Reproducing 2 Coins [671]

!7

static int imageWidth = 200;

static RGBImage originalImage;
static ImageSurface imageSurface;
static JLabel isTitle;

!include #1000522 // helper functions for image reproduction

static abstract class Base {
  abstract Base copy();
  abstract void vary();
}

static abstract class Overlay extends Base {
  abstract Overlay copy();
  abstract void renderOn(RGBImage image);
}

static abstract class Params extends Base {
  RGBImage originalImage;
  abstract Params copy();
  abstract RGBImage render();

  void baseClone(Params p) {
    p.originalImage = originalImage;
  }
  
  RGBImage rendered;
  RGBImage getImage() {
    if (rendered == null)
      rendered = render();
    return rendered;
  }
  
  double score = 2.0;
  double getScore() {
    if (score == 2.0)
      score = calcScore();
    return score;
  }
  
  // when object has changed
  double getFreshScore() {
    resetScore();
    return getScore();
  }
  
  void resetScore() {
    score = 2.0;
    rendered = null;
  }
  
  double calcScore() {
    return diff(originalImage, getImage());
  }
  
  boolean isBetterThan(Params p) {
    return getScore() < p.getScore();
  }
}

static class Coin extends Overlay {
  double cx, cy, radius;
  RGB color;

  Coin copy() {
    Coin p = new Coin();
    p.cx = cx;
    p.cy = cy;
    p.radius = radius;
    p.color = color;
    return p;
  }
  
  public String toString() {
    return "Coin " + cx + " " + cy + " " + radius + " " + color;
  }

  void renderOn(RGBImage image) {
    coin(image, this);
  }
  
  void vary() {
    int s = random(4);
    if (s == 0)
      cx = vary01(cx);
    else if (s == 1)
      cy = vary01(cy);
    else if (s == 2)
      radius = vary01(radius);
    else
      color = varyColor(color);
  }
}

static class Solid extends Overlay {
  RGB col;
  
  Solid copy() {
    Solid p = new Solid();
    p.col = col;
    return p;
  }
  
  public String toString() {
    return "Solid " + col;
  }

  void renderOn(RGBImage image) {
    int w = image.getWidth(), h = image.getHeight();
    for (int y = 0; y < h; y++)
      for (int x = 0; x < w; x++)
        image.setPixel(x, y, col);
  }
  
  void vary() {
    col = varyColor(col);
  }
}

interface Reproducer {
  public Params reproduce(RGBImage original);
}

interface OverlayReproducer {
  public Overlay reproduce(RGBImage original);
}

static class RandomCoin implements OverlayReproducer {
  int n = -1;
  public Overlay reproduce(RGBImage original) {
    ++n;
    Coin p = new Coin();
    p.cx = random();
    p.cy = random();
    p.radius = random()*0.2;
    if (n % 2 == 0)
      p.color = randomColor();
    else
      p.color = probeRandomPixel(original);
    return p;
  }
}

static class RandomSolid implements OverlayReproducer {
  int n = -1;
  public Overlay reproduce(RGBImage original) {
    ++n;
    Solid p = new Solid();
    if (n % 2 == 0) {
      p.col = randomColor();
    } else {
      p.col = probeRandomPixel(original);
    }
    return p;
  }
}

static class WhiteSolid implements OverlayReproducer {
  public Overlay reproduce(RGBImage original) {
    Solid p = new Solid();
    p.col = new RGB(Color.white);
    return p;
  }
}

static class VaryBest implements Reproducer {
  Reproducer base;
  Params best;
  
  VaryBest(Reproducer base) {
    this.base = base;
  }
  
  public Params reproduce(RGBImage original) {
    Params p = base.reproduce(original);
    if (best == null || p.isBetterThan(best))
      best = p;
    Params variation = best.copy();
    variation.vary();
    //System.out.println("Best: " + best.getScore() + ", variation: " + variation.getScore());
    if (variation.isBetterThan(best)) {
      //System.out.println("Using variation, diff=" + (best.getScore()-variation.getScore()));
      best = variation;
    }
    return best;
  }
  
  void reset() {
    best = null;
  }
}

static class Layered extends Params {
  Layers myMaker;
  Overlay[] list;
  
  Layered(Layers myMaker, Overlay[] list) {
    this.myMaker = myMaker;
    this.list = list;
  }
  
  Layered copy() {
    Layered p = new Layered(myMaker, new Overlay[list.length]);
    baseClone(p);
    for (int i = 0; i < list.length; i++)
      p.list[i] = list[i].copy();
    return p;
  }
  
  public String toString() {
    StringBuilder buf = new StringBuilder("layered{");
    for (int i = 0; i < list.length; i++) {
      if (i != 0)
        buf.append(", ");
      buf.append(list[i]);
    }
    return buf + "}";
  }

