| commit | author | age | ||
| 1cc542 | 1 | import java.awt.Graphics2D; |
| U | 2 | import java.awt.Image; |
| 3 | import java.awt.RenderingHints; | |
| 4 | import java.awt.image.BufferedImage; | |
| 5 | import java.awt.image.ConvolveOp; | |
| 6 | import java.awt.image.Kernel; | |
| 7 | import java.awt.MediaTracker; | |
| 8 | import java.awt.Container; | |
| 9 | import java.awt.Toolkit; | |
| 10 | import java.io.File; | |
| 11 | import java.io.FileNotFoundException; | |
| 12 | import java.io.IOException; | |
| 13 | import java.io.OutputStream; | |
| 14 | import java.net.FileNameMap; | |
| 15 | import java.net.URLConnection; | |
| 16 | import javax.imageio.ImageIO; | |
| 17 | import java.lang.Integer; | |
| 18 | ||
| 19 | /* | |
| 20 | Skript zum Verkleinern von Bildern mit Hilfe | |
| 21 | der Klasse Bild | |
| 22 | */ | |
| 23 | ||
| 24 | File inFile = new File(args[1]); | |
| 25 | File[] fileList = inFile.listFiles(); | |
| 26 | if(fileList != null && fileList.length > 0) { | |
| 27 | for(int i = 0; i < fileList.length; i++) { | |
| 28 | System.out.println(fileList[i].getAbsolutePath()); | |
| 29 | ||
| 30 | File outDir = new File(args[2]); | |
| 31 | File outFile = new File(outDir, fileList[i].getName()); | |
| 32 | System.out.println(outFile.getAbsolutePath()); | |
| 33 | //java.awt.Image image = (java.awt.Image) Toolkit.getDefaultToolkit().getImage(fileList[i].getAbsolutePath()); | |
| 34 | Image image = ImageIO.read(fileList[i]); | |
| 35 | MediaTracker mediaTracker = new MediaTracker(new Container()); | |
| 36 | mediaTracker.addImage(image, 0); | |
| 37 | try { | |
| 38 | mediaTracker.waitForID(0); | |
| 39 | if (!mediaTracker.isErrorAny()) { | |
| 40 | Bild bild = new Bild(); | |
| 41 | bild.writeImageFile(image, Integer.parseInt(args[0]), bild.getMimeType(fileList[i]), new File(outDir, fileList[i].getName()).getAbsolutePath()); | |
| 42 | } | |
| 43 | } catch (InterruptedException ex) { | |
| 44 | System.out.println("Error: " + ex.getLocalizedMessage()); | |
| 45 | } | |
| 46 | ||
| 47 | } | |
| 48 | } else { | |
| 49 | System.out.println("fileList is null or empty"); | |
| 50 | } | |
| 51 | ||
| 52 | ||
| 53 | ||
| 54 | /* | |
| 55 | Klasse Bild | |
| 56 | */ | |
| 57 | ||
| 58 | public class Bild { | |
| 59 | ||
| 60 | public static final int WINZIG = 0; | |
| 61 | public static final int KLEIN = 1; | |
| 62 | public static final int SEMI = 2; | |
| 63 | public static final int MITTEL = 3; | |
| 64 | public static final int GROSS = 4; | |
| 65 | ||
| 66 | public String[] GRNAME; // = {"-w", "-k", "-s", "-m", "-g"}; | |
| 67 | public int[] GR; // = {120, 240, 500, 700, 1200}; | |
| 68 | ||
| 69 | public Bild() { | |
| 70 | GRNAME = new String[5] | |
| 71 | GRNAME[0] = "-w"; | |
| 72 | GRNAME[1] = "-k"; | |
| 73 | GRNAME[2] = "-s"; | |
| 74 | GRNAME[3] = "-m"; | |
| 75 | GRNAME[4] = "-g"; | |
| 76 | ||
| 77 | GR = new int[5]; | |
| 78 | GR[0] = 120; | |
| 79 | GR[1] = 240; | |
| 80 | GR[2] = 500; | |
| 81 | GR[3] = 700; | |
| 82 | GR[4] = 1200; | |
| 83 | ||
| 84 | } | |
| 85 | ||
| 86 | public void writeImageStream(Image image, int gr, String mimeType, OutputStream out) throws InterruptedException, IOException { | |
| 87 | ImageIO.write(getReducedImage(image, gr, mimeType), imgType(mimeType), out); | |
| 88 | } | |
| 89 | ||
| 90 | /** | |
| 91 | * | |
| 92 | * @param image | |
| 93 | * @param gr | |
| 94 | * @param mimeType | |
| 95 | * @param vName Name der verkleinerten Datei | |
| 96 | * @throws InterruptedException | |
| 97 | * @throws IOException | |
| 98 | */ | |
| 99 | public void writeImageFile(BufferedImage image, int gr, String mimeType, String vName) throws InterruptedException, IOException { | |
| 100 | ImageIO.write(getReducedImage(image, gr, mimeType), imgType(mimeType), new File(vName)); | |
| 101 | } | |
| 102 | ||
| 103 | private BufferedImage getReducedImage(Image image, int gr, String mimeType) throws InterruptedException, IOException { | |
| 104 | BufferedImage img; | |
| 105 | int q = 90; | |
| 106 | float sh = (float) 0.0; | |
| 107 | if(mimeType.contains("jpeg")) { | |
| 108 | img = getReducedImageImpl(image, gr, gr, q, sh, false); | |
| 109 | } else { | |
| 110 | img = getReducedImageImpl(image, gr, gr, q, sh, true); | |
| 111 | } | |
| 112 | return img; | |
| 113 | } | |
| 114 | ||
| 115 | /** | |
| 116 | * Eine in Groesse und Qualitaet verringerte Bilddatei erzeugen | |
| 117 | * @param image Ablageort und Name der Bilddatei | |
| 118 | * @param width neue Breite | |
| 119 | * @param height neue hoehe | |
