Java Code Examples for java.awt.image.BufferedImage#getScaledInstance()
The following examples show how to use
java.awt.image.BufferedImage#getScaledInstance() .
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Example 1
Source File: ImgUtils.java From mvisc with GNU General Public License v3.0 | 6 votes |
public static Image getThumbnailAsImage(String originalFileName, int width, int height) { String outputFileName = originalFileName.substring(0, originalFileName.length()-4) + ".tn.jpg"; Image thumbnailImage = null; try{ File thumbnailFile = new File(outputFileName); if (thumbnailFile.exists()) thumbnailImage = ImageIO.read(thumbnailFile); else { BufferedImage img = ImageIO.read(new File(originalFileName)); thumbnailImage = img.getScaledInstance(width, height, Image.SCALE_SMOOTH); ImageIO.write(ImgUtils.toBufferedImage(thumbnailImage), "jpg", thumbnailFile); } return thumbnailImage; } catch(Exception e) { e.printStackTrace(); } return null; }
Example 2
Source File: TemplateImage.java From onetwo with Apache License 2.0 | 6 votes |
@Override public void doDraw(GraphicsContext graphic, ImageDefinedData data) { Image img = null; if(data.getWidth()!=null && data.getHeight()!=null){ BufferedImage imgBuf = ImageUtils.readBufferedImage(graphic.getData()); img = imgBuf.getScaledInstance(data.getWidth(), data.getHeight(), Image.SCALE_SMOOTH); }else{ img = ImageUtils.createImageIcon(graphic.getData()).getImage(); } int x = data.getX(); int y = data.getY(); if(data.getHorizontal()!=null){ x = data.getHorizontal().getX(graphic, data.getWidth(graphic, img)); } graphic.graphics.drawImage(img, x, y, null); }
Example 3
Source File: baseDrawerItem.java From brModelo with GNU General Public License v3.0 | 6 votes |
public void DrawImagem(Graphics2D g) { BufferedImage img = getImagem(); if (img == null) { return; } int[] pts = ArrayDePontos(getPosiImagem()); if (pts.length != 4) { posiImagem = "L,T,200,200"; imgres = null; pts = ArrayDePontos(getPosiImagem()); } Rectangle rec = new Rectangle(pts[0], pts[1], pts[2], pts[3]); rec.grow(-2, -2); if (imgres == null) { imgres = img.getScaledInstance(rec.width, rec.height, Image.SCALE_SMOOTH); } g.drawImage(imgres, rec.x, rec.y, null); }
Example 4
Source File: IOUtil.java From davmail with GNU General Public License v2.0 | 6 votes |
/** * Resize image to a max width or height image size. * * @param inputImage input image * @param max max size * @return scaled image */ public static BufferedImage resizeImage(BufferedImage inputImage, int max) { int width = inputImage.getWidth(); int height = inputImage.getHeight(); int targetWidth; int targetHeight; if (width <= max && height <= max) { return inputImage; } else if (width > height) { targetWidth = max; targetHeight = targetWidth * height / width; } else { targetHeight = max; targetWidth = targetHeight * width / height; } Image scaledImage = inputImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_SMOOTH); BufferedImage targetImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB); targetImage.getGraphics().drawImage(scaledImage, 0, 0, null); return targetImage; }
Example 5
Source File: Imager.java From boubei-tss with Apache License 2.0 | 6 votes |
