From ce9a4d82c0544e795cd5c7c7a47a1573d8f46641 Mon Sep 17 00:00:00 2001
From: ulrich <not disclosed>
Date: Mon, 15 Jan 2018 17:27:13 +0000
Subject: [PATCH] readme ergaenzt
---
src/bilder.groovy | 60 +++++++++++++++++++++++++++++++++++++++---------------------
1 files changed, 39 insertions(+), 21 deletions(-)
diff --git a/src/bilder.groovy b/src/bilder.groovy
index c7e9131..00ce2a1 100644
--- a/src/bilder.groovy
+++ b/src/bilder.groovy
@@ -14,24 +14,32 @@
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. 0.75 fuer 75% des Originals
+ args[2] - Eingangsordner
+ args[3] - Ausgabeordner
*/
FileNameMap fileNameMap = URLConnection.getFileNameMap();
int width = Integer.parseInt(args[0]);
int height = width;
-String inDirName = args[1];
-String outDirName = args[2];
+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(outDirName);
File outFile = new File(outDir, fileList[i].getName());
System.out.println(outFile.getAbsolutePath());
@@ -41,17 +49,17 @@
try {
mediaTracker.waitForID(0);
if (!mediaTracker.isErrorAny()) {
-
- int quality = 90;
+
+ float quality = Float.parseFloat(args[1]);
float factor = (float) 0.0;
-
+
BufferedImage thumbImage;
int imageWidth = image.getWidth(null);
int imageHeight = image.getHeight(null);
int thumbWidth = width;
int thumbHeight = height;
if(imageWidth < width) {
- thumbWidth = imageWidth;
+ thumbWidth = imageWidth;
}
if(imageHeight < height) {
thumbHeight = imageHeight;
@@ -64,9 +72,9 @@
else {
thumbWidth = (int)(thumbHeight * imageRatio);
}
-
- String mimeType = fileNameMap.getContentTypeFor("file://" + fileList[i].getAbsolutePath());
-
+
+ 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
if(mimeType.contains("jpeg") || mimeType.contains("png")) {
@@ -77,7 +85,7 @@
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};
@@ -87,7 +95,7 @@
/*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];
@@ -104,8 +112,8 @@
ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
thumbImage = cOp.filter(thumbImage, null);
}
- // 30.7.2007: sharpening hinzugefuegt (Ende)
-
+ // 30.7.2007: sharpening hinzugefuegt (Ende)
+
String imgType;
if(mimeType.contains("jpg")) {
imgType = "jpg";
@@ -118,14 +126,24 @@
} else {
imgType = "jpg";
}
-
- ImageIO.write(thumbImage, imgType, outFile);
+
+ /*
+ 14.1.2018: Ausgabe um Qualitaetsparameter erweitert
+ Beginn
+ */
+ ImageWriter writer = ImageIO.getImageWritersByFormatName(imgType).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());
- }
-
+ }
}
} else {
System.out.println("fileList is null or empty");
-}
\ No newline at end of file
+}
--
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