Beispiel #1
0
func main() {
	// Note that the colours are stored as separate *normalized* RGB components
	arglist := []float64{
		0, 0,
		// RGB black
		0, 0, 0,
		// The y coordinate is filled in later
		0, -1,
		// RGB white
		1, 1, 1,
	}
	// arguments for MagickFunctionImage
	funclist := []float64{4, -4, 1}
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	mw.ReadImage("beijing_md.jpg")
	// fill in the Y coordinate now that we can get the image dimensions
	arglist[6] = float64(mw.GetImageHeight() - 1)
	mw.SigmoidalContrastImage(true, 15, imagick.QUANTUM_RANGE*30/100)
	cw := mw.Clone()
	defer cw.Destroy()
	cw.SparseColorImage(imagick.CHANNELS_RGB, imagick.INTERPOLATE_BARYCENTRIC_COLOR, arglist)
	// Do the polynomial function
	cw.FunctionImage(imagick.FUNCTION_POLYNOMIAL, funclist)
	// -set option:compose:args 15
	if err := cw.SetImageArtifact("compose:args", "15"); err != nil {
		panic(err)
	}
	mw.CompositeImage(cw, imagick.COMPOSITE_OP_BLUR, 0, 0)
	mw.WriteImage("beijing_model.jpg")
}
Beispiel #2
0
func main() {
	flag.Parse()

	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	var err error

	if flag.NArg() < 1 {
		fmt.Println("Usage: imagick_profiles <imgfile> [<proftype>]\n")
		os.Exit(1)
	}
	basename := flag.Arg(0)
	err = mw.ReadImage(basename)
	if err != nil {
		fmt.Println("ReadImage Error:", err)
		os.Exit(1)
	}
	if flag.NArg() == 1 {
		profs := mw.GetImageProfiles("*")
		fmt.Println(profs)
	} else {
		proftype := flag.Arg(1)
		prof := mw.GetImageProfile(proftype)
		fmt.Print(prof)
	}
}
Beispiel #3
0
func main() {
	var err error
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	bg := imagick.NewPixelWand()
	defer bg.Destroy()
	fg := imagick.NewPixelWand()
	defer fg.Destroy()

	err = mw.ReadImage("http://www.imagemagick.org/Usage/images/cyclops_sm.gif")
	if err != nil {
		panic(err)
	}

	bg.SetColor("white")
	mw.BorderImage(bg, 1, 1)
	mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_SET)

	fg.SetColor("none")
	channel := imagick.CHANNELS_RGB | imagick.CHANNEL_ALPHA

	// Floodfill the "background" colour with the "foreground" colour
	// starting at coordinate 0,0 using a fuzz of 20
	mw.FloodfillPaintImage(channel, fg, 20, bg, 0, 0, false)
	mw.ShaveImage(1, 1)

	mw.DisplayImage(os.Getenv("DISPLAY"))
	if err != nil {
		panic(err)
	}
}
Beispiel #4
0
// Text effect 2 - tiled text using the builtin checkerboard pattern
// Anthony's Tiled Font effect
func textEffect2() {
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	setTilePattern(dw, "#check", "pattern:checkerboard")
	pw.SetColor("lightblue")
	// Create a new transparent image
	mw.NewImage(320, 100, pw)
	// Set up a 72 point font
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Now draw the text
	dw.Annotation(28, 68, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	// Trim the image
	mw.TrimImage(0)
	// Add a transparent border
	pw.SetColor("lightblue")
	mw.BorderImage(pw, 5, 5)
	// and write it
	mw.WriteImage("text_pattern.png")
}
Beispiel #5
0
// Text effect 4 - bevelled font http://www.imagemagick.org/Usage/fonts/#bevel
func textEffect4() {
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	// Create a 320x100 canvas
	pw.SetColor("gray")
	mw.NewImage(320, 100, pw)
	// Set up a 72 point font
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Set up a 72 point white font
	pw.SetColor("white")
	dw.SetFillColor(pw)
	// Now draw the text
	dw.Annotation(25, 65, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	// the "gray" parameter must be true to get the effect shown on Anthony's page
	mw.ShadeImage(true, 140, 60)
	pw.SetColor("yellow")
	dw.SetFillColor(pw)
	cpw := imagick.NewPixelWand()
	defer cpw.Destroy()
	cpw.SetColor("gold")
	mw.ColorizeImage(pw, cpw)
	// and write it
	mw.WriteImage("text_bevel.png")
}
Beispiel #6
0
// Text effect 7 - Polar distortion
func textEffect7() {
	imagick.Initialize()
	defer imagick.Terminate()
	// This one uses d_args[0]
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	// Create a 320x200 transparent canvas
	pw.SetColor("none")
	mw.NewImage(320, 200, pw)
	// Set up a 72 point font
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Now draw the text
	dw.Annotation(25, 65, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	d_args[0] = 0.0
	// DON'T FORGET to set the correct number of arguments here
	mw.DistortImage(imagick.DISTORTION_POLAR, d_args, true)
	//mw.ResetImagePage("")
	// Trim the image again
	mw.TrimImage(0)
	// Add the border
	pw.SetColor("none")
	mw.BorderImage(pw, 10, 10)
	// and write it
	mw.WriteImage("text_polar.png")
}
Beispiel #7
0
func main() {
	imagick.Initialize()
	defer imagick.Terminate()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	lw := imagick.NewMagickWand()
	defer lw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()