public static void zoomImage(String src, Integer maxPicSize) throws Exception { File srcFile = new File(src); long fileSize = srcFile.length(); String subfix = FileHelper.getFileSuffix(srcFile.getName()); List<String> list = Arrays.asList( "jpg,jpeg,bmp,gif".split(",") ); // 这些格式支持有损压缩,png等不支持 if (fileSize <= maxPicSize * 1024 || !list.contains(subfix.toLowerCase())) { // 文件本身已小于size(K)时,不做缩放 return; } Double rate = (maxPicSize * 1024.0) / fileSize; // 获取长宽缩放比例 rate = Math.max(rate, 0.5); BufferedImage bufImg = ImageIO.read(srcFile); Image Itemp = bufImg.getScaledInstance(bufImg.getWidth(), bufImg.getHeight(), Image.SCALE_SMOOTH); AffineTransformOp ato = new AffineTransformOp(AffineTransform.getScaleInstance(rate, rate), null); Itemp = ato.filter(bufImg, null); ImageIO.write((BufferedImage) Itemp, subfix, srcFile); }
Example 6
Source File: HeatmapPanel.java From Juicebox with MIT License | 5 votes |
public Image getThumbnailImage(MatrixZoomData zd0, MatrixZoomData ctrl0, int tw, int th, MatrixType displayOption, NormalizationType observedNormalizationType, NormalizationType controlNormalizationType) { if (MatrixType.isPearsonType(displayOption) && hic.isPearsonsNotAvailableForFile(false)) { JOptionPane.showMessageDialog(this, "Pearson's matrix is not available at this resolution"); return null; } int maxBinCountX = zd0.getXGridAxis().getBinCount(); int maxBinCountY = zd0.getYGridAxis().getBinCount(); int wh = Math.max(maxBinCountX, maxBinCountY); //if (wh > 1000) wh=1000; // this can happen with single resolution hic files - breaks thumbnail localization BufferedImage image = (BufferedImage) createImage(wh, wh); Graphics2D g = image.createGraphics(); if (HiCGlobals.isDarkulaModeEnabled) { g.setColor(Color.darkGray); g.fillRect(0, 0, wh, wh); } boolean success = renderer.render(0, 0, maxBinCountX, maxBinCountY, zd0, ctrl0, displayOption, observedNormalizationType, controlNormalizationType, hic.getExpectedValues(), hic.getExpectedControlValues(), g, false); if (!success) return null; return image.getScaledInstance(tw, th, Image.SCALE_REPLICATE); }
Example 7
Source File: Compiler.java From appinventor-extensions with Apache License 2.0 | 5 votes |
private BufferedImage produceForegroundImageIcon(BufferedImage icon) { int imageWidth = icon.getWidth(); // According to the adaptive icon documentation, both layers are 108x108dp but only the inner // 72x72dp appears in the masked viewport, so we shrink down the size of the image accordingly. double iconWidth = imageWidth * 72.0 / 108.0; // Round iconWidth value to even int for a centered png int intIconWidth = ((int)Math.round(iconWidth / 2) * 2); Image tmp = icon.getScaledInstance(intIconWidth, intIconWidth, Image.SCALE_SMOOTH); int marginWidth = ((imageWidth - intIconWidth) / 2); BufferedImage foregroundImageIcon = new BufferedImage(imageWidth, imageWidth, BufferedImage.TYPE_INT_ARGB); Graphics2D g2 = foregroundImageIcon.createGraphics(); g2.drawImage(tmp, marginWidth, marginWidth, null); return foregroundImageIcon; }
Example 8
Source File: ImageUtil.java From util with Apache License 2.0 | 5 votes |
/** * 图像切割(按指定起点坐标和宽高切割) * @param srcImageFile 源图像地址 * @param result 切片后的图像地址 * @param x 目标切片起点坐标X * @param y 目标切片起点坐标Y * @param width 目标切片宽度 * @param height 目标切片高度 */ public final static void cut(String srcImageFile, String result, int x, int y, int width, int height) { try { // 读取源图像 BufferedImage bi = ImageIO.read(new File(srcImageFile)); int srcWidth = bi.getHeight(); // 源图宽度 int srcHeight = bi.getWidth(); // 源图高度 if (srcWidth > 0 && srcHeight > 0) { Image image = bi.getScaledInstance(srcWidth, srcHeight, Image.SCALE_DEFAULT); // 四个参数分别为图像起点坐标和宽高 // 即: CropImageFilter(int x,int y,int width,int height) ImageFilter cropFilter = new CropImageFilter(x, y, width, height); Image img = Toolkit.getDefaultToolkit().createImage( new FilteredImageSource(image.getSource(), cropFilter)); BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics g = tag.getGraphics(); g.drawImage(img, 0, 0, width, height, null); // 绘制切割后的图 g.dispose(); // 输出为文件 ImageIO.write(tag, "JPEG", new File(result)); } } catch (Exception e) { e.printStackTrace(); } }
