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Processor.java
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Processor.java
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package csci576;
import java.awt.Color;
import java.awt.Point;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.Queue;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class Processor {
public static final int WIDTH = 480;
public static final int HEIGHT = 270;
public static int getRed(int color) {
int red = color & 0x00ff0000;
red >>= 16;
return red;
}
public static int getGreen(int color) {
int green = color & 0x0000ff00;
green >>= 8;
return green;
}
public static int getBlue(int color) {
int blue = color & 0x000000ff;
return blue;
}
/**
* Floods a pic with pink. Modifies the pic matrix
* @param pic The pic matrix of colors
* @param x X starting point
* @param y y starting point
* @param c The color key
*/
public static void iterativeFloodFill(int[][] pic, int x, int y, int c) {
Queue<Point> queue = new LinkedList<Point>();
queue.add(new Point(x, y));
while (!queue.isEmpty()) {
Point p = queue.poll();
int color = pic[p.x][p.y];
if (color == c) {
pic[p.x][p.y] = 0xffff00ff;
if (p.x != 0) {
queue.add(new Point(p.x-1, p.y));
}
if (p.y != 0) {
queue.add(new Point(p.x, p.y-1));
}
if (p.x != WIDTH-1) {
queue.add(new Point(p.x+1, p.y));
}
if (p.y != HEIGHT-1) {
queue.add(new Point(p.x, p.y+1));
}
}
}
}
/**
* Converts a rgb file into a 2D int array of colors.
* Assumes image to be of 480x720 because no real reason to assume otherwise
* @param filename The file to read
* @return A 2d array of pixels
* @throws IOException
*/
public static int[][] rgbToByteMatrix(String filename) throws IOException {
FileInputStream f = new FileInputStream(filename);
int img[][] = new int[WIDTH][HEIGHT];
byte bytes[] = new byte[WIDTH*HEIGHT*3];
int offset = 0, numRead = 0;
while (offset < bytes.length && (numRead = f.read(bytes, offset, bytes.length - offset)) >= 0) {
offset += numRead;
}
int ind = 0;
for (int y = 0; y < HEIGHT; ++y) {
for (int x = 0; x < WIDTH; ++x) {
int r = bytes[ind] & 0xff;
int g = bytes[ind+HEIGHT*WIDTH] & 0xff;
int b = bytes[ind+HEIGHT*WIDTH*2] & 0xff;
float hsv[] = new float[3];
Color.RGBtoHSB(r, g, b, hsv);
//High Brightness/Saturation
if (hsv[1] > 0.8 || hsv[2] > 0.8) {
float h = hsv[0] * 240;
//Green
if (h > 70 && h < 120) {
g = 255;
r = 0;
b = 70;
}
//Yellow
else if (h > 30 && h < 50) {
r = 255;
g = 255;
b = 0;
}
//Blue
else if (h >= 120 && h < 165 && hsv[1] > .7) {
r = 0;
g = 30;
b = 200;
}
//Red
else if ((h > 220 || h < 10) && hsv[1] > .7) {
r = 255;
g = 0;
b = 20;
}
//White
else if (hsv[1] < .1) {
r = 255;
g = 255;
b = 255;
}
//Everything Else
else {
r = 255;
g = 0;
b = 255;
}
}
//Not enough saturation/brightness
//So leave as white or as black
else if (g > 200 && b > 200 && r > 200) {
r = 255;
g = 255;
b = 255;
}
else {
g = 0;
b = 255;
r = 255;
}
img[x][y] = 0xff000000 | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff);
++ind;
}
}
f.close();
return img;
}
/**
* @param filename
* @return
* @throws IOException
*/
public static int[][] mcdToByteArray(String filename) throws IOException {
FileInputStream f = new FileInputStream(filename);
int img[][] = new int[WIDTH][HEIGHT];
byte bytes[] = new byte[WIDTH*HEIGHT*3];
int offset = 0, numRead = 0;
while (offset < bytes.length && (numRead = f.read(bytes, offset, bytes.length - offset)) >= 0) {
offset += numRead;
}
int ind = 0;
for (int y = 0; y < HEIGHT; ++y) {
for (int x = 0; x < WIDTH; ++x) {
int r = bytes[ind] & 0xff;
int g = bytes[ind+HEIGHT*WIDTH] & 0xff;
int b = bytes[ind+HEIGHT*WIDTH*2] & 0xff;
//Only want these yellows/oranges
if (!(r > 150 && g > 150 && b < 128)) {
r = 255;
g = 0;
b = 255;
}
else {
r = 255;
g = 255;
b = 0;
}
img[x][y] = 0xff000000 | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff);
++ind;
}
}
f.close();
return img;
}
/**
* Return an array of matrices of the logo images
* 0 is starbucks, 1 is subway, 2 is nfl, 3 is mcdonalds