	// Create the initial 640x480 transparent canvas
	pw.SetColor("none")
	mw.NewImage(640, 480, pw)

	pw.SetColor("white")
	dw.SetFillColor(pw)
	dw.RoundRectangle(15, 15, 624, 464, 15, 15)
	mw.DrawImage(dw)

	lw.ReadImage("logo:")
	// Note that MagickSetImageCompose is usually only used for the MagickMontageImage
	// function and isn't used or needed by MagickCompositeImage
	mw.CompositeImage(lw, imagick.COMPOSITE_OP_SRC_IN, 0, 0)

	/* Write the new image */
	mw.WriteImage("mask_result.png")
}
Beispiel #8
0
func main() {
	imagick.Initialize()
	defer imagick.Terminate()

	// Start chunking workers
	imagesChan := make(chan []byte)
	for i := 0; i < chunkersCnt; i++ {
		go scheduleChunking(imagesChan)
	}

	// Start token store cleaner
	go tokenStoreCleaner(time.Tick(tokenCleanup))

	// Serve Assets
	http.Handle("/css/", http.FileServer(http.Dir("./assets")))
	http.Handle("/js/", http.FileServer(http.Dir("./assets")))
	http.Handle("/fonts/", http.FileServer(http.Dir("./assets")))

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		switch {
		case r.Method == "POST" && r.URL.Path == "/":
			handlePost(imagesChan, w, r)
		case r.Method == "GET" && r.URL.Path == "/":
			handleGetIndex(w, r)
		default:
			log.Println("404: ", r.URL.Path)
			http.NotFound(w, r)
		}
	})

	log.Println("Server started")
	log.Fatal(http.ListenAndServe(":8080", nil))
}
Beispiel #9
0
func TestResize(t *testing.T) {
	imagick.Initialize()
	defer imagick.Terminate()

	tests := []*ResizeCase{
		{"fixture/circle.png", 30, 150},
	}

	if err := os.Mkdir("test-out", os.ModeDir|os.ModePerm); os.IsNotExist(err) {
		t.Fatal(err)
	}

	for i, x := range tests {
		before, err := ioutil.ReadFile(x.filename)

		if err != nil {
			t.Fatal(err)
		}

		after, err := Resize(before, x.w, x.h)

		if err != nil {
			t.Fatal(err)
		}

		filename := fmt.Sprintf("test-out/resize-%dx%d-%d%s", x.w, x.h, i, filepath.Ext(x.filename))
		err = ioutil.WriteFile(filename, after, os.ModePerm)

		if err != nil {
			t.Fatal(err)
		}
	}
}
Beispiel #10
0
// Text effect 3 -  arc font (similar to http://www.imagemagick.org/Usage/fonts/#arc)
func textEffect3() {
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	// Create a 320x100 lightblue canvas
	pw.SetColor("lightblue")
	mw.NewImage(320, 100, pw)
	// Set up a 72 point font
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Now draw the text
	dw.Annotation(25, 65, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	mw.DistortImage(imagick.DISTORTION_ARC, dargs, false)
	// Trim the image
	mw.TrimImage(0)
	// Add the border
	pw.SetColor("lightblue")
	mw.BorderImage(pw, 10, 10)
	// and write it
	mw.WriteImage("text_arc.png")
}
Beispiel #11
0
// Example 2
// Rotate logo: 30 degrees around the point (300,100)
// Since rotation is done around the origin, we must translate
// the point (300,100) up to the origin, do the rotation, and
// then translate back again
//
func example2() {
	imagick.Initialize()
	defer imagick.Terminate()