| 120 | * @param quality neue Qualitaet (0 - 100) | |
| 121 | * @param factor Faktor fuer Schaerfe / Unschaerfe (z.B. -0.15f fuer leichte Unschaerfe, 0.05f fuer leichtes Nachschaerfen) | |
| 122 | * @param withTransparency ob Transparenz benoetigt wird | |
| 123 | * @return neues, in Groesse und Qualitaet entsprechend verringertes Bild | |
| 124 | * @throws java.lang.InterruptedException | |
| 125 | * @throws java.io.FileNotFoundException | |
| 126 | */ | |
| 127 | public BufferedImage getReducedImageImpl(BufferedImage image, int width, int height, int quality, float factor, boolean withTransparency) | |
| 128 | throws InterruptedException, FileNotFoundException, IOException { | |
| 129 | ||
| 130 | int imageWidth = image.getWidth(null); | |
| 131 | int imageHeight = image.getHeight(null); | |
| 132 | ||
| 133 | int thumbWidth = width; | |
| 134 | int thumbHeight = height; | |
| 135 | if(imageWidth < width) { | |
| 136 | thumbWidth = imageWidth; | |
| 137 | } | |
| 138 | if(imageHeight < height) { | |
| 139 | thumbHeight = imageHeight; | |
| 140 | } | |
| 141 | double thumbRatio = (double)thumbWidth / (double)thumbHeight; | |
| 142 | double imageRatio = (double)imageWidth / (double)imageHeight; | |
| 143 | if (thumbRatio < imageRatio) { | |
| 144 | thumbHeight = (int)(thumbWidth / imageRatio); | |
| 145 | } | |
| 146 | else { | |
| 147 | thumbWidth = (int)(thumbHeight * imageRatio); | |
| 148 | } | |
| 149 | ||
| 150 | // draw original image to thumbnail image object and | |
| 151 | // scale it to the new size on-the-fly | |
| 152 | //BufferedImage thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB); | |
| 153 | BufferedImage thumbImage; | |
| 154 | if(withTransparency) { | |
| 155 | thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_ARGB); | |
| 156 | } else { | |
| 157 | thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB); | |
| 158 | } | |
| 159 | Graphics2D graphics2D = thumbImage.createGraphics(); | |
| 160 | graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); | |
| 161 | graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null); | |
| 162 | ||
| 163 | // 30.7.2007: sharpening hinzugefuegt (Anfang) | |
| 164 | //float factor = -0.15f; // minus = sharpen, plus = soften | |
| 165 | //float[] sharpenArray = {0, -1, 0, -1, 5, -1, 0, -1, 0}; | |
| 166 | ||
| 167 | /* | |
| 168 | 30.6.2013: sharpening als Weichmacher nur, wenn Bild < 400 | |
| 169 | */ | |
| 170 | /*if(thumbWidth < 400 || thumbHeight < 400) { | |
| 171 | factor = 0.1f; | |
| 172 | }*/ | |
| 173 | ||
| 174 | if(factor != (float) 0.0) { | |
| 175 | //float[] array = {0, factor, 0, factor, 1-(factor*4), factor, 0, factor, 0}; | |
| 176 | float[] array = new float[9]; | |
| 177 | array[0] = 0; | |
| 178 | array[1] = factor; | |
| 179 | array[2] = 0; | |
| 180 | array[3] = factor; | |
| 181 | array[4] = 1-(factor*4); | |
| 182 | array[5] = factor; | |
| 183 | array[6] = 0; | |
| 184 | array[7] = factor; | |
| 185 | array[8] = 0; | |
| 186 | Kernel kernel = new Kernel(3, 3, array); | |
| 187 | ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null); | |
| 188 | thumbImage = cOp.filter(thumbImage, null); | |
| 189 | } | |
| 190 | // 30.7.2007: sharpening hinzugefuegt (Ende) | |
| 191 | ||
| 192 | return thumbImage; | |
| 193 | } | |
| 194 | ||
| 195 | public String imgType(String mimeType) { | |
| 196 | String imgType; | |
| 197 | if(mimeType.contains("jpg")) { | |
| 198 | imgType = "jpg"; | |
| 199 | } else if(mimeType.contains("jpeg")) { | |
| 200 | imgType = "jpg"; | |
| 201 | } else if(mimeType.contains("png")) { | |
| 202 | imgType = "png"; | |
| 203 | } else if(mimeType.contains("gif")) { | |
| 204 | imgType = "gif"; | |
| 205 | } else { | |
| 206 | imgType = "jpg"; | |
| 207 | } | |
| 208 | return imgType; | |
| 209 | } | |
| 210 | ||
| 211 | /** | |
| 212 | * | |
| 213 | * @param v Bild.WINZIG .. Bild.GROSS | |
| 214 | * @return Länge der längsten Kante in Bildpunkten | |
| 215 | */ | |
| 216 | public int getVariantenGroesse(int v) { | |
| 217 | return GR[v]; | |
| 218 | } | |
| 219 | ||
| 220 | public String getVariantenName(int v) { | |
| 221 | return GRNAME[v]; | |
| 222 | } | |
| 223 | ||
| 224 | public String getMimeType(File file) { | |
| 225 | String absName = file.getAbsolutePath(); | |
| 226 | FileNameMap fileNameMap = URLConnection.getFileNameMap(); | |
| 227 | return fileNameMap.getContentTypeFor("file://" + absName); | |
| 228 | } | |
| 229 | } | |
| 230 | ||
| 231 | ||
| 232 | ||
| 233 | ||
| 234 | ||