Example 9
Source File: AipBodyAnalysis.java From java-sdk with Apache License 2.0 | 5 votes |
public static BufferedImage resize(BufferedImage img, int newW, int newH) { Image tmp = img.getScaledInstance(newW, newH, Image.SCALE_SMOOTH); BufferedImage dimg = new BufferedImage(newW, newH, BufferedImage.TYPE_INT_ARGB); Graphics2D g2d = dimg.createGraphics(); g2d.drawImage(tmp, 0, 0, null); g2d.dispose(); return dimg; }
Example 10
Source File: ImageUtil.java From xnx3 with Apache License 2.0 | 5 votes |
/** * 后缀格式转换,读入 png、jpg、gif格式图片的 {@link BufferedImage} ,返回新生成的内存图像,可另行保存为png、jpg、gif等格式 * @param bufferedImage * @return 新创建的 {@link BufferedImage} */ public static BufferedImage formatConversion(BufferedImage bufferedImage){ Image image = bufferedImage.getScaledInstance(bufferedImage.getWidth(),bufferedImage.getHeight(), Image.SCALE_DEFAULT); BufferedImage tag = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(), BufferedImage.TYPE_INT_RGB); Graphics g = tag.getGraphics(); g.drawImage(image, 0, 0, null); // 绘制新图 g.dispose(); return tag; }
Example 11
Source File: GeneratePosterBuilder.java From spring-boot-cookbook with Apache License 2.0 | 5 votes |
public GeneratePosterBuilder addHeadImage(String headImageUrl) throws IOException { URL url = new URL(headImageUrl); BufferedImage headImage = ImageIO.read(url.openStream()); int x = 470; int y = 520; int width = 190; int height = 190; Shape olcClip = graphics2D.getClip(); Stroke oldStroke = graphics2D.getStroke(); BasicStroke s = new BasicStroke(20f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND); graphics2D.setStroke(s); Ellipse2D.Double shape = new Ellipse2D.Double(x, y, width, height); log.info("中心点的坐标:CenterX:{},CenterY:{}", shape.getCenterX(), shape.getCenterY()); // graphics2D.fill(new Rectangle(templateWidth, templateWidth)); graphics2D.setStroke(new BasicStroke(1f)); // graphics2D.setColor(Color.WHITE); graphics2D.setColor(Color.green); graphics2D.draw(shape); graphics2D.clip(shape); headImage.getScaledInstance(width, height, BufferedImage.SCALE_SMOOTH); graphics2D.drawImage(headImage, x, y, null); // graphics2D.setColor(Color.WHITE); // shape = new Ellipse2D.Double(x, y, width - 1, height - 1); // graphics2D.drawOval(x, y, width, height); // graphics2D.draw(shape); graphics2D.setClip(olcClip); graphics2D.setStroke(oldStroke); // graphics2D.drawImage(headImage, x - width - 10, y, width, height, null); return this; }
Example 12
Source File: SwingXpraClient.java From xpra-client with GNU General Public License v3.0 | 5 votes |
@Override protected void onCursorUpdate(CursorPacket cursorPacket) { super.onCursorUpdate(cursorPacket); if(cursorPacket.isEmpty()) { return; } int width = cursorPacket.width; int height = cursorPacket.height; ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); int[] nBits = {8, 8, 8, 8}; int[] bOffs = {1, 2, 3, 0}; ColorModel colorModel = new ComponentColorModel(cs, nBits, true, true, Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE); WritableRaster raster = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height, width*4, 