	t1 := make([]float64, 6)
	r := make([]float64, 6)
	t2 := make([]float64, 6)
	temp := make([]float64, 6)
	result := make([]float64, 6)

	mw := imagick.NewMagickWand()
	defer mw.Destroy()

	mw.ReadImage("logo:")

	// Initialize the required affines
	// translate (300,100) to origin
	set_translate_affine(t1, -300, -100)
	// rotate clockwise by 30 degrees
	set_rotate_affine(r, 30)
	// translate back again
	set_translate_affine(t2, 300, 100)

	// Now multiply the affine sequence
	// temp = t1*r
	affine_multiply(temp, t1, r)
	// result = temp*t2
	affine_multiply(result, temp, t2)

	mw.DistortImage(imagick.DISTORTION_AFFINE_PROJECTION, result, false)
	mw.WriteImage("logo_affine_2.jpg")
}
Beispiel #12
0
func Draw(text string, name string) {
	imagick.Initialize()
	defer imagick.Terminate()
	// Current coordinates of text
	var dx float64 = 20

	mw := imagick.NewMagickWand()
	dw := imagick.NewDrawingWand()
	defer mw.Destroy()
	defer dw.Destroy()

	// Set the size of the image
	mw.SetSize(285, 50)
	mw.ReadImage("../assets/images/bg.gif")

	// Start near the left edge
	dw.SetFontSize(40)
	// Note that we must free up the fontmetric array once we're done with it
	list := strings.Split(text, " ")
	for _, item := range list {
		writeWord(mw, dw, &dx, item)
	}
	mw.DrawImage(dw)
	// Now write the magickwand image
	mw.WriteImage(name)
}
Beispiel #13
0
func getTextImage(text string, size int) []byte {
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	l := len(text)
	w := size * 3 * (l + 6)
	h := size * 2
	pw.SetColor("none")
	mw.NewImage(uint(w), uint(h), pw)
	pw.SetColor("white")
	dw.SetFillColor(pw)
	dw.SetFont("/usr/share/fonts/default/TrueType/msyh.ttf")
	dw.SetFontSize(float64(size))
	dw.Annotation(0, float64(size), "ctrip © "+text)
	mw.DrawImage(dw)
	mw.TrimImage(0)

	mw.ResetImagePage("")
	cw := mw.Clone()
	pw.SetColor("black")
	mw.SetImageBackgroundColor(pw)
	mw.ShadowImage(100, 1, 0, 0)
	mw.CompositeImage(cw, imagick.COMPOSITE_OP_OVER, 1, 1)
	cw.Destroy()

	mw.SetImageFormat("PNG")
	return mw.GetImageBlob()
}
Beispiel #14
0
func (c Snappshot) Screenshot(res string) revel.Result {
	s := strings.Split(res, "x")
	width, _ := strconv.Atoi(s[0])
	height, _ := strconv.Atoi(s[1])
	imagick.Initialize()
	defer imagick.Terminate()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	cw := imagick.NewPixelWand()
	cw2 := imagick.NewPixelWand()

	cw.SetColor("darkgray")
	cw2.SetColor("white")
	mw.NewImage(uint(width), uint(height), cw)

	dw.SetTextAlignment(imagick.ALIGN_CENTER)
	dw.SetFillColor(cw2)
	dw.SetFontSize(150)
	cw2.SetColor("black")
	dw.SetStrokeColor(cw2)
	dw.Annotation(float64(width)/2, float64(height)/2, res)

	mw.DrawImage(dw)
	mw.SetImageFormat("jpg")
	output := mw.GetImageBlob()
	return JPGImage(output)
}
Beispiel #15
0
// Extracts thumbnail
func (c *Convertor) ExtractThumbnail(file string, info os.FileInfo) {
	c.CurrFile += 1

