From c238daba80c135c658cdf3821516bbbc709dbbcd Mon Sep 17 00:00:00 2001
From: ulrich <not disclosed>
Date: Sun, 14 Jan 2018 14:47:41 +0000
Subject: [PATCH] weiter kommentiert
---
src/bilder.groovy | 247 ++++++++++++++++--------------------------------
1 files changed, 83 insertions(+), 164 deletions(-)
diff --git a/src/bilder.groovy b/src/bilder.groovy
index 4bab866..90294bd 100644
--- a/src/bilder.groovy
+++ b/src/bilder.groovy
@@ -14,163 +14,88 @@
import java.net.FileNameMap;
import java.net.URLConnection;
import javax.imageio.ImageIO;
+import javax.imageio.ImageWriter;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.stream.FileImageOutputStream;
+import javax.imageio.IIOImage;
import java.lang.Integer;
/*
- Skript zum Verkleinern von Bildern mit Hilfe
- der Klasse Bild
+ Java-Code zum Verkleinern von Bildern
+
+ args[0] - Anzahl Pixel an der laengsten Kante
+ args[1] - qualitaet JPEG, z.B. 75 fuer 75%
+ args[2] - Eingangsordner
+ args[3] - Ausgabeordner
*/
-File inFile = new File(args[1]);
+FileNameMap fileNameMap = URLConnection.getFileNameMap();
+int width = Integer.parseInt(args[0]);
+int height = width;
+String inDirName = args[2];
+String outDirName = args[3];
+File inFile = new File(inDirName);
File[] fileList = inFile.listFiles();
if(fileList != null && fileList.length > 0) {
for(int i = 0; i < fileList.length; i++) {
System.out.println(fileList[i].getAbsolutePath());
-
- File outDir = new File(args[2]);
+
+ File outDir = new File(outDirName);
File outFile = new File(outDir, fileList[i].getName());
System.out.println(outFile.getAbsolutePath());
- //java.awt.Image image = (java.awt.Image) Toolkit.getDefaultToolkit().getImage(fileList[i].getAbsolutePath());
Image image = ImageIO.read(fileList[i]);
MediaTracker mediaTracker = new MediaTracker(new Container());
mediaTracker.addImage(image, 0);
try {
mediaTracker.waitForID(0);
if (!mediaTracker.isErrorAny()) {
- Bild bild = new Bild();
- bild.writeImageFile(image, Integer.parseInt(args[0]), bild.getMimeType(fileList[i]), new File(outDir, fileList[i].getName()).getAbsolutePath());
- }
- } catch (InterruptedException ex) {
- System.out.println("Error: " + ex.getLocalizedMessage());
- }
-
- }
-} else {
- System.out.println("fileList is null or empty");
-}
+ float quality = Float.parseFloat(args[1]);
+ float factor = (float) 0.0;
-
-/*
- Klasse Bild
-*/
-
-public class Bild {
-
- public static final int WINZIG = 0;
- public static final int KLEIN = 1;
- public static final int SEMI = 2;
- public static final int MITTEL = 3;
- public static final int GROSS = 4;
-
- public String[] GRNAME; // = {"-w", "-k", "-s", "-m", "-g"};
- public int[] GR; // = {120, 240, 500, 700, 1200};
-
- public Bild() {
- GRNAME = new String[5]
- GRNAME[0] = "-w";
- GRNAME[1] = "-k";
- GRNAME[2] = "-s";
- GRNAME[3] = "-m";
- GRNAME[4] = "-g";
-
- GR = new int[5];
- GR[0] = 120;
- GR[1] = 240;
- GR[2] = 500;
- GR[3] = 700;
- GR[4] = 1200;
-
- }
-
- public void writeImageStream(Image image, int gr, String mimeType, OutputStream out) throws InterruptedException, IOException {
- ImageIO.write(getReducedImage(image, gr, mimeType), imgType(mimeType), out);
- }
-
- /**
- *
- * @param image
- * @param gr
- * @param mimeType
- * @param vName Name der verkleinerten Datei
- * @throws InterruptedException
- * @throws IOException
- */
- public void writeImageFile(BufferedImage image, int gr, String mimeType, String vName) throws InterruptedException, IOException {
- ImageIO.write(getReducedImage(image, gr, mimeType), imgType(mimeType), new File(vName));
- }
-
- private BufferedImage getReducedImage(Image image, int gr, String mimeType) throws InterruptedException, IOException {
- BufferedImage img;
- int q = 90;
- float sh = (float) 0.0;
- if(mimeType.contains("jpeg")) {
- img = getReducedImageImpl(image, gr, gr, q, sh, false);
- } else {
- img = getReducedImageImpl(image, gr, gr, q, sh, true);
- }
- return img;
- }
-
- /**
- * Eine in Groesse und Qualitaet verringerte Bilddatei erzeugen
- * @param image Ablageort und Name der Bilddatei
- * @param width neue Breite
- * @param height neue hoehe
- * @param quality neue Qualitaet (0 - 100)
- * @param factor Faktor fuer Schaerfe / Unschaerfe (z.B. -0.15f fuer leichte Unschaerfe, 0.05f fuer leichtes Nachschaerfen)
- * @param withTransparency ob Transparenz benoetigt wird
- * @return neues, in Groesse und Qualitaet entsprechend verringertes Bild
- * @throws java.lang.InterruptedException