4, bOffs, null); BufferedImage img = new BufferedImage(colorModel, raster, true, null); img.getRaster().setDataElements(0, 0, width, height, cursorPacket.pixels); Toolkit toolkit = Toolkit.getDefaultToolkit(); Dimension size = toolkit.getBestCursorSize(width, height); Point hotspot = new Point(cursorPacket.xHotspot, cursorPacket.yHotspot); Image outputImg = img; if(size.width != width || size.height != height) { outputImg = img.getScaledInstance(size.width, size.height, Image.SCALE_SMOOTH); hotspot.x = hotspot.x * size.width / width; hotspot.y = hotspot.y * size.height / height; } Cursor c = toolkit.createCustomCursor(outputImg, hotspot, "test"); SwingFrame window = (SwingFrame) getWindow(1); window.window.setCursor(c); }
Example 13
Source File: HeatmapPanel.java From JuiceboxLegacy with MIT License | 5 votes |
public Image getThumbnailImage(MatrixZoomData zd0, MatrixZoomData ctrl0, int tw, int th, MatrixType displayOption, NormalizationType normalizationType) { if (displayOption == MatrixType.PEARSON && zd0.getPearsons(hic.getDataset().getExpectedValues(zd0.getZoom(), normalizationType)) == null) { JOptionPane.showMessageDialog(this, "Pearson's matrix is not available at this resolution"); return null; } int maxBinCountX = zd0.getXGridAxis().getBinCount(); int maxBinCountY = zd0.getYGridAxis().getBinCount(); int wh = Math.max(maxBinCountX, maxBinCountY); if (wh > 1000) wh=1000; // this can happen with single resolution hic files BufferedImage image = (BufferedImage) createImage(wh, wh); Graphics2D g = image.createGraphics(); boolean success = renderer.render(0, 0, maxBinCountX, maxBinCountY, zd0, ctrl0, displayOption, normalizationType, hic.getDataset().getExpectedValues(zd0.getZoom(), normalizationType), g); if (!success) return null; return image.getScaledInstance(tw, th, Image.SCALE_REPLICATE); }
Example 14
Source File: DockManagerImpl.java From consulo with Apache License 2.0 | 5 votes |
private MyDragSession(MouseEvent me, @Nonnull DockableContent content) { myWindow = JWindowPopupFactory.getInstance().create(null); myContent = content; Image previewImage = content.getPreviewImage(); double requiredSize = 220; double width = previewImage.getWidth(null); double height = previewImage.getHeight(null); double ratio; if (width > height) { ratio = requiredSize / width; } else { ratio = requiredSize / height; } BufferedImage buffer = UIUtil.createImage(myWindow, (int)width, (int)height, BufferedImage.TYPE_INT_ARGB); buffer.createGraphics().drawImage(previewImage, 0, 0, (int)width, (int)height, null); myDefaultDragImage = buffer.getScaledInstance((int)(width * ratio), (int)(height * ratio), Image.SCALE_SMOOTH); myDragImage = myDefaultDragImage; myWindow.getContentPane().setLayout(new BorderLayout()); myImageContainer = new JLabel(IconUtil.createImageIcon(myDragImage)); myImageContainer.setBorder(new LineBorder(Color.lightGray)); myWindow.getContentPane().add(myImageContainer, BorderLayout.CENTER); setLocationFrom(me); myWindow.setVisible(true); WindowManagerEx.getInstanceEx().setAlphaModeEnabled(myWindow, true); WindowManagerEx.getInstanceEx().setAlphaModeRatio(myWindow, 0.1f); myWindow.getRootPane().putClientProperty("Window.shadow", Boolean.FALSE); }
Example 15
Source File: ImageUtils.java From AndroidDrawableFactory with MIT License | 5 votes |
