package imageprocessing;

/**
 * @author Lincoln Ritter
 * This interface needs to be implemented by Image.
 */
public interface IImage
{
    /**
     * 
     * @return The width (number of columns) of the image 
     */
    public int getWidth();
    
    /**
     * 
     * @return THe height (number of rows) of the image
     */
    public int getHeight();
    
    /**
     * 
     * @param r The row of the pixel being set
     * @param c The column of the pixel being set
     * @param pixel an array of values to be set at location (r,c) ([R G B] ordering)
     * @throws IndexOutOfBoundsException thrown if the given row or column is out of bounds
     * @throws IllegalArgumentException thrown if the length of the values parameter is inappropriate for the image. 
     */
    public void setPixel(int r, int c, int[] values) throws IndexOutOfBoundsException, IllegalArgumentException;
    
    /**
     * 
     * @param r The row of the pixel being set
     * @param c The column of the pixel being set
     * @return and array of values at the given row and column ([R G B] ordering).
     * @throws IndexOutOfBoundsException thrown if the given row or column is out of bounds
     */
    public int[] getPixel(int r, int c) throws IndexOutOfBoundsException;
}