- * @throws java.io.FileNotFoundException
- */
- public BufferedImage getReducedImageImpl(BufferedImage image, int width, int height, int quality, float factor, boolean withTransparency)
- throws InterruptedException, FileNotFoundException, IOException {
-
- int imageWidth = image.getWidth(null);
+ BufferedImage thumbImage;
+ int imageWidth = image.getWidth(null);
int imageHeight = image.getHeight(null);
-
- int thumbWidth = width;
+ int thumbWidth = width;
int thumbHeight = height;
- if(imageWidth < width) {
- thumbWidth = imageWidth;
- }
- if(imageHeight < height) {
- thumbHeight = imageHeight;
- }
+ if(imageWidth < width) {
+ thumbWidth = imageWidth;
+ }
+ if(imageHeight < height) {
+ thumbHeight = imageHeight;
+ }
double thumbRatio = (double)thumbWidth / (double)thumbHeight;
double imageRatio = (double)imageWidth / (double)imageHeight;
if (thumbRatio < imageRatio) {
- thumbHeight = (int)(thumbWidth / imageRatio);
+ thumbHeight = (int)(thumbWidth / imageRatio);
}
else {
- thumbWidth = (int)(thumbHeight * imageRatio);
+ thumbWidth = (int)(thumbHeight * imageRatio);
}
-
+
+ String mimeType = fileNameMap.getContentTypeFor("file://" + fileList[i].getAbsolutePath());
+
// draw original image to thumbnail image object and
// scale it to the new size on-the-fly
- //BufferedImage thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
- BufferedImage thumbImage;
- if(withTransparency) {
- thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_ARGB);
- } else {
- thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
- }
+ if(mimeType.contains("jpeg") || mimeType.contains("png")) {
+ thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
+ } else {
+ thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_ARGB);
+ }
Graphics2D graphics2D = thumbImage.createGraphics();
graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);
-
+
// 30.7.2007: sharpening hinzugefuegt (Anfang)
//float factor = -0.15f; // minus = sharpen, plus = soften
//float[] sharpenArray = {0, -1, 0, -1, 5, -1, 0, -1, 0};
-
- /*
- 30.6.2013: sharpening als Weichmacher nur, wenn Bild < 400
- */
- /*if(thumbWidth < 400 || thumbHeight < 400) {
- factor = 0.1f;
- }*/
-
+ /*
+ 30.6.2013: sharpening als Weichmacher nur, wenn Bild < 400
+ */
+ /*if(thumbWidth < 400 || thumbHeight < 400) {
+ factor = 0.1f;
+ }*/
+
if(factor != (float) 0.0) {
//float[] array = {0, factor, 0, factor, 1-(factor*4), factor, 0, factor, 0};
float[] array = new float[9];
@@ -188,47 +113,41 @@
thumbImage = cOp.filter(thumbImage, null);
}
// 30.7.2007: sharpening hinzugefuegt (Ende)
-
- return thumbImage;
- }
-
- public String imgType(String mimeType) {
- String imgType;
- if(mimeType.contains("jpg")) {
- imgType = "jpg";
- } else if(mimeType.contains("jpeg")) {
- imgType = "jpg";
- } else if(mimeType.contains("png")) {
- imgType = "png";
- } else if(mimeType.contains("gif")) {
- imgType = "gif";
- } else {
- imgType = "jpg";
+
+ String imgType;
+ if(mimeType.contains("jpg")) {
+ imgType = "jpg";
+ } else if(mimeType.contains("jpeg")) {
+ imgType = "jpg";
+ } else if(mimeType.contains("png")) {
+ imgType = "png";
+ } else if(mimeType.contains("gif")) {
+ imgType = "gif";
+ } else {
+ imgType = "jpg";
+ }
+
+ //ImageIO.write(thumbImage, imgType, outFile);
+
+ /* 14.1.2018 Beginn */
+ //File outfile =new File(“/opt/images/modified.jpg”);
+ ImageWriter writer = ImageIO.getImageWritersByFormatName(imgType).next();
+ //ImageWriter writer = iter.next();
+ ImageWriteParam iwp = writer.getDefaultWriteParam();
+ iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
+ iwp.setCompressionQuality(quality);
+ writer.setOutput(new FileImageOutputStream(outFile));
+ writer.write(null, new IIOImage(thumbImage, null, null),iwp);
+ writer.dispose();
+ /* 14.1.2018 Ende */
+
+
+ }
+ } catch (InterruptedException ex) {
+ System.out.println("Error: " + ex.getLocalizedMessage());
}
- return imgType;
- }
-
- /**
- *
- * @param v Bild.WINZIG .. Bild.GROSS
- * @return Länge der längsten Kante in Bildpunkten
- */
- public int getVariantenGroesse(int v) {
- return GR[v];
- }
-
- public String getVariantenName(int v) {
- return GRNAME[v];
- }
-
- public String getMimeType(File file) {
- String absName = file.getAbsolutePath();
- FileNameMap fileNameMap = URLConnection.getFileNameMap();
- return fileNameMap.getContentTypeFor("file://" + absName);
- }
+
+ }
+} else {
+ System.out.println("fileList is null or empty");
}
-
-
-
-
-
--
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