  RGBImage render() {
    RGBImage image = new RGBImage(originalImage.getWidth(), originalImage.getHeight(), Color.white);
    for (int i = 0; i < list.length; i++)
      list[i].renderOn(image);
    return image;
  }
  
  void vary() {
    int i = random(list.length);
    if (random(2) == 0) {
      //System.out.println("Varying layer " + i);
      list[i].vary();
    } else {
      //double score = getScore();
      OverlayReproducer maker = myMaker.list[i];
      list[i] = maker.reproduce(originalImage);
      //System.out.println("Exchanging layer " + i + " from " + maker + ", improvement: " + (score-getFreshScore()));
    }
    resetScore();
  }
}

static class Layers implements Reproducer {
  OverlayReproducer[] list;
  long ntry = -1;
  int stepTime = 0/*500*/;
  VaryBest varyBest = new VaryBest(this);
  
  Layers(OverlayReproducer... list) {
    this.list = list;
  }
  
  public Params reproduce(RGBImage original) {
    ++ntry;
    int n = this.list.length;
    if (stepTime != 0) {
      // build up image gradually to optimize lower layers first
      n = (int) Math.min(n, ntry/stepTime+1);
      varyBest.reset();
    }
    Overlay[] list = new Overlay[n];
    for (int i = 0; i < n; i++)
      list[i] = this.list[i].reproduce(original);
    Layered result = new Layered(this, list);
    result.originalImage = original;
    return result;
  }
}

// main reproduce function
static Reproducer reproducer =
  /*new VaryBest*/(new Layers(
    /*new RandomSolid()*/new WhiteSolid(),
    new RandomCoin(),
    new RandomCoin()
  )).varyBest;

static Params reproduce(RGBImage original) {
  int w = original.getWidth(), h = original.getHeight();
  return reproducer.reproduce(original);
}

p-substance-thread {
  String imageID = "#1000332"; // Picture of two coins
  if (args.length != 0) imageID = args[0];
  final String _imageID = imageID;
  originalImage = loadImage(_imageID);
  originalImage = resizeToWidth(originalImage, imageWidth);
  
  swing {
    imageSurface = new ImageSurface;
    isTitle = jCenteredLabel("Reproduction");
      
    showPackedFrame(vgrid(
      withCenteredTitle("Original Image", new ImageSurface(originalImage)),
      withTitle(isTitle, imageSurface)));
  }
  
  reproduceOpenEnd(originalImage, imageSurface);
}

static void reproduceOpenEnd(RGBImage original, ImageSurface imageSurface) {
  Params best = null;
  long lastPrint = 0, lastN = 0;
  for (long ntry = 1; ; ntry++) {
    long now = System.currentTimeMillis();
    if (now >= lastPrint+1000) {
      long tps = (ntry-lastN)*1000/(now-lastPrint);
      lastPrint = now;
      lastN = ntry;
      String s = "Try " + ntry + " (" + tps + "/s)";
      if (best == null)
        System.out.println(s);
      else {
        System.out.println("Best: " + best);
        System.out.println(s + ", score: " + formatDouble(best.getScore()*100, 2) + "%, structure size: " + structureSize(best, Params.class));
      }
    }
    Params p = reproduce(original);
    if (best == null || p != null && p.getScore() < best.getScore()) {
      //System.out.println("New best! " + p.getScore());
      best = p;
      imageSurface.setImage(p.getImage());
      setText(isTitle, print("Reproduction (" + formatDouble(100*(1-p.getScore()), 1) + "%)"));
    }
    
    if (p != null && p.getScore() == 0.0)
      break;
  }
}

static void coin(RGBImage img, Coin p) {
  int w = img.getWidth(), h = img.getHeight();
  double ratio = ((double) w)/h;
  for (int yy = 0; yy < h; yy++) {
    double y = ((double) yy)/(h-1);
    double ybla = Math.abs(y-p.cy)/p.radius;
    if (ybla <= 1) {
      double xbla = Math.sqrt(1-ybla*ybla)/ratio;
      double l = p.cx-xbla*p.radius, r = p.cx+xbla*p.radius;
      int ll = (int) (l*w), rr = (int) (r*w);
      ll = Math.max(0, ll);
      rr = Math.min(w-1, rr);
      for (int xx = ll; xx <= rr; xx++)
        img.setPixel(xx, yy, p.color);
    }
  }
}