* @return
* @throws IOException
*/
public static int[][][] readLogos() throws IOException{
int[][] stb = rgbToByteMatrix(AudioVideoProcessor.adLogos[0]);
int[][] sbw = rgbToByteMatrix(AudioVideoProcessor.adLogos[1]);
int[][] nfl = rgbToByteMatrix(AudioVideoProcessor.adLogos[2]);
int[][] mac = mcdToByteArray(AudioVideoProcessor.adLogos[3]);
//iterativeFloodFill(stb, 0, 0, stb[0][0]);
iterativeFloodFill(sbw, 0, 0, sbw[0][0]);
iterativeFloodFill(nfl, 0, 0, nfl[0][0]);
int[][][] logos = {stb, sbw, nfl, mac};
return logos;
}
/**
* Calcualte MSE between two frames. Ignores pink masked pixels in logo
* @param logo The logo to compare against
* @param frame The frame to compare against
* @return The MSE between the two
*/
public static double calcMSE(int[][] logo, int[][] frame) {
double sum = 0;
int h = Math.min(logo.length, frame.length);
int w = Math.min(logo[0].length, frame[0].length);
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
//Mask out the pink
if (logo[i][j] != 0xffff00ff) {
int rdif = getRed(logo[i][j]) - getRed(frame[i][j]);
int gdif = getGreen(logo[i][j]) - getGreen(frame[i][j]);
int bdif = getBlue(logo[i][j]) - getBlue(frame[i][j]);
sum += rdif*rdif + gdif*gdif + bdif*bdif;
}
}
}
return sum / (h*w);
}
public static double calcSubMSE(int[][] logo, int[][] frame, int scale, double offX, double offY) {
double sum = 0;
int h = logo.length / scale;
int w = logo[0].length / scale;
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j) {
if (logo[i*scale][j*scale] != 0xffff00ff) {
int rdif = getRed(logo[i*scale][j*scale]) - getRed(frame[(int)(i+offX*h)][(int)(j+offY*w)]);
int gdif = getGreen(logo[i*scale][j*scale]) - getGreen(frame[(int)(i+offX*h)][(int)(j+offY*w)]);
int bdif = getBlue(logo[i*scale][j*scale]) - getBlue(frame[(int)(i+offX*h)][(int)(j+offY*w)]);
sum += rdif*rdif + gdif*gdif + bdif*bdif;
}
}
}
return sum / (h*w);
}
public static void analyzeVideo(String videopath, int[][][] logos, AudioVideoProcessor.Shot[] shots) throws IOException {
//Turn file into path
File f = new File(videopath);
InputStream videoStream = new FileInputStream(f);
//Some initial data for the for loop
int numRead = 0;
int curFrame = 1;
//I just don't want to allocate more space each time
byte bytes[] = new byte[3*WIDTH*HEIGHT];
int[][] frame = new int[WIDTH][HEIGHT];
int curShot = -1;
//Count frames each time and go until end of file (numRead == -1)
//Note: I start on frame 1, not frame 0
for (curFrame = 1; numRead != -1; ++curFrame) {
//Ensure we read to the full buffer
int offset = 0;
while (offset < bytes.length && (numRead=videoStream.read(bytes, offset, bytes.length-offset)) >= 0) {
offset += numRead;
}
//curShot starts at -1 to ensure this block gets called whenever a scene starts
if (curShot == -1 || shots[curShot].end < curFrame) {
++curShot;
//If we somehow go past the end
if (curShot == shots.length) {
break;
}
}
//For checking Subway
int countSubY[] = new int[5], countSubW[] = new int[5];
//For checking Starbucks
int countStarG[] = new int[5], countStarW[] = new int[5];
//For checking NFL
int countNFLB[] = new int[5], countNFLR[] = new int[5], countNFLW[] = new int[5];
//For checking McDonalds
double countMcdY[] = new double[5];
int countMcdR[] = new int[5];
int ind = 0;
for(int y = 0; y < HEIGHT; y++){
for(int x = 0; x < WIDTH; x++){
//Read RGB from buffer for frame
int r = bytes[ind] & 0xff;
int g = bytes[ind+HEIGHT*WIDTH] & 0xff;
int b = bytes[ind+HEIGHT*WIDTH*2] & 0xff;
//Only look at center half
if (x < WIDTH / 4 || x > 3 * WIDTH / 4) {
g = 0;
b = 0;
r = 0;
}
float hsv[] = new float[3];
Color.RGBtoHSB(r, g, b, hsv);
//High Brightness/Saturation
if (hsv[1] > 0.8 || hsv[2] > 0.8) {
float h = hsv[0] * 240;
//Green
if (h > 70 && h < 120 && hsv[1] > .7) {
g = 255;
r = 0;
b = 70;
++countStarG[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countStarG[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countStarG[3];
}
}
//Yellow
else if (h > 30 && h < 50) {
r = 255;
g = 255;
b = 0;