	cover, err := c.GetCoverImage(file, info)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error GetCoverImage: %v\n", err.Error())
		return
	}

	if err != nil {
		fmt.Fprintf(os.Stderr, "Error Thumbnail: %v\n", err.Error())
		return
	}

	if c.Opts.Width > 0 || c.Opts.Height > 0 {
		if c.Opts.Fit {
			cover = imaging.Fit(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
		} else {
			cover = imaging.Resize(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
		}
	} else {
		cover = imaging.Resize(cover, 256, 0, filters[c.Opts.Filter])
	}

	imagick.Initialize()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()

	b := new(bytes.Buffer)
	png.Encode(b, cover)

	err = mw.ReadImageBlob(b.Bytes())
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error ReadImageBlob: %v\n", err.Error())
	}

	var fileuri string
	var filename string

	if c.Opts.Outfile == "" {
		fileuri = "file://" + file
		filename = filepath.Join(c.Opts.Outdir, fmt.Sprintf("%x.png", md5.Sum([]byte(fileuri))))
	} else {
		abs, _ := filepath.Abs(c.Opts.Outfile)
		fileuri = "file://" + abs
		filename = abs
	}

	mw.SetImageFormat("PNG")
	mw.SetImageProperty("Software", "CBconvert")
	mw.SetImageProperty("Description", "Thumbnail of "+fileuri)
	mw.SetImageProperty("Thumb::URI", fileuri)
	mw.SetImageProperty("Thumb::MTime", strconv.FormatInt(info.ModTime().Unix(), 10))
	mw.SetImageProperty("Thumb::Size", strconv.FormatInt(info.Size(), 10))
	mw.SetImageProperty("Thumb::Mimetype", mime.TypeByExtension(filepath.Ext(file)))

	mw.WriteImage(filename)
}
Beispiel #16
0
// Text effect 5 and 6 - Plain text and then Barrel distortion
func textEffect5And6() {
	imagick.Initialize()
	defer imagick.Terminate()
	// This one uses d_args
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	// Create a 320x100 transparent canvas
	pw.SetColor("none")
	mw.NewImage(320, 100, pw)
	// Set up a 72 point font
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Now draw the text
	dw.Annotation(25, 65, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	mw.WriteImage("text_plain.png")
	// Trim the image
	mw.TrimImage(0)
	// Add the border
	pw.SetColor("none")
	mw.BorderImage(pw, 10, 10)
	//mw.SetImageMatte(true)
	//mw.SetImageVirtualPixelMethod(TransparentVirtualPixelMethod)
	// 	d_args[0] = 0.1;d_args[1] = -0.25;d_args[2] = -0.25; [3] += .1
	// The first value should be positive. If it is negative the image is *really* distorted
	d_args[0] = 0.0
	d_args[1] = 0.0
	d_args[2] = 0.5
	// d_args[3] should normally be chosen such the sum of all 4 values is 1
	// so that the result is the same size as the original
	// You can override the sum with a different value
	// If the sum is greater than 1 the resulting image will be smaller than the original
	d_args[3] = 1 - (d_args[0] + d_args[1] + d_args[2])
	// Make the result image smaller so that it isn't as likely
	// to overflow the edges
	// d_args[3] += 0.1
	// 0.0,0.0,0.5,0.5,0.0,0.0,-0.5,1.9
	d_args[3] = 0.5
	d_args[4] = 0.0
	d_args[5] = 0.0
	d_args[6] = -0.5
	d_args[7] = 1.9
	// DON'T FORGET to set the correct number of arguments here
	mw.DistortImage(imagick.DISTORTION_BARREL, d_args, true)
	//mw.ResetImagePage("")
	// Trim the image again
	mw.TrimImage(0)
	// Add the border
	pw.SetColor("none")
	mw.BorderImage(pw, 10, 10)
	// and write it
	mw.WriteImage("text_barrel.png")
}
func main() {
	imagick.Initialize()
	// Schedule cleanup
	defer imagick.Terminate()

	http.HandleFunc("/", handler)
	http.ListenAndServe(":8080", nil)

}
Beispiel #18
0
func main() {
	imagick.Initialize()
	defer imagick.Terminate()

	// Current coordinates of text
	var dx, dy float64
	// Width of a space in current font/size
	var sx float64

	mw := imagick.NewMagickWand()
	dw := imagick.NewDrawingWand()

	// Set the size of the image
	mw.SetSize(300, 100)
	//mw.SetImageAlphaChannel(imagick.CHANNEL_ALPHA)
	mw.ReadImage("xc:white")

	// DO NOT SET GRAVITY - it makes text placement more complicated
	// (unless it does exactly what you wanted anyway).

