Java 图片设置圆角(设置边框,旁白)
/** * 图片设置圆角 * @param srcImage * @param radius * @param border * @param padding * @return * @throws IOException */ public static BufferedImage setRadius(BufferedImage srcImage, int radius, int border, int padding) throws IOException{ int width = srcImage.getWidth(); int height = srcImage.getHeight(); int canvasWidth = width + padding * 2; int canvasHeight = height + padding * 2; BufferedImage image = new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB); Graphics2D gs = image.createGraphics(); gs.setComposite(AlphaComposite.Src); gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); gs.setColor(Color.WHITE); gs.fill(new RoundRectangle2D.Float(0, 0, canvasWidth, canvasHeight, radius, radius)); gs.setComposite(AlphaComposite.SrcAtop); gs.drawImage(setClip(srcImage, radius), padding, padding, null); if(border !=0){ gs.setColor(Color.GRAY); gs.setStroke(new BasicStroke(border)); gs.drawRoundRect(padding, padding, canvasWidth - 2 * padding, canvasHeight - 2 * padding, radius, radius); } gs.dispose(); return image; } /** * 图片设置圆角 * @param srcImage * @return * @throws IOException */ public static BufferedImage setRadius(BufferedImage srcImage) throws IOException{ int radius = (srcImage.getWidth() + srcImage.getHeight()) / 6; return setRadius(srcImage, radius, 2, 5); } /** * 图片切圆角 * @param srcImage * @param radius * @return */ public static BufferedImage setClip(BufferedImage srcImage, int radius){ int width = srcImage.getWidth(); int height = srcImage.getHeight(); BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); Graphics2D gs = image.createGraphics(); gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); gs.setClip(new RoundRectangle2D.Double(0, 0, width, height, radius, radius)); gs.drawImage(srcImage, 0, 0, null); gs.dispose(); return image; }