if (x > WIDTH / 2) {
++countSubY[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countSubY[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countSubY[3];
}
}
if (x > WIDTH / 3 && x < 2 * WIDTH / 3) {
++countMcdY[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countMcdY[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countMcdY[3];
}
}
}
//Orange because McDonalds includes that sometimes too
else if (h > 20 && h < 30) {
if (x > WIDTH / 3 && x < 2 * WIDTH / 3) {
countMcdY[2*(3*y / HEIGHT)] += 1;
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
countMcdY[1] += 1;
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
countMcdY[3] += 1;
}
}
}
//Blue
else if (h >= 120 && h < 165 && hsv[1] > .7) {
r = 0;
g = 30;
b = 200;
++countNFLB[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countNFLB[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countNFLB[3];
}
}
//Red
else if ((h > 220 || h < 10) && hsv[1] > .7) {
r = 255;
g = 0;
b = 20;
if (x > 2 * WIDTH / 5 && x < 3 * WIDTH / 5) {
++countNFLR[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countNFLR[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countNFLR[3];
}
}
if (x > WIDTH / 3 && x < 2 * WIDTH / 3) {
++countMcdR[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countMcdR[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countMcdR[3];
}
}
}
//White
else if (hsv[1] < .1) {
r = 255;
g = 255;
b = 255;
if (x < WIDTH / 2) {
++countSubW[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countSubW[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countSubY[3];
}
}
if (x > 2 * WIDTH / 5 && x < 3 * WIDTH / 5) {
++countStarW[2*(3*y / HEIGHT)];
++countNFLW[2*(3*y / HEIGHT)];
if (y > HEIGHT / 6 && y < HEIGHT / 2) {
++countStarW[1];
++countNFLW[1];
}
if (y > HEIGHT / 2 && y < 5 * HEIGHT / 6) {
++countStarW[3];
++countNFLW[3];
}
}
}
//Everything Else
else {
r = 0;
g = 0;
b = 0;
}
}
//Not enough saturation/brightness
//So leave as white or as black
else if (g > 200 && b > 200 && r > 200) {
r = 255;
g = 255;
b = 255;
}
else {
g = 0;
b = 0;
r = 0;
}
frame[x][y] = 0xff000000 | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff);
ind++;
}
}
/*if (curFrame >= 5551 && curFrame <= 6000 || curFrame >= 2401 && curFrame <= 2850) {
continue;
}*/
for (int i = 0; i < countStarG.length; ++i) {
if (countStarG[i] > 2000 && countStarW[i] > 800 && countStarW[i] < 4000) {
++shots[curShot].logos[AudioVideoProcessor.Logo.STARBUCKS.key];
//Simple break;
i = countStarG.length;
//System.out.println(curFrame + ": Starbucks " + i);
/*if (curFrame > 000 && !open) {
testImage(frame);
open = true;
}*/
}
}
for (int i = 0; i < countSubY.length; ++i) {
if (countSubY[i] >= 2200 && countSubW[i] >= 2500 && countSubW[i] < 4500) {
double mse = calcSubMSE(logos[1], frame, 2, 0.5, i/4.0);
if (mse < 20000) {
//System.out.println(curFrame + ": Subway " + i);
++shots[curShot].logos[AudioVideoProcessor.Logo.SUBWAY.key];
//Simple break;
i = countSubY.length;
}
}
}
for (int i = 0; i < countNFLB.length; ++i) {
if (countNFLB[i] > 3000 && countNFLR[i] > 1000 && countNFLW[i] > 1000) {
//System.out.println(curFrame + ": NFL " + i);
++shots[curShot].logos[AudioVideoProcessor.Logo.NFL.key];
//Simple break;
i = countNFLB.length;
}
}
for (int i = 0; i < countMcdY.length; ++i) {
if (countMcdY[i] > 1500 && countMcdR[i] > 1000) {
//System.out.println(curFrame + ": McDonalds " + i);
++shots[curShot].logos[AudioVideoProcessor.Logo.MCDONALDS.key];
//Simple break;
i = countMcdY.length;
}
}
}
//out.close();
//Close the input stream like a responsible adult
videoStream.close();
}
static boolean open = false;
public static void testImage(int[][] image) {
BufferedImage img = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
for (int i = 0; i < WIDTH; ++i) {
for (int j = 0; j < HEIGHT; ++j) {
img.setRGB(i, j, image[i][j]);
}
}
JLabel j = new JLabel(new ImageIcon(img));
JFrame f = new JFrame("aaa");
f.add(j);
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.pack();
}
}