public static Image resizeImage(BufferedImage bImg, int newWidth, int newHeight) throws FileNotFoundException, IOException { double ratio = getAspectRatio(bImg, newWidth, newHeight); newWidth = (int) (bImg.getWidth(null) * ratio); newHeight = (int) (bImg.getHeight(null) * ratio); Image resizedImage = bImg.getScaledInstance(newWidth, newHeight, Image.SCALE_SMOOTH); return resizedImage; }
Example 16
Source File: IconizedList.java From dsworkbench with Apache License 2.0 | 5 votes |
public IconizedList(String pResourcePath) { try { BufferedImage b = ImageIO.read(IconizedList.class.getResource(pResourcePath)); iconImage = b.getScaledInstance(80, 80, BufferedImage.SCALE_SMOOTH); } catch (Exception ignored) { } }
Example 17
Source File: ImgUtil.java From anyline with Apache License 2.0 | 5 votes |
/** * 缩放图像(按高度和宽度缩放) * @param src 源图像文件地址 * @param tar 缩放后的图像地址 * @param format 格式 * @param height 缩放后的高度 * @param width 缩放后的宽度 * @param fill 比例不对时是否需要补白:true为补白; false为不补白; */ public static void scale(File src, File tar, String format, int width, int height, boolean fill) { long fr = System.currentTimeMillis(); try { double ratio = 0.0; // 缩放比例 BufferedImage bi = ImageIO.read(src); Image itemp = bi.getScaledInstance(width, height, BufferedImage.SCALE_SMOOTH); // 计算比例 if (bi.getHeight() > bi.getWidth()) { ratio = (new Integer(height)).doubleValue() / bi.getHeight(); } else { ratio = (new Integer(width)).doubleValue() / bi.getWidth(); } AffineTransformOp op = new AffineTransformOp(AffineTransform .getScaleInstance(ratio, ratio), null); itemp = op.filter(bi, null); if (fill) {//补白 BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics2D g = image.createGraphics(); g.setColor(Color.white); g.fillRect(0, 0, width, height); if (width == itemp.getWidth(null)){ g.drawImage(itemp, 0, (height - itemp.getHeight(null)) / 2, itemp.getWidth(null), itemp.getHeight(null), Color.white, null); }else{ g.drawImage(itemp, (width - itemp.getWidth(null)) / 2, 0, itemp.getWidth(null), itemp.getHeight(null), Color.white, null); } g.dispose(); itemp = image; } File dir = tar.getParentFile(); if(!dir.exists()){ dir.mkdirs(); } // ImageIO.write((BufferedImage) itemp, "JPEG", tar); ImageIO.write((BufferedImage)itemp, format, tar); } catch (IOException e) { e.printStackTrace(); } log.warn("[压缩图片][耗时:{}][source:{}][target:{}]",(System.currentTimeMillis()-fr), src, tar); }
Example 18
Source File: ImgQrTool.java From MeetingFilm with Apache License 2.0 | 5 votes |
/** * 把传入的原始图像按高度和宽度进行缩放,生成符合要求的图标 * * @param srcImageFile 源文件地址 * @param height 目标高度 * @param width 目标宽度 * @param hasFiller 比例不对时是否需要补白:true为补白; false为不补白; * @throws IOException */ private static BufferedImage scale(String srcImageFile, int height, int width, boolean hasFiller) throws IOException { double ratio = 0.0; // 缩放比例 File file = new File(srcImageFile); BufferedImage srcImage = ImageIO.read(file); Image destImage = srcImage.getScaledInstance(width, height, BufferedImage.SCALE_SMOOTH); // 计算比例 if ((srcImage.getHeight() > height) || (srcImage.getWidth() > width)) { if (srcImage.getHeight() > srcImage.getWidth()) { ratio = (new Integer(height)).doubleValue() / srcImage.getHeight(); } else { ratio = (new Integer(width)).doubleValue() / srcImage.getWidth(); } AffineTransformOp op = new AffineTransformOp(AffineTransform.getScaleInstance(ratio, ratio), null); destImage = op.filter(srcImage, null); } if (hasFiller) {// 补白 BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics2D graphic = image.createGraphics(); graphic.setColor(Color.white); graphic.fillRect(0, 0, width, height); if (width == destImage.getWidth(null)) graphic.drawImage(destImage, 0, (height - destImage.getHeight(null)) / 2, destImage.getWidth(null), destImage.getHeight(null), Color.white, null); else graphic.drawImage(destImage, (width - destImage.getWidth(null)) / 2, 0, destImage.getWidth(null), destImage.getHeight(null), Color.white, null); graphic.dispose(); destImage = image; } return (BufferedImage) destImage; }
