Verschiedene Groovy Skripte
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ulrich
2018-01-13 9ec1f886cdb2d60600ddabaeb340ddf70f82c9c7
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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 /*
9ec1f8 20     Skript zum Verkleinern von Bildern mit Hilfe
1cc542 21     der Klasse Bild
9ec1f8 22
U 23     args[0] - Anzahl Pixel an der laengsten Kante
24     args[1] - qualitaet JPEG, z.B. 75 fuer 75%
25     args[2] - Eingangsordner
26     args[3] - Ausgabeordner
1cc542 27 */
U 28
874757 29 FileNameMap fileNameMap = URLConnection.getFileNameMap();
U 30 int width = Integer.parseInt(args[0]);
31 int height = width;
9ec1f8 32 String inDirName = args[2];
U 33 String outDirName = args[3];
874757 34 File inFile = new File(inDirName);
1cc542 35 File[] fileList = inFile.listFiles();
U 36 if(fileList != null && fileList.length > 0) {
37     for(int i = 0; i < fileList.length; i++) {
38         System.out.println(fileList[i].getAbsolutePath());
9ec1f8 39
874757 40         File outDir = new File(outDirName);
1cc542 41         File outFile = new File(outDir, fileList[i].getName());
U 42         System.out.println(outFile.getAbsolutePath());
43         Image image = ImageIO.read(fileList[i]);
44     MediaTracker mediaTracker = new MediaTracker(new Container());
45     mediaTracker.addImage(image, 0);
46     try {
47       mediaTracker.waitForID(0);
48       if (!mediaTracker.isErrorAny()) {
9ec1f8 49
U 50         int quality = Integer.parseInt(args[1]);
874757 51         float factor = (float) 0.0;
9ec1f8 52
874757 53         BufferedImage thumbImage;
U 54         int imageWidth = image.getWidth(null);
1cc542 55         int imageHeight = image.getHeight(null);
874757 56         int thumbWidth = width;
1cc542 57         int thumbHeight = height;
874757 58         if(imageWidth < width) {
9ec1f8 59           thumbWidth = imageWidth;
874757 60         }
U 61         if(imageHeight < height) {
62           thumbHeight = imageHeight;
63         }
1cc542 64         double thumbRatio = (double)thumbWidth / (double)thumbHeight;
U 65         double imageRatio = (double)imageWidth / (double)imageHeight;
66         if (thumbRatio < imageRatio) {
874757 67           thumbHeight = (int)(thumbWidth / imageRatio);
1cc542 68         }
U 69         else {
874757 70           thumbWidth = (int)(thumbHeight * imageRatio);
1cc542 71         }
9ec1f8 72
U 73         String mimeType = fileNameMap.getContentTypeFor("file://" + fileList[i].getAbsolutePath());
74
1cc542 75         // draw original image to thumbnail image object and
U 76         // scale it to the new size on-the-fly
874757 77         if(mimeType.contains("jpeg") || mimeType.contains("png")) {
U 78           thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
79         } else {
80           thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_ARGB);
81         }
1cc542 82         Graphics2D graphics2D = thumbImage.createGraphics();
U 83         graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
84         graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);
9ec1f8 85
1cc542 86         // 30.7.2007: sharpening hinzugefuegt (Anfang)
U 87         //float factor = -0.15f; // minus = sharpen, plus = soften
88         //float[] sharpenArray = {0, -1, 0, -1, 5, -1, 0, -1, 0};
874757 89         /*
U 90           30.6.2013: sharpening als Weichmacher nur, wenn Bild < 400
91         */
92         /*if(thumbWidth < 400 || thumbHeight < 400) {
93           factor = 0.1f;
94         }*/
9ec1f8 95
1cc542 96         if(factor != (float) 0.0) {
U 97             //float[] array = {0, factor, 0, factor, 1-(factor*4), factor, 0, factor, 0};
98                         float[] array = new float[9];
99                         array[0] = 0;
100                         array[1] = factor;
101                         array[2] = 0;
102                         array[3] = factor;
103                         array[4] = 1-(factor*4);
104                         array[5] = factor;
105                         array[6] = 0;
106                         array[7] = factor;
107                         array[8] = 0;
108             Kernel kernel = new Kernel(3, 3, array);
109             ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
110             thumbImage = cOp.filter(thumbImage, null);
111         }
9ec1f8 112         // 30.7.2007: sharpening hinzugefuegt (Ende)
U 113
874757 114         String imgType;
U 115         if(mimeType.contains("jpg")) {
116           imgType = "jpg";
117         } else if(mimeType.contains("jpeg")) {
118           imgType = "jpg";
119         } else if(mimeType.contains("png")) {
120           imgType = "png";
121         } else if(mimeType.contains("gif")) {
122           imgType = "gif";
123         } else {
124           imgType = "jpg";
125         }
9ec1f8 126
U 127         ImageIO.write(thumbImage, imgType, outFile);
874757 128       }
U 129     } catch (InterruptedException ex) {
130       System.out.println("Error: " + ex.getLocalizedMessage());
9ec1f8 131     }
U 132
874757 133     }
U 134 } else {
135     System.out.println("fileList is null or empty");
9ec1f8 136 }