代码来源:processing.go

示例4: thumbFile

func thumbFile(filePath string) {
	src, _ := imaging.Open(filePath)
	var dst *image.NRGBA

	dst = imaging.Thumbnail(src, 48, 48, imaging.CatmullRom)
	imaging.Save(dst, filePath)
}

开发者ID:zeuson，项目名称:gorevel，代码行数:7，代码来源:application.go

示例5: openImage

func openImage(fileName string) image.Image {
	img, err := imaging.Open(testDir + fileName)
	if err != nil {
		log.Fatalln(err)
	}
	return img
}

开发者ID:umahmood，项目名称:perceptive，代码行数:7，代码来源:perceptive_test.go

示例6: editImage

func (p *program) editImage(rot Rot, folder string, list []string) error {
	for _, item := range list {
		filename := filepath.Join(config.FileRoot, folder, item)
		fi, err := os.Stat(filename)
		if err != nil {
			return err
		}
		fullImage, err := imaging.Open(filename)
		if err != nil {
			return err
		}

		switch rot {
		case RotLeft:
			fullImage = imaging.Rotate90(fullImage)
		case RotRight:
			fullImage = imaging.Rotate270(fullImage)
		case RotFlip:
			fullImage = imaging.Rotate180(fullImage)
		default:
			return fmt.Errorf("Unknown rot value: %d", rot)
		}
		err = imaging.Save(fullImage, filename)
		if err != nil {
			return err
		}
		tm := fi.ModTime()
		err = os.Chtimes(filename, tm, tm)
		if err != nil {
			return err
		}
	}
	return p.refreshCache(folder, list)
}

开发者ID:rdterner，项目名称:photoview，代码行数:34，代码来源:editImage.go

示例7: ProcessPhoto

func ProcessPhoto(photo *Photo) error {
	origImg, err := imaging.Open(GetPhotoPath(photo, "o"))
	if err != nil {
		return err
	}

	src := imaging.Clone(origImg)

	for _, sz := range PhotoSizes {
		var dst image.Image

		switch sz.Type {
		case "thumbnail":
			dst = imaging.Thumbnail(src, sz.Width, sz.Height, imaging.Lanczos)
		case "fit":
			dst = imaging.Fit(src, sz.Width, sz.Height, imaging.Lanczos)
		}

		err := imaging.Save(dst, GetPhotoPath(photo, sz.Suffix))
		if err != nil {
			return err
		}
	}

	return nil
}

开发者ID:postfix，项目名称:quiet-1，代码行数:26，代码来源:processing.go

示例8: go_get_image

func (ths *ImageTagServer) go_get_image(w http.ResponseWriter, r *http.Request) {
	path := r.URL.Query().Get("path")
	path = ths.imgRoot + path
	path = strings.Replace(path, "..", "", -1)

	info, infoErr := os.Stat(path)
	if infoErr != nil {
		http.Error(w, infoErr.Error(), http.StatusInternalServerError)
		return
	}

	if info.IsDir() == true {
		http.Error(w, "No an image", http.StatusBadRequest)
		return
	}

	img, err := imaging.Open(path)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "image/jpeg")
	err = imaging.Encode(w, img, imaging.JPEG)
	if err != nil {
		http.Error(w, "Failed to thumbNail image", http.StatusInternalServerError)
		return
	}

}

开发者ID:rasmuswz，项目名称:imagetag，代码行数:30，代码来源:imagetagserver.go

示例9: MakeThumbnail

// 生成缩略图
func MakeThumbnail(fromFile string, w, h int) (image *image.NRGBA, err error) {
	srcImage, err := imaging.Open(fromFile)
	if err != nil {
		return nil, err
	}

	image = imaging.Thumbnail(srcImage, w, h, imaging.Lanczos)
	return
}

开发者ID:netw0rm，项目名称:reweb，代码行数:10，代码来源:utils.go

示例10: open

//打开图片文件
func (this *Image) open(filename string) error {

	src, err := imaging.Open(filename)
	if err != nil {
		return err
	}
	this.filename = filepath.Base(filename)
	this.source = src
	return nil
}

开发者ID:jango2015，项目名称:go-cms，代码行数:11，代码来源:image.go

示例11: resizeImage

func resizeImage(filename string, size int) string {
	resizedFile := filename + ".resized.png"
	img, err := imaging.Open(filename)
	if err != nil {
		panic(err)
	}
	dstimg := imaging.Resize(img, size, 0, imaging.Box)
	imaging.Save(dstimg, resizedFile)
	return resizedFile
}

开发者ID:Daio-io，项目名称:pic-sizer，代码行数:10，代码来源:main.go

示例12: GenerateThumbnail

func (f *File) GenerateThumbnail() error {
	fpath := filepath.Join(f.TagDir, f.Filename)

	s, err := imaging.Open(fpath)
	if err != nil {
		return err
	}

	thumb := imaging.Fill(s, 75, 75, imaging.Center, imaging.NearestNeighbor)
	err = imaging.Save(thumb, f.ThumbnailPath())
	return err
}