	// Start near the left edge
	dx = 10

	// If we know the largest font we're using, we can set the y coordinate
	// fairly accurately. In this case it is the 72 point Times font, so to
	// place the text such that the largest almost touches the top of the image
	// we just add the text height to the descender to give the coordinate for
	// our baseline.
	// In this case the largest is the 72 point Times-New-Roman so I'll use that
	// to compute the baseline
	dw.SetFontSize(72)
	dw.SetFont("Times-New-Roman")
	fm := mw.QueryFontMetrics(dw, "M")
	dy = fm.CharacterHeight + fm.Descender
	// Note that we must free up the fontmetric array once we're done with it

	// this
	draw_setfont(mw, dw, "Arial", 48, "#40FF80", &sx)
	draw_metrics(mw, dw, &dx, dy, sx, "this")

	// is
	// A NULL signals to draw_setfont that the font stays the same
	draw_setfont(mw, dw, "", 24, "#8040BF", &sx)
	draw_metrics(mw, dw, &dx, dy, sx, "is")

	// my
	draw_setfont(mw, dw, "Times-New-Roman", 18, "#BF00BF", &sx)
	draw_metrics(mw, dw, &dx, dy, sx, "my")

	// text
	draw_setfont(mw, dw, "", 72, "#0F0FBF", &sx)
	draw_metrics(mw, dw, &dx, dy, sx, "text")
	mw.DrawImage(dw)

	// Now write the magickwand image
	mw.WriteImage("metric1.gif")
}
Beispiel #19
0
func main() {
	imagick.Initialize()
	defer imagick.Terminate()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	aw := imagick.NewMagickWand()
	defer aw.Destroy()

	// Read the first input image
	if err := mw.ReadImage("bunny_grass.gif"); err != nil {
		panic(err)
	}

	// We need a separate wand to do this bit in parentheses
	if err := aw.ReadImage("bunny_anim.gif"); err != nil {
		panic(err)
	}
	aw.ResetImagePage("0x0+5+15!")

	// Now we have to add the images in the aw wand on to the end
	// of the mw wand.
	mw.AddImage(aw)
	// We can now destroy the aw wand so that it can be used
	// for the next operation
	aw.Destroy()
	// -coalesce
	aw = mw.CoalesceImages()

	// do "-delete 0" by copying the images from the "aw" wand to
	// the "mw" wand but omit the first one
	// free up the mw wand and recreate it for this step
	mw.Destroy()
	mw = imagick.NewMagickWand()

	for i := 1; i < int(aw.GetNumberImages()); i++ {
		aw.SetIteratorIndex(i)
		tw := aw.GetImage()
		mw.AddImage(tw)
		tw.Destroy()
	}
	mw.ResetIterator()
	aw.Destroy()

	// -deconstruct
	// Anthony says that MagickDeconstructImages is equivalent
	// to MagickCompareImagesLayers so we'll use that
	aw = mw.CompareImageLayers(imagick.IMAGE_LAYER_COMPARE_ANY)
	// -loop 0
	aw.SetOption("loop", "0")

	// write the images into one file
	if err := aw.WriteImages("bunny_bgnd.gif", true); err != nil {
		panic(err)
	}
}
Beispiel #20
0
// Example 4
// Create a rotated gradient
// See: http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=12707
// The affine in this one is essentially the same as the one in Example 2 but
// this example has a different use for the result
func example4() {
	imagick.Initialize()
	defer imagick.Terminate()

	t1 := make([]float64, 6)
	r := make([]float64, 6)
	t2 := make([]float64, 6)
	temp := make([]float64, 6)
	result := make([]float64, 6)

