Finished SPS

Author: xiaomei7

README.md

@@ -1,5 +1,5 @@
 /**
- * Print out total number of babies born, as well as for each gender, in a given CSV file of baby name data.
+ * Mini Project for week 4.
  * 
  * @author Xiaomei Wang
  */

SPS_Week4/BabyNames/BabyNames.java

@@ -1,8 +1,8 @@
 #BlueJ package file
-editor.fx.0.height=873
-editor.fx.0.width=1440
+editor.fx.0.height=0
+editor.fx.0.width=0
 editor.fx.0.x=0
-editor.fx.0.y=23
+editor.fx.0.y=0
 objectbench.height=164
 objectbench.width=776
 package.divider.horizontal=0.6

SPS_Week4/BabyNames/package.bluej

@@ -0,0 +1,9 @@
+#BlueJ class context
+comment0.target=BatchGrayscale
+comment1.params=inImage
+comment1.target=edu.duke.ImageResource\ makeGray(edu.duke.ImageResource)
+comment2.params=
+comment2.target=void\ selectAndConvert()
+comment3.params=
+comment3.target=void\ testGray()
+numComments=4

SPS_Week4/BatchGrayscale/BatchGrayscale.class

@@ -0,0 +1,51 @@
+/**
+ * Convert any number of images to a gray scale version by setting all color components of each pixel to the same value.
+ * 
+ * @author Xiaomei Wang
+ */
+import edu.duke.*;
+import java.io.*;
+
+public class BatchGrayscale {
+	//I started with the image I wanted (inImage)
+	public ImageResource makeGray(ImageResource inImage) {
+		//I made a blank image of the same size
+		ImageResource outImage = new ImageResource(inImage.getWidth(), inImage.getHeight());
+		//for each pixel in outImage
+		for (Pixel pixel: outImage.pixels()) {
+			//look at the corresponding pixel in inImage
+			Pixel inPixel = inImage.getPixel(pixel.getX(), pixel.getY());
+			//compute inPixel's red + inPixel's blue + inPixel's green
+			//divide that sum by 3 (call it average)
+			int average = (inPixel.getRed() + inPixel.getBlue() + inPixel.getGreen())/3;
+			//set pixel's red to average
+			pixel.setRed(average);
+			//set pixel's green to average
+			pixel.setGreen(average);
+			//set pixel's blue to average
+			pixel.setBlue(average);
+		}
+		//outImage is your answer
+		return outImage;
+	}
+
+	public void selectAndConvert () {
+		DirectoryResource dr = new DirectoryResource();
+		for (File f : dr.selectedFiles()) {
+			ImageResource inImage = new ImageResource(f);
+			ImageResource gray = makeGray(inImage);
+
+			String fname = inImage.getFileName();
+			String newName = "gray-" + fname;
+			gray.setFileName(newName);
+			gray.draw();
+			gray.save();
+		}
+	}
+
+	public void testGray() {
+		ImageResource ir = new ImageResource();
+		ImageResource gray = makeGray(ir);
+		gray.draw();
+	}
+}

SPS_Week4/BatchGrayscale/BatchGrayscale.ctxt

@@ -0,0 +1,33 @@
+#BlueJ package file
+editor.fx.0.height=0
+editor.fx.0.width=0
+editor.fx.0.x=0
+editor.fx.0.y=0
+objectbench.height=164
+objectbench.width=776
+package.divider.horizontal=0.6
+package.divider.vertical=0.6845018450184502
+package.editor.height=364
+package.editor.width=674
+package.editor.x=333
+package.editor.y=123
+package.frame.height=600
+package.frame.width=800
+package.numDependencies=0
+package.numTargets=1
+package.showExtends=true
+package.showUses=true
+project.charset=UTF-8
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=50
+target1.name=BatchGrayscale
+target1.showInterface=false
+target1.type=ClassTarget
+target1.typeParameters=
+target1.width=120
+target1.x=70
+target1.y=10