开发者ID:jmcarbo，项目名称:filebin，代码行数:12，代码来源:file.go

示例13: GenerateThumbnail

func (be *Backend) GenerateThumbnail(bin string, filename string, width int, height int, crop bool) error {
	f, err := be.GetFileMetaData(bin, filename)
	if err != nil {
		return err
	}

	if strings.Split(f.MIME, "/")[0] != "image" {
		return errors.New("Batch job skipped: " + filename + " is not an image")
	}

	fpath := filepath.Join(be.filedir, bin, filename)
	cachedir := filepath.Join(be.filedir, bin, ".cache")
	if !isDir(cachedir) {
		if err := os.Mkdir(cachedir, 0700); err != nil {
			return err
		}
	}
	dst := filepath.Join(cachedir, strconv.Itoa(width)+"x"+strconv.Itoa(height)+"-"+filename)

	// Optimize to skip thumbnail generation if the thumbnail file exists
	// and is newer than the file.
	fi, err := os.Lstat(dst)
	if err == nil {
		if f.CreatedAt.After(fi.ModTime()) {
			// File newer than thumbnail. Ok to generate.
		} else {
			// File older than thumbnail. No need to generate.
			return nil
		}
	}

	s, err := imaging.Open(fpath)
	if err != nil {
		return err
	}

	if crop {
		im := imaging.Fill(s, width, height, imaging.Center, imaging.Lanczos)
		err = imaging.Save(im, dst)
	} else {
		im := imaging.Resize(s, width, height, imaging.Lanczos)
		err = imaging.Save(im, dst)
	}

	f.Links = be.GenerateLinks(f.Bin, f.Filename)
	be.Lock()
	defer be.Unlock()
	id := bin + filename
	delete(be.files, id)
	be.files[id] = f

	return err
}

开发者ID:espebra，项目名称:filebin，代码行数:53，代码来源:fs.go

示例14: main

func main() {
	flag.Parse()

	if len(*destination) > 0 {
		err := os.MkdirAll(*destination, os.ModePerm)
		if err != nil {
			fmt.Printf("Unable to create destination: %s\n", err)
			os.Exit(1)
		}
	}

	extMatch := regexp.MustCompile(`\.[a-zA-Z0-9]+$`)

	filelist := flag.Args()
	// if len(filelist) == 0 {
	// 	filelist = []string{"./*.*"}
	// }

	for _, srcArg := range filelist {
		srcFilenames, err := filepath.Glob(srcArg)
		if err != nil {
			log.Printf("Glob error: %s\n", err)
			continue
		}
		for _, srcFilename := range srcFilenames {
			fmt.Printf("Processing [%s]... ", srcFilename)
			src, err := imaging.Open(srcFilename)
			if err != nil {
				log.Printf("error: %s\n", err)
				continue
			}
			dest := imaging.Grayscale(src)
			extension := *output
			if extension == "" {
				extension = strings.TrimLeft(filepath.Ext(srcFilename), ".")
			}
			destFilename := extMatch.ReplaceAllString(srcFilename, "") + fmt.Sprintf("-grayscale.%s", extension)
			if len(*destination) > 0 {
				_, file := filepath.Split(destFilename)
				destFilename = filepath.Join(*destination, file)
			}
			err = imaging.Save(dest, destFilename)
			if err != nil {
				log.Printf("error: %s\n", err)
				continue
			}
			fmt.Printf("OK; written to %s\n", destFilename)
		}
	}
}

开发者ID:scjalliance，项目名称:grayscale，代码行数:50，代码来源:grayscale.go

示例15: thumbs

func thumbs(args []string, thumbSizes []int) {
	if newThumbsSizes != "" {
		vals := strings.Split(newThumbsSizes, ",")
		thumbSizes = make([]int, len(vals))
		for i := 0; i < len(vals); i++ {
			numstr := strings.TrimSpace(vals[i])
			if numstr == "" {
				thumbSizes[i] = 0
				continue
			}
			num, err := strconv.Atoi(numstr)
			if err != nil {
				log.Print(err)
				continue
			}
			thumbSizes[i] = num
		}
	}

	for i := 0; i < len(args); i++ {

		file := args[i]
		ext := filepath.Ext(file)

		_, err := os.Stat(file)
		if err != nil {
			log.Fatal("file " + file + " is not accessible")
		}

		img, err := imaging.Open(file)
		if err != nil {
			log.Fatal(err)
		}

		for j := 0; j < len(thumbSizes); j++ {
			if thumbSizes[j] == 0 {
				continue
			}
			resized := imaging.Resize(img, thumbSizes[j], 0, imaging.Lanczos)
			rect := resized.Bounds().Max
			out := fmt.Sprintf("%s_%dx%d%s",
				strings.TrimSuffix(file, ext), rect.X, rect.Y, ext)
			err = imaging.Save(resized, out)
			log.Println("saved " + out)
			if err != nil {
				log.Fatal(err)
			}
		}
	}
}