	// Dimensions of the final rectangle
	w := uint(600)
	h := uint(100)
	// angle of clockwise rotation
	theta := 15.0 // degrees
	// Convert theta to radians
	rad_theta := DegreesToRadians(theta)
	// Compute the dimensions of the rectangular gradient
	gw := (uint)(float64(w)*math.Cos(rad_theta) + float64(h)*math.Sin(rad_theta) + 0.5)
	gh := (uint)(float64(w)*math.Sin(rad_theta) + float64(h)*math.Cos(rad_theta) + 0.5)
	// Don't let the rotation make the gradient rectangle any smaller
	// than the required output
	if gw < w {
		gw = w
	}
	if gh < h {
		gh = h
	}

	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	mw.SetSize(gw, gh)
	mw.ReadImage("gradient:white-black")

	// Initialize the required affines
	// translate centre of gradient to origin
	set_translate_affine(t1, float64(-gw)/2.0, float64(-gh)/2.0)
	// rotate clockwise by theta degrees
	set_rotate_affine(r, theta)
	// translate back again
	set_translate_affine(t2, float64(gw)/2.0, float64(gh)/2.0)

	// Now multiply the affine sequences
	// temp = t1*r
	affine_multiply(temp, t1, r)
	// result = temp*t2
	affine_multiply(result, temp, t2)

	mw.DistortImage(imagick.DISTORTION_AFFINE_PROJECTION, result, false)
	// Get the size of the distorted image and crop out the middle

	nw := mw.GetImageWidth()
	nh := mw.GetImageHeight()
	mw.CropImage(w, h, int((nw-w)/2), int((nh-h)/2))
	mw.WriteImage("rotgrad_2.png")
}
func main() {
	imagick.Initialize()

	mw = imagick.NewMagickWand()
	defer mw.Destroy()

	h := histogram(os.Args[0])
	enc := json.NewEncoder(os.Stdout)
	enc.Encode(h)
}
Beispiel #22
0
func Resize(w, h uint, blob []byte) []byte {
	imagick.Initialize()
	defer imagick.Terminate()

	wand := imagick.NewMagickWand()
	defer wand.Destroy()

	_ = wand.ReadImageBlob(blob)
	wand.ResizeImage(w, h, imagick.FILTER_LANCZOS2_SHARP, 1)
	return wand.GetImageBlob()
}
Beispiel #23
0
func (ng Engine) Initialize(tmpDir string) error {
	if tmpDir != "" {
		if err := os.MkdirAll(tmpDir, 0755); err != nil {
			return err
		}
		ng.tmpDir = tmpDir
		os.Setenv("MAGICK_TMPDIR", tmpDir)
		ng.SweepTmpDir()
	}
	imagick.Initialize()
	return nil
}
Beispiel #24
0
// Encode image to file (ImageMagick)
func (c *Convertor) encodeImageMagick(i image.Image, filename string) (err error) {
	imagick.Initialize()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()

	err = mw.ReadImageBlob(c.GetImageBytes(i))
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error ReadImageBlob: %v\n", err.Error())
		return
	}

	if c.Opts.Grayscale {
		c := mw.GetImageColors()
		mw.QuantizeImage(c, imagick.COLORSPACE_GRAY, 8, true, true)
	}

	switch filepath.Ext(filename) {
	case ".png":
		mw.SetImageFormat("PNG")
		mw.WriteImage(filename)
	case ".tif":
	case ".tiff":
		mw.SetImageFormat("TIFF")
		mw.WriteImage(filename)
	case ".gif":
		mw.SetImageFormat("GIF")
		mw.WriteImage(filename)
	case ".bmp":
		w := imagick.NewPixelWand()
		w.SetColor("black")
		defer w.Destroy()

		cs := mw.GetImageColorspace()
		if c.Opts.Grayscale {
			cs = imagick.COLORSPACE_GRAY
		}

		mw.SetImageFormat("BMP3")
		mw.SetImageBackgroundColor(w)
		mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_REMOVE)
		mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_DEACTIVATE)
		mw.SetImageMatte(false)
		mw.SetImageCompression(imagick.COMPRESSION_NO)
		mw.QuantizeImage(16, cs, 8, true, true)
		mw.WriteImage(filename)
	default:
		mw.SetImageFormat("JPEG")
		mw.WriteImage(filename)
	}

	return
}
Beispiel #25
0
func NewContext(cfgFile string) (*ZContext, error) {
	//初始化imagemagick
	imagick.Initialize()

