public void actionPerformed(ActionEvent evt) { Graphics g = getGraphics(); if (evt.getSource() == openItem) { JFileChooser chooser = new JFileChooser(); common.chooseFile(chooser, "./images", 0); // 设置默认目录,过滤文件 int r = chooser.showOpenDialog(null); if (r == JFileChooser.APPROVE_OPTION) { String name = chooser.getSelectedFile().getAbsolutePath(); // 装载图像 iImage = common.openImage(name, new MediaTracker(this)); // 取载入图像的宽和高 iw = iImage.getWidth(null); ih = iImage.getHeight(null); bImage = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = bImage.createGraphics(); g2.drawImage(iImage, 0, 0, null); loadflag = true; repaint(); } } else if (evt.getSource() == rotateItem) // 内置旋转 { setTitle("第4章 图像几何变换 内置旋转 作者 孙燮华"); common.draw(g, iImage, bImage, common.getParam("旋转角(度):", "30"), 0, 0); } else if (evt.getSource() == scaleItem) // 内置缩放 { setTitle("第4章 图像几何变换 内置缩放 作者 孙燮华"); // 参数选择面板 Parameters pp = new Parameters("参数", "x方向:", "y方向:", "1.5", "1.5"); setPanel(pp, "内置缩放"); float x = pp.getPadx(); float y = pp.getPady(); common.draw(g, iImage, bImage, x, y, 1); } else if (evt.getSource() == shearItem) // 内置错切 { setTitle("第4章 图像几何变换 内置错切 作者 孙燮华"); Parameters pp = new Parameters("参数", "x方向:", "y方向:", "0.5", "0.5"); setPanel(pp, "内置错切"); float x = pp.getPadx(); float y = pp.getPady(); common.draw(g, iImage, bImage, x, y, 2); } else if (evt.getSource() == transItem) // 内置平移 { setTitle("第4章 图像几何变换 内置平移 作者 孙燮华"); Parameters pp = new Parameters("参数", "x方向:", "y方向:", "100", "50"); setPanel(pp, "内置平移"); float x = pp.getPadx(); float y = pp.getPady(); common.draw(g, iImage, bImage, x, y, 3); } else if (evt.getSource() == rotItem) // 旋转算法 { setTitle("第4章 图像几何变换 旋转算法 作者 孙燮华"); pix = common.grabber(iImage, iw, ih); // 旋转,输出图像宽高 int owh = (int) (Math.sqrt(iw * iw + ih * ih + 0.5)); opix = geom.imRotate(pix, common.getParam("旋转角(度):", "30"), iw, ih, owh); // 将数组中的象素产生一个图像 MemoryImageSource memoryImage = new MemoryImageSource(owh, owh, ColorModel.getRGBdefault(), opix, 0, owh); oImage = createImage(memoryImage); common.draw(g, iImage, oImage, iw, ih, owh, 4); } else if (evt.getSource() == mirItem) // 镜象算法(type:5) { setTitle("第4章 图像几何变换 镜象算法 作者 孙燮华"); Parameters pp = new Parameters("选择镜象类型", "水平", "垂直"); setPanel(pp, "镜象算法"); pix = common.grabber(iImage, iw, ih); opix = geom.imMirror(pix, iw, ih, pp.getRadioState()); ImageProducer ip = new MemoryImageSource(iw, ih, opix, 0, iw); oImage = createImage(ip); common.draw(g, iImage, oImage, iw, ih, 0, 5); } else if (evt.getSource() == shrItem) // 错切算法(type:6) { setTitle("第4章 图像几何变换 错切算法 作者 孙燮华"); Parameters pp = new Parameters("参数", "x方向:", "y方向:", "0.5", "0.5"); setPanel(pp, "错切算法"); pix = common.grabber(iImage, iw, ih); float shx = pp.getPadx(); float shy = pp.getPady(); // 计算包围盒的宽和高 int ow = (int) (iw + (ih - 1) * shx); int oh = (int) ((iw - 1) * shy + ih); if (shx > 0 && shy > 0) { opix = geom.imShear(pix, shx, shy, iw, ih, ow, oh); ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow); oImage = createImage(ip); common.draw(g, iImage, oImage, iw, ih, 0, 6); } else JOptionPane.showMessageDialog(null, "参数必须为正数!"); } else if (evt.getSource() == trnItem) { setTitle("第4章 图像几何变换 平移算法 作者 孙燮华"); Parameters pp = new Parameters("参数", "x方向:", "y方向:", "100", "50"); setPanel(pp, "平移算法"); pix = common.grabber(iImage, iw, ih); int tx = (int) pp.getPadx(); int ty = (int) pp.getPady(); if (tx > 0 && ty > 0) { int ow = iw + tx; int oh = ih + ty; opix = geom.imTrans(pix, tx, ty, iw, ih, ow, oh); ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow); oImage = createImage(ip); common.draw(g, iImage, oImage, iw, ih, 0, 7); } else JOptionPane.showMessageDialog(null, "参数必须为正数!"); } else if (evt.getSource() == nearItem) { setTitle("第4章 图像几何变换 最邻近插值算法 作者 孙燮华"); pix = common.grabber(iImage, iw, ih); float p = (Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(0.1-3.0)", "1.50"))) .floatValue(); int ow = (int) (p * iw); // 计算目标图宽高 int oh = (int) (p * ih); opix = geom.nearNeighbor(pix, iw, ih, ow, oh, p); ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow); oImage = createImage(ip); common.draw(g, oImage, "最邻近插值", p); } else if (evt.getSource() == linrItem) { setTitle("第4章 图像几何变换 双线性插值算法 作者 孙燮华"); pix = common.grabber(iImage, iw, ih); float p = (Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(0.1-3.0)", "1.50"))) .floatValue(); int ow = (int) (p * iw); // 计算目标图宽高 int oh = (int) (p * ih); opix = geom.bilinear(pix, iw, ih, ow, oh, p); ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow); oImage = createImage(ip); common.draw(g, oImage, "双线性插值", p); } else if (evt.getSource() == cubicItem) { setTitle("第4章 图像几何变换 三次卷积插值算法 作者 孙燮华"); pix = common.grabber(iImage, iw, ih); float p = (Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(1.1-3.0)", "1.50"))) .floatValue(); if (p < 1) { JOptionPane.showMessageDialog(null, "参数p必须大于1!"); return; } int ow = (int) (p * iw); // 计算目标图宽高 int oh = (int) (p * ih); opix = geom.scale(pix, iw, ih, ow, oh, p, p); ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow); oImage = createImage(ip); common.draw(g, oImage, "三次卷积插值", p); } else if (evt.getSource() == okButton) dialog.dispose(); else if (evt.getSource() == exitItem) System.exit(0); }
public void actionPerformed(ActionEvent evt) { Graphics graph = getGraphics(); MediaTracker tracker = new MediaTracker(this); if (evt.getSource() == openItem) { JFileChooser chooser = new JFileChooser(); common.chooseFile(chooser, "./images", 0); int r = chooser.showOpenDialog(null); if(r == JFileChooser.APPROVE_OPTION) { String name = chooser.getSelectedFile().getAbsolutePath(); if(runflag) { loadflag = false; runflag = false; } if(!loadflag) { iImage = common.openImage(name, tracker); iw = iImage.getWidth(null); ih = iImage.getHeight(null); repaint(); } else if(loadflag && (!runflag)) { iImage2 = common.openImage(name, tracker); common.draw(graph, iImage, "pic 1", iImage2, "pic 2"); repaint(); } } loadflag = true; } else if (evt.getSource() == grayItem) { setTitle("图像预处理"); if(loadflag) { pixels = common.grabber(iImage, iw, ih); pixels = elements.toGray(pixels, iw, ih); showPix(graph, pixels, "gray pic"); repaint(); } } else if (evt.getSource() == contrastItem) { setTitle("图像预处理"); if(loadflag) { pixels = common.grabber(iImage, iw, ih); int con = common.getParam("type in contrast level(-100~100)","0"); double contrast = (double)con/100.0; pixels = doContrast(pixels, iw, ih, contrast); showPix(graph, pixels, "contrast pic"); repaint(); } } else if (evt.getSource() == exitItem) System.exit(0); }