开发者ID:chairraver，项目名称:img4hugo，代码行数:50，代码来源:img4hugo.go

示例16: getImage

func getImage(filename string, small bool) (io.ReadCloser, error) {
	if !small {
		return os.Open(filename)
	}

	fullImage, err := imaging.Open(filename)
	if err != nil {
		return nil, err
	}
	resized := imaging.Fit(fullImage, config.SmallRes, config.SmallRes, imaging.Linear)

	r, w := io.Pipe()
	go imaging.Encode(w, resized, imaging.JPEG)
	return r, nil
}

开发者ID:rdterner，项目名称:photoview，代码行数:15，代码来源:download.go

示例17: main

func main() {
	optarg.Header("General options")
	optarg.Add("h", "height", "image height", 100)
	optarg.Add("w", "width", "image width", 0)
	optarg.Add("i", "input", "input filename", "")
	optarg.Add("o", "output", "output filename", "")

	var (
		height  int
		width   int
		inName  string
		outName string
	)

	for opt := range optarg.Parse() {
		switch opt.ShortName {
		case "h":
			height = opt.Int()
		case "w":
			width = opt.Int()
		case "i":
			inName = opt.String()
		case "o":
			outName = opt.String()
		}
	}

	if inName == "" || outName == "" {
		optarg.Usage()
		log.Fatal()
	}

	orgImg, err := imaging.Open(inName)
	if err != nil {
		log.Fatal(err)
	}

	dstImg := resize(orgImg, width, height)

	err = imaging.Save(dstImg, outName)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println("Resize to", outName)
}

开发者ID:mshr-h，项目名称:goresize，代码行数:45，代码来源:goresize.go

示例18: Resize

func Resize(c *middleware.Context) {
	w := c.QueryInt("width")
	p := c.Req.URL.Path
	color.Green("[path] %s", p)
	target := strings.TrimPrefix(p, "/resize")
	if strings.HasPrefix(target, "/cat/screen/") {
		var id int64
		fmt.Sscanf(target, "/cat/screen/%d?width=", &id)
		name, e := screen(id)
		if e != nil {
			color.Red("%s", e)
			return
		}
		target = name
	}
	savePath := "data/public/resize/" + com.ToStr(w) + "/" + target + ".jpg"
	if com.IsFile(savePath) {
		f, e := os.Open(savePath)
		if e != nil {
			color.Red("%s", e)
		}
		c.Resp.Header().Set("Content-Type", "image/jpeg")
		io.Copy(c.Resp, f)
		return
	}

	img, e := imaging.Open(filepath.Join("data/uploads", target))
	if e != nil {
		color.Red("%s", e)
		return
	}
	i := resize.Resize(uint(w), uint(w/2), img, resize.Bilinear)
	dir := filepath.Dir(target)
	os.MkdirAll(filepath.Join("data/public/resize/"+com.ToStr(w)+"/", dir), 0777)
	e = imaging.Save(i, savePath)
	if e != nil {
		color.Red("%s", e)
	}
	c.Resp.Header().Set("Content-Type", "image/jpeg")
	e = jpeg.Encode(c.Resp, i, nil)
	if e != nil {
		color.Red("%s", e)
	}
	//c.Redirect("/public/resize/" + com.ToStr(w) + "/" + target + ".jpg")
}

开发者ID:zhuharev，项目名称:smoljanin.ru，代码行数:45，代码来源:catalog.go

示例19: GenerateImage

func (f *File) GenerateImage(width int, height int, crop bool) error {
	fpath := filepath.Join(f.TagDir, f.Filename)

	s, err := imaging.Open(fpath)
	if err != nil {
		return err
	}

	if crop {
		im := imaging.Fill(s, width, height, imaging.Center,
			imaging.Lanczos)
		err = imaging.Save(im, f.ImagePath(width, height))
	} else {
		im := imaging.Resize(s, width, height, imaging.Lanczos)
		err = imaging.Save(im, f.ImagePath(width, height))
	}
	return err
}

开发者ID:denisbr，项目名称:filebin，代码行数:18，代码来源:file.go

示例20: Draw

func (i *Image) Draw() image.Image {
	if i.canvas != nil && i.upToDate {
		return i.canvas
	}

	m, err := imaging.Open(i.href)
	if err != nil {
		return image.Transparent
	}

	if i.width|i.height != 0 {
		m = imaging.Resize(m, i.width, i.height, i.filter)
	}
	size := m.Bounds().Size()
	i.setDimensions(size.X, size.Y)

	return m
}

开发者ID:stephenwithav，项目名称:ssvgc，代码行数:18，代码来源:image.go

注：本文中的github.com/disintegration/imaging.Open函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。