	//加载配置config.ini文件
	cfg, err := LoadConfig(cfgFile)
	if err != nil {
		return nil, err
	}

	//log日志
	var log *ZLogger
	logOutput := cfg.System.LogOutput
	if logOutput == "file" {
		log, err = NewFileLogger("gimg", 0, cfg.System.LogName)
	} else if logOutput == "console" {
		log, err = NewLogger("gimg", 0)
	} else {
		return nil, fmt.Errorf("初始化logo日志失败!")
	}

	if err != nil {
		return nil, err
	}

	//cache缓存
	var cache *ZCache
	if cfg.Cache.Cache == 1 {
		// var client *memcache.Client
		// cacheAddr := fmt.Sprintf("%s:%d", cfg.Cache.MemcacheHost, cfg.Cache.MemcachePort)
		// client = memcache.New(cacheAddr)
		cache = NewCache(cfg.Cache.MemcacheHost, cfg.Cache.MemcachePort)
	} else {
		cache = nil
	}

	//初始化imagemagick
	img := NewImage()

	//redisDB缓存
	redisDB, err := NewRedisDB(cfg.Storage.SsdbHost, cfg.Storage.SsdbPort)
	if err != nil {
		return nil, err
	}

	return &ZContext{Config: cfg,
		Logger: log,
		Cache:  cache,
		Image:  img,
		Redis:  redisDB,
	}, nil
}
Beispiel #26
0
func init() {
	imagick.Initialize()

	ImageHandler.Func = imageHandler

	num := runtime.NumCPU() * 4
	requestContexts = make(RequestContexts, num)
	for i := 0; i < num; i++ {
		requestContexts <- &RequestContext{
			Wand: imagick.NewMagickWand(),
		}
	}
}
Beispiel #27
0
func init() {
	rand.Seed(time.Now().UTC().UnixNano())

	log.SetFlags(log.Flags() | log.Llongfile)
	//currentDir, _ := filepath.Abs(filepath.Dir(os.Args[0]))

	filePath = flag.String("f", "/home/joakim/Go/src/github.com/joakimp1/gofaces", "Path to images.")
	flag.Parse()

	imagick.Initialize()
	defer imagick.Terminate()

}
Beispiel #28
0
// Actually placed screenshot onto background image
func placeit(image_id string, xml_data Result, image []byte) string {
	imagick.Initialize()
	defer imagick.Terminate()

	width, _ := strconv.Atoi(xml_data.Device.Resolution.Width)
	height, _ := strconv.Atoi(xml_data.Device.Resolution.Height)

	x_positions := make([]int, 4)
	x_positions[0], _ = strconv.Atoi(xml_data.Device.Placement.Top_left_x)
	x_positions[1], _ = strconv.Atoi(xml_data.Device.Placement.Top_right_x)
	x_positions[2], _ = strconv.Atoi(xml_data.Device.Placement.Bottom_right_x)
	x_positions[3], _ = strconv.Atoi(xml_data.Device.Placement.Bottom_left_x)

	y_positions := make([]int, 4)
	y_positions[0], _ = strconv.Atoi(xml_data.Device.Placement.Top_left_y)
	y_positions[1], _ = strconv.Atoi(xml_data.Device.Placement.Top_right_y)
	y_positions[2], _ = strconv.Atoi(xml_data.Device.Placement.Bottom_right_y)
	y_positions[3], _ = strconv.Atoi(xml_data.Device.Placement.Bottom_left_y)

	base_x := x_positions[0]
	base_y := y_positions[0]

	result := []float64{0, 0,
		float64(x_positions[0] - base_x), float64(y_positions[0] - base_y),
		float64(width), 0,
		float64(x_positions[1] - base_x), float64(y_positions[1] - base_y),
		float64(width), float64(height),
		float64(x_positions[2] - base_x), float64(y_positions[2] - base_y),
		0, float64(height),
		float64(x_positions[3] - base_x), float64(y_positions[3] - base_y)}