Travelled to 16 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, onxytkatvevr, pyentgdyhuwx, pzhvpgtvlbxg, qbtsjoyahagl, teubizvjbppd, tslmcundralx, tvejysmllsmz, vouqrxazstgt

Snippet ID:	#671
Snippet name:	Reproducing 2 Coins
Eternal ID of this version:	#671/17
Text MD5:	7875379eb79815532f7e6b97b5b0c9c2
Transpilation MD5:	c4cea5ac04af475a769dca57de6422c2
Author:	stefan
Category:
Type:	JavaX source code
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2017-02-19 13:40:24
Source code size:	8677 bytes / 350 lines
Pitched / IR pitched:	No / No
Views / Downloads:	698 / 695
Version history:	16 change(s)
Referenced in:	[show references]

< > BotCompany Repo | #671 // Reproducing 2 Coins

JavaX source code [tags: use-pretranspiled] - run with: x30.jar

Author comment

1	!7
2
3	static int imageWidth = 200;
4
5	static RGBImage originalImage;
6	static ImageSurface imageSurface;
7	static JLabel isTitle;
8
9	!include #1000522 // helper functions for image reproduction
10
11	static abstract class Base {
12	abstract Base copy();
13	abstract void vary();
14	}
15
16	static abstract class Overlay extends Base {
17	abstract Overlay copy();
18	abstract void renderOn(RGBImage image);
19	}
20
21	static abstract class Params extends Base {
22	RGBImage originalImage;
23	abstract Params copy();
24	abstract RGBImage render();
25
26	void baseClone(Params p) {
27	p.originalImage = originalImage;
28	}
29
30	RGBImage rendered;
31	RGBImage getImage() {
32	if (rendered == null)
33	rendered = render();
34	return rendered;
35	}
36
37	double score = 2.0;
38	double getScore() {
39	if (score == 2.0)
40	score = calcScore();
41	return score;
42	}
43
44	// when object has changed
45	double getFreshScore() {
46	resetScore();
47	return getScore();
48	}
49
50	void resetScore() {
51	score = 2.0;
52	rendered = null;
53	}
54
55	double calcScore() {
56	return diff(originalImage, getImage());
57	}
58
59	boolean isBetterThan(Params p) {
60	return getScore() < p.getScore();
61	}
62	}
63
64	static class Coin extends Overlay {
65	double cx, cy, radius;
66	RGB color;
67
68	Coin copy() {
69	Coin p = new Coin();
70	p.cx = cx;
71	p.cy = cy;
72	p.radius = radius;
73	p.color = color;
74	return p;
75	}
76
77	public String toString() {
78	return "Coin " + cx + " " + cy + " " + radius + " " + color;
79	}
80
81	void renderOn(RGBImage image) {
82	coin(image, this);
83	}
84
85	void vary() {
86	int s = random(4);
87	if (s == 0)
88	cx = vary01(cx);
89	else if (s == 1)
90	cy = vary01(cy);
91	else if (s == 2)
92	radius = vary01(radius);
93	else
94	color = varyColor(color);
95	}
96	}
97
98	static class Solid extends Overlay {
99	RGB col;
100
101	Solid copy() {
102	Solid p = new Solid();
103	p.col = col;
104	return p;
105	}
106
107	public String toString() {
108	return "Solid " + col;
109	}
110
111	void renderOn(RGBImage image) {
112	int w = image.getWidth(), h = image.getHeight();
113	for (int y = 0; y < h; y++)
114	for (int x = 0; x < w; x++)
115	image.setPixel(x, y, col);
116	}
117
118	void vary() {
119	col = varyColor(col);
120	}
121	}
122
123	interface Reproducer {
124	public Params reproduce(RGBImage original);
125	}
126
127	interface OverlayReproducer {
128	public Overlay reproduce(RGBImage original);
129	}
130
131	static class RandomCoin implements OverlayReproducer {
132	int n = -1;
133	public Overlay reproduce(RGBImage original) {
134	++n;
135	Coin p = new Coin();
136	p.cx = random();
137	p.cy = random();
138	p.radius = random()*0.2;
139	if (n % 2 == 0)
140	p.color = randomColor();
141	else
142	p.color = probeRandomPixel(original);
143	return p;
144	}
145	}
146
147	static class RandomSolid implements OverlayReproducer {
148	int n = -1;
149	public Overlay reproduce(RGBImage original) {
150	++n;
151	Solid p = new Solid();
152	if (n % 2 == 0) {
153	p.col = randomColor();
154	} else {
155	p.col = probeRandomPixel(original);
156	}
157	return p;
158	}
159	}
160
161	static class WhiteSolid implements OverlayReproducer {
162	public Overlay reproduce(RGBImage original) {