Example 19
Source File: Screencaster.java From termd with Apache License 2.0 | 4 votes |
private void broadcast() { if (interrupted) { conn.close(); return; } BufferedImage capture = robot.createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize())); Vector size = conn.size(); Image temp = capture.getScaledInstance(size.x(), size.y(), Image.SCALE_SMOOTH); BufferedImage scaled = new BufferedImage(size.x(), size.y(), BufferedImage.TYPE_INT_ARGB); Graphics2D g2d = scaled.createGraphics(); g2d.drawImage(temp, 0, 0, null); g2d.dispose(); StringBuilder sb = new StringBuilder(); for (int y = 0; y < size.y(); y++) { sb.append("\033[").append(y + 1).append(";1H"); for (int x = 0; x < size.x(); x++) { Color pixel = new Color(scaled.getRGB(x, y)); int r = pixel.getRed(); int g = pixel.getGreen(); int b = pixel.getBlue(); double grey = (r + g + b) / 3.0; if (grey < 51) { sb.append('\u2588'); } else if (grey < 102) { sb.append('\u2593'); } else if (grey < 153) { sb.append('\u2592'); } else if (grey < 204) { sb.append('\u2591'); } else { sb.append(' '); } } } conn.write(sb.toString()); conn.schedule(new Runnable() { @Override public void run() { broadcast(); } }, 100, TimeUnit.SECONDS); }
Example 20
Source File: Images.java From hermes with Apache License 2.0 | 4 votes |
/** * Resize an image * * @param originalImage * The image file * @param to * The destination file * @param w * The new width (or -1 to proportionally resize) or the maxWidth * if keepRatio is true * @param h * The new height (or -1 to proportionally resize) or the * maxHeight if keepRatio is true * @param keepRatio * : if true, resize will keep the original image ratio and use w * and h as max dimensions */ public static void resize(File originalImage, File to, int w, int h, boolean keepRatio) { try { BufferedImage source = ImageIO.read(originalImage); int owidth = source.getWidth(); int oheight = source.getHeight(); double ratio = (double) owidth / oheight; int maxWidth = w; int maxHeight = h; if (w < 0 && h < 0) { w = owidth; h = oheight; } if (w < 0 && h > 0) { w = (int) (h * ratio); } if (w > 0 && h < 0) { h = (int) (w / ratio); } if (keepRatio) { h = (int) (w / ratio); if (h > maxHeight) { h = maxHeight; w = (int) (h * ratio); } if (w > maxWidth) { w = maxWidth; h = (int) (w / ratio); } } String mimeType = "image/jpeg"; if (to.getName().endsWith(".png")) { mimeType = "image/png"; } if (to.getName().endsWith(".gif")) { mimeType = "image/gif"; } // out BufferedImage dest = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); Image srcSized = source.getScaledInstance(w, h, Image.SCALE_SMOOTH); Graphics graphics = dest.getGraphics(); graphics.setColor(Color.WHITE); graphics.fillRect(0, 0, w, h); graphics.drawImage(srcSized, 0, 0, null); ImageWriter writer = ImageIO.getImageWritersByMIMEType(mimeType).next(); ImageWriteParam params = writer.getDefaultWriteParam(); FileImageOutputStream toFs = new FileImageOutputStream(to); writer.setOutput(toFs); IIOImage image = new IIOImage(dest, null, null); writer.write(null, image, params); toFs.flush(); toFs.close(); } catch (Exception e) { throw new RuntimeException(e); } }