	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	back_mw := imagick.NewMagickWand()
	defer back_mw.Destroy()

	mw.ReadImageBlob(image)
	back_mw.ReadImage("src/github.com/JustinJudd/go_snappshot/public/images/backgrounds/" + image_id + ".jpg")

	mw.SetImageVirtualPixelMethod(imagick.VIRTUAL_PIXEL_TRANSPARENT)
	mw.DistortImage(imagick.DISTORTION_PERSPECTIVE, result, true)

	sort.IntSlice.Sort(x_positions)
	sort.IntSlice.Sort(y_positions)
	back_mw.CompositeImage(mw, imagick.COMPOSITE_OP_OVER, x_positions[0], y_positions[0])
	placed_id := strconv.Itoa(int(time.Now().UnixNano()))
	back_mw.WriteImage(getGeneratedPath(placed_id))

	return placed_id

}
Beispiel #29
0
// Text effect 1 - shadow effect using MagickShadowImage
// NOTE - if an image has a transparent background, adding a border of any colour other
// than "none" will remove all the transparency and replace it with the border's colour
func textEffect1() {
	imagick.Initialize()
	defer imagick.Terminate()
	mw := imagick.NewMagickWand()
	defer mw.Destroy()
	dw := imagick.NewDrawingWand()
	defer dw.Destroy()
	pw := imagick.NewPixelWand()
	defer pw.Destroy()
	pw.SetColor("none")
	// Create a new transparent image
	mw.NewImage(350, 100, pw)
	// Set up a 72 point white font
	pw.SetColor("white")
	dw.SetFillColor(pw)
	dw.SetFont("Verdana-Bold-Italic")
	dw.SetFontSize(72)
	// Add a black outline to the text
	pw.SetColor("black")
	dw.SetStrokeColor(pw)
	// Turn antialias on - not sure this makes a difference
	dw.SetTextAntialias(true)
	// Now draw the text
	dw.Annotation(25, 65, "Magick")
	// Draw the image on to the mw
	mw.DrawImage(dw)
	// Trim the image down to include only the text
	mw.TrimImage(0)
	// equivalent to the command line +repage
	mw.ResetImagePage("")
	// Make a copy of the text image
	cw := mw.Clone()
	// Set the background colour to blue for the shadow
	pw.SetColor("blue")
	mw.SetImageBackgroundColor(pw)
	// Opacity is a real number indicating (apparently) percentage
	mw.ShadowImage(70, 4, 5, 5)
	// Composite the text on top of the shadow
	mw.CompositeImage(cw, imagick.COMPOSITE_OP_OVER, 5, 5)
	cw.Destroy()
	cw = imagick.NewMagickWand()
	defer cw.Destroy()
	// Create a new image the same size as the text image and put a solid colour
	// as its background
	pw.SetColor("rgb(125,215,255)")
	cw.NewImage(mw.GetImageWidth(), mw.GetImageHeight(), pw)
	// Now composite the shadowed text over the plain background
	cw.CompositeImage(mw, imagick.COMPOSITE_OP_OVER, 0, 0)
	// and write the result
	cw.WriteImage("text_shadow.png")
}
Beispiel #30
0
func Thumbnail(filename string, targetWidth, targetHeight uint) {
	imagick.Initialize()
	defer imagick.Terminate()

	mw := imagick.NewMagickWand()
	defer mw.Destroy()

	var err error

	// 画像読み込み
	err = mw.ReadImage(filename)
	if err != nil {
		panic(err)
	}

	// 縦横サイズを取得
	width, height := mw.GetImageWidth(), mw.GetImageHeight()

	// 縦横の小さい方に合わせてリサイズしたときのサイズを取得
	resizedWidth, resizedHeight := getResizedWH(width, height, targetWidth, targetHeight)

	// サムネイルを作成
	err = mw.ThumbnailImage(resizedWidth, resizedHeight)
	if err != nil {
		panic(err)
	}

	// 切り抜き開始位置
	startX, startY := getStartPointXY(width, height, resizedWidth, resizedHeight)

	// 最終的なサイズで切り抜く
	err = mw.ExtentImage(targetWidth, targetHeight, startX, startY)
	if err != nil {
		panic(err)
	}

	// 画像のクオリティ
	err = mw.SetImageCompressionQuality(95)
	if err != nil {
		panic(err)
	}

	// ファイルに保存
	// TODO(hfunai): ファイル名にドットがあると死亡
	err = mw.WriteImage(strings.Replace(filename, ".", "_thumb.", 1))
	if err != nil {
		panic(err)
	}
}