/* imageUtils.h
 */

//#include "colorUtils.h"

/**
 * A structure that represents a single pixel value using
 * the RGB (red-blue-green) color model.  Each integer
 * value is in the range [0, 255].
 */
typedef struct {
  int red;
  int green;
  int blue;
} Pixel;

/* Loads an image file specified by the given file name.
   The height and width are indicated in the two pass-by-pointer variables.
   The image is returned as a two-dimensional array of Pixel values
   of dimension (height x width) where the pixel at [0][0] corresponds to
   the top-left most pixel value.
 */
Pixel **LoadImage(const char *filePath, int *height, int *width);

/* Saves an image (same format as LoadImage() and is of the given 
   height x width) to the file specified by the given name.
 */
void SaveImage(const char *filePath, Pixel **image, int height, int width);


/* Creates a deep copy of the given image of the given height/width,
   returning the new copy as a 2-dimensional array of pixels.
 */
Pixel **CopyImage(Pixel **image, int height, int width);

/* Convert image to grayscale using specified mode.
 */
void ImageToGrayScale( Pixel **image, int height, int width, Mode m );


/* Extract specific colors
 */
void ExtractRGB( Pixel **image, int height, int width, Mode m );