// Headers
#include <opencv2/core/core.hpp> 
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/opencv.hpp>
#include <iostream>

using namespace cv;


/*
blue outline RGB = 38, 41, 124
pacman RGB = 255, 234, 4
power pellet = 255, 181, 187
pips = 200, 195, 185
red ghost = 255, 24, 2
purple ghost = 246, 195, 248
orange ghost = 244, 179, 68
blue ghost = 0, 223, 251
words = 223, 221, 227
*/

// compile command
// cl /EHsc part1AFirst.cpp /I D:\installs\opencv\opencv\build\include /link /LIBPATH:D:\installs\opencv\opencv\build\x64\vc15\lib opencv_world451.lib

/*		
imshow("window", dummy);
waitKey(0);
destroyWindow("window");
*/

int main(int argc, char* argv[]) {
	
	// Load input video
	//  If your video is in a different source folder than your code, 
	//  make sure you specify the directory correctly!
	VideoCapture input_cap("input1a1.avi");   
	
	// Check validity of target file
	if(!input_cap.isOpened()) {
		std::cout << "Input video not found." << std::endl;
		return -1;
	}
	
	// Set up target output video
	/*	usage: VideoWriter(filename, encoding, framerate, Size)
	 *		in our case, cv_cap_prop_* means "get property of capture"
	 *	 	we want our output to have the same properties as the input!
	 */
	
	VideoWriter output_cap("brownWalls.avi", 
							input_cap.get(CAP_PROP_FOURCC),
							input_cap.get(CAP_PROP_FPS),
							Size(input_cap.get(CAP_PROP_FRAME_WIDTH),
							input_cap.get(CAP_PROP_FRAME_HEIGHT)));
	
	// Again, check validity of target output file
	if(!output_cap.isOpened()) {
		std::cout << "Could not create output file." << std::endl;
		return -1;
	}
	
	// Loop to read from input one frame at a time, write text on frame, and
	// copy to output video
	Mat frame;
	while(input_cap.read(frame)) {
		for(int i = 0; i < frame.cols; i++){
			for(int j = 0; j < frame.rows; j++){
				int blueChan = frame.at<Vec3b>(Point(i, j))[0];
				int greenChan = frame.at<Vec3b>(Point(i, j))[1];
				int redChan = frame.at<Vec3b>(Point(i, j))[2];
				
				if(blueChan >= 64 && blueChan <= 184){
					if(greenChan >= 0 && greenChan <= 101){
						if(redChan >= 0 && redChan <= 98){
							frame.at<Vec3b>(Point(i, j))[0] = 60;
							frame.at<Vec3b>(Point(i, j))[1] = 78;
							frame.at<Vec3b>(Point(i, j))[2] = 115;
							
						}
					}
				}
			}
		}
		output_cap.write(frame);
	}
	
	
	// free the capture objects from memory
	input_cap.release();
	output_cap.release();
	
	return 1;
	
}