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1 files changed, 190 insertions, 0 deletions

diff --git a/labs/lab02_simpleRGB/SimpleRGB.java b/labs/lab02_simpleRGB/SimpleRGB.java
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+++ b/labs/lab02_simpleRGB/SimpleRGB.java
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+
+public class SimpleRGB
+{
+	// TO DO: Instant Variables
+	private int width;
+	private int height;
+	private int[] reds;
+	private int[] blues;
+	private int[] greens;
+
+	public SimpleRGB(int aWidth, int aHeight)
+	{
+		this.width = aWidth;
+		this.height = aHeight;
+		reds = new int[width*height];
+		blues = new int[width*height];
+		greens = new int[width*height];
+	}
+	
+	/**
+	 * Gets the width of this image.
+	 * @return the width of this image.
+	 */
+	public int getWidth()
+	{
+		return this.width;
+	}
+	
+	/**
+	 * Gets the height of this image.
+	 * @return the height of this image.
+	 */
+	public int getHeight()
+	{
+		return this.height;
+	}
+	
+	/**
+	 * Sets the red value at coordinate (x,y) to aRed.
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @param aRed the red value (0 - 255)
+	 */
+	public void setRed(int x, int y, int aRed)
+	{
+		reds[(y*this.width) + x] = aRed;
+	}
+
+	/**
+	 * Sets the green value at coordinate (x,y) to aGreen.
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @param aGreen the green value (0 - 255)
+	 */
+	public void setGreen(int x, int y, int aGreen)
+	{
+		greens[(y*this.width)+x] = aGreen;
+	}
+
+	/**
+	 * Sets the blue value at coordinate (x,y) to aBlue.
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @param aBlue the blue value (0 - 255)
+	 */
+	public void setBlue(int x, int y, int aBlue)
+	{
+		blues[(y*this.width)+x] = aBlue;
+	}
+	
+	/**
+	 * Gets the red value at coordinate (x,y).
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @return the value of red at coordinate (x,y). 
+	 */
+	public int getRed(int x, int y)
+	{
+		return reds[(y*this.width) + x];
+	}
+
+	/**
+	 * Gets the green value at coordinate (x,y).
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @return the value of green at coordinate (x,y). 
+	 */
+	public int getGreen(int x, int y)
+	{
+		return greens[(y*this.width)+x];
+	}
+	
+	/**
+	 * Gets the blue value at coordinate (x,y).
+	 * @param x the x coordinate of this image.
+	 * @param y the y coordinate of this image.
+	 * @return the value of blue at coordinate (x,y). 
+	 */
+	public int getBlue(int x, int y)
+	{
+		return blues[(y*this.width) + x];
+	}
+	
+	/**
+	 * Get the NEW image containing only the red color.
+	 * The red values of this new image should be exactly
+	 * the same as red value of this image. The green and
+	 * blue values of this new image should be 0s.
+	 * @return the NEW image (SimpleRGB) containing only
+	 * the red color of this image.
+	 */
+	public SimpleRGB getRedImage()
+	{
+		SimpleRGB output = new SimpleRGB(this.width,this.height);
+		for(int i = 0; i < reds.length; i++)
+		{
+			output.setRed(i%this.width,(i/this.width),reds[i]);
+		}
+		return output;
+	}
+	
+	/**
+	 * Get the NEW image containing only the green color.
+	 * The green values of this new image should be exactly
+	 * the same as green value of this image. The red and
+	 * blue values of this new image should be 0s.
+	 * @return the NEW image (SimpleRGB) containing only
+	 * the green color of this image.
+	 */
+	public SimpleRGB getGreenImage()
+	{
+		SimpleRGB output = new SimpleRGB(this.width,this.height);
+		for(int i = 0; i < greens.length; i++)
+		{
+			output.setGreen(i%this.width,(i/this.width),greens[i]);
+		}
+		return output;
+	}
+	
+	/**
+	 * Get the NEW image containing only the blue color.
+	 * The blue values of this new image should be exactly
+	 * the same as blue value of this image. The red and
+	 * green values of this new image should be 0s.
+	 * @return the NEW image (SimpleRGB) containing only
+	 * the blue color of this image.
+	 */
+	public SimpleRGB getBlueImage()
+	{
+		SimpleRGB output = new SimpleRGB(this.width,this.height);
+		for(int i = 0; i < blues.length; i++)
+		{
+			output.setBlue(i%this.width,(i/this.width),blues[i]);
+		}
+		return output;
+	}
+	
+	/**
+	 * Get the NEW image representing the greyscale of this
+	 * image. The grey colors are colors that the red, green
+	 * and blue value are exactly the same. To convert an RGB
+	 * image into a greyscale image, use the following formula
+	 * to calculate the new value.
+	 *    (0.21 * red) + (0.72 * green) + (0.07 * blue)
+	 * For example, suppose the (R,G,B) value of this image at
+	 * coordinate (10,20) are (10,100,200), since
+	 *    (0.21 * 10) + (0.72 * 100) + (0.07 * 200) = 88
+	 * the (R,G,B) value of the new greyscale image at (10,20)
+	 * should be (88,88,88).
+	 * @return the NEW image representing the greyscale of this
+	 * image.
+	 */
+	/**
+	 *We're not british!
+	 *It's grEy in England,
+	 *and grAy in America!
+	 */
+	public SimpleRGB getGreyImage()
+	{
+		SimpleRGB output = new SimpleRGB(this.width,this.height);
+		for(int i = 0; i < reds.length; i++)
+		{
+			int gray = (int) ((reds[i]*0.21) + (greens[i]*0.72) + (blues[i]*0.07));
+			output.setRed(i%this.width,(i/this.width),gray);
+			output.setGreen(i%this.width,(i/this.width),gray);
+			output.setBlue(i%this.width,(i/this.width),gray);
+		}
+		return output;
+	}
+}