X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=imagesqueeze.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fimagesqueeze%2Fcodec%2FOperatingContext.java;h=b79e1e63c7cc0ee4b9af48c7d0198e0c6e221879;hp=bac16305552d9c7db9892bad24732a81dc3882a8;hb=HEAD;hpb=c7d0b8e1723045c0df086d9214a35f54db47684c

diff --git a/src/main/java/eu/svjatoslav/imagesqueeze/codec/OperatingContext.java b/src/main/java/eu/svjatoslav/imagesqueeze/codec/OperatingContext.java
index bac1630..b79e1e6 100755
--- a/src/main/java/eu/svjatoslav/imagesqueeze/codec/OperatingContext.java
+++ b/src/main/java/eu/svjatoslav/imagesqueeze/codec/OperatingContext.java
@@ -1,51 +1,59 @@
+/*
+ * Image codec. Author: Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ * This project is released under Creative Commons Zero (CC0) license.
+ */
 package eu.svjatoslav.imagesqueeze.codec;
 
-public class OperatingContext {
-
-	Image image;
-	byte[] yMap;
-	byte[] uMap;
-	byte[] vMap;
-	ColorStats colorStats = new ColorStats();
-	
-	public OperatingContext(){
-	}
-
-	public void initialize(Image image, byte [] brightnessMap, byte [] colornessMap, byte [] colorMap){
-		this.image = image;
-		this.yMap = brightnessMap;
-		this.uMap = colornessMap;
-		this.vMap = colorMap;
-		
-		colorStats.reset();
-	}
-	
-	public void measureNeighborEncode(int x, int y){
-		if ((y >= 0) && (y < image.metaData.height) && (x >= 0) && (x < image.metaData.width)){
-
-			int neighborIndex = y * image.metaData.width + x;
-			
-			colorStats.ySum = colorStats.ySum + ImageEncoder.byteToInt(yMap[neighborIndex]);
-			colorStats.uSum = colorStats.uSum + ImageEncoder.byteToInt(uMap[neighborIndex]);
-			colorStats.vSum = colorStats.vSum + ImageEncoder.byteToInt(vMap[neighborIndex]);
-			colorStats.pixelCount++;
-		}
-	}
-
-	public int getYRange(int index){
-		int brightness = ImageEncoder.byteToInt(yMap[index]);				
-		return Math.abs(brightness - colorStats.getAverageY());		
-	}
-
-	public int getURange(int index){
-		int colorness = ImageEncoder.byteToInt(uMap[index]);				
-		return Math.abs(colorness - colorStats.getAverageU());		
-	}
-
-	public int getVRange(int index){
-		int color = ImageEncoder.byteToInt(vMap[index]);				
-		return Math.abs(color - colorStats.getAverageV());		
-	}
-
-		
+class OperatingContext {
+
+    final ColorStats colorStats = new ColorStats();
+    private Image image;
+    private byte[] yMap;
+    private byte[] uMap;
+    private byte[] vMap;
+
+    public OperatingContext() {
+    }
+
+    public int getURange(final int index) {
+        final int colorness = ImageEncoder.byteToInt(uMap[index]);
+        return Math.abs(colorness - colorStats.getAverageU());
+    }
+
+    public int getVRange(final int index) {
+        final int color = ImageEncoder.byteToInt(vMap[index]);
+        return Math.abs(color - colorStats.getAverageV());
+    }
+
+    public int getYRange(final int index) {
+        final int brightness = ImageEncoder.byteToInt(yMap[index]);
+        return Math.abs(brightness - colorStats.getAverageY());
+    }
+
+    public void initialize(final Image image, final byte[] brightnessMap,
+                           final byte[] colornessMap, final byte[] colorMap) {
+        this.image = image;
+        yMap = brightnessMap;
+        uMap = colornessMap;
+        vMap = colorMap;
+
+        colorStats.reset();
+    }
+
+    public void measureNeighborEncode(final int x, final int y) {
+        if ((y >= 0) && (y < image.metaData.height) && (x >= 0)
+                && (x < image.metaData.width)) {
+
+            final int neighborIndex = (y * image.metaData.width) + x;
+
+            colorStats.ySum = colorStats.ySum
+                    + ImageEncoder.byteToInt(yMap[neighborIndex]);
+            colorStats.uSum = colorStats.uSum
+                    + ImageEncoder.byteToInt(uMap[neighborIndex]);
+            colorStats.vSum = colorStats.vSum
+                    + ImageEncoder.byteToInt(vMap[neighborIndex]);
+            colorStats.pixelCount++;
+        }
+    }
+
 }