163	Solid p = new Solid();
164	p.col = new RGB(Color.white);
165	return p;
166	}
167	}
168
169	static class VaryBest implements Reproducer {
170	Reproducer base;
171	Params best;
172
173	VaryBest(Reproducer base) {
174	this.base = base;
175	}
176
177	public Params reproduce(RGBImage original) {
178	Params p = base.reproduce(original);
179	if (best == null \|\| p.isBetterThan(best))
180	best = p;
181	Params variation = best.copy();
182	variation.vary();
183	//System.out.println("Best: " + best.getScore() + ", variation: " + variation.getScore());
184	if (variation.isBetterThan(best)) {
185	//System.out.println("Using variation, diff=" + (best.getScore()-variation.getScore()));
186	best = variation;
187	}
188	return best;
189	}
190
191	void reset() {
192	best = null;
193	}
194	}
195
196	static class Layered extends Params {
197	Layers myMaker;
198	Overlay[] list;
199
200	Layered(Layers myMaker, Overlay[] list) {
201	this.myMaker = myMaker;
202	this.list = list;
203	}
204
205	Layered copy() {
206	Layered p = new Layered(myMaker, new Overlay[list.length]);
207	baseClone(p);
208	for (int i = 0; i < list.length; i++)
209	p.list[i] = list[i].copy();
210	return p;
211	}
212
213	public String toString() {
214	StringBuilder buf = new StringBuilder("layered{");
215	for (int i = 0; i < list.length; i++) {
216	if (i != 0)
217	buf.append(", ");
218	buf.append(list[i]);
219	}
220	return buf + "}";
221	}
222
223	RGBImage render() {
224	RGBImage image = new RGBImage(originalImage.getWidth(), originalImage.getHeight(), Color.white);
225	for (int i = 0; i < list.length; i++)
226	list[i].renderOn(image);
227	return image;
228	}
229
230	void vary() {
231	int i = random(list.length);
232	if (random(2) == 0) {
233	//System.out.println("Varying layer " + i);
234	list[i].vary();
235	} else {
236	//double score = getScore();
237	OverlayReproducer maker = myMaker.list[i];
238	list[i] = maker.reproduce(originalImage);
239	//System.out.println("Exchanging layer " + i + " from " + maker + ", improvement: " + (score-getFreshScore()));
240	}
241	resetScore();
242	}
243	}
244
245	static class Layers implements Reproducer {
246	OverlayReproducer[] list;
247	long ntry = -1;
248	int stepTime = 0/500/;
249	VaryBest varyBest = new VaryBest(this);
250
251	Layers(OverlayReproducer... list) {
252	this.list = list;
253	}
254
255	public Params reproduce(RGBImage original) {
256	++ntry;
257	int n = this.list.length;
258	if (stepTime != 0) {
259	// build up image gradually to optimize lower layers first
260	n = (int) Math.min(n, ntry/stepTime+1);
261	varyBest.reset();
262	}
263	Overlay[] list = new Overlay[n];
264	for (int i = 0; i < n; i++)
265	list[i] = this.list[i].reproduce(original);
266	Layered result = new Layered(this, list);
267	result.originalImage = original;
268	return result;
269	}
270	}
271
272	// main reproduce function
273	static Reproducer reproducer =
274	/new VaryBest/(new Layers(
275	/new RandomSolid()/new WhiteSolid(),
276	new RandomCoin(),
277	new RandomCoin()
278	)).varyBest;
279
280	static Params reproduce(RGBImage original) {
281	int w = original.getWidth(), h = original.getHeight();
282	return reproducer.reproduce(original);
283	}
284
285	p-substance-thread {
286	String imageID = "#1000332"; // Picture of two coins
287	if (args.length != 0) imageID = args[0];
288	final String _imageID = imageID;
289	originalImage = loadImage(_imageID);
290	originalImage = resizeToWidth(originalImage, imageWidth);
291
292	swing {
293	imageSurface = new ImageSurface;
294	isTitle = jCenteredLabel("Reproduction");
295
296	showPackedFrame(vgrid(
297	withCenteredTitle("Original Image", new ImageSurface(originalImage)),
298	withTitle(isTitle, imageSurface)));
299	}
300
301	reproduceOpenEnd(originalImage, imageSurface);
302	}
303
304	static void reproduceOpenEnd(RGBImage original, ImageSurface imageSurface) {
305	Params best = null;
306	long lastPrint = 0, lastN = 0;
307	for (long ntry = 1; ; ntry++) {
308	long now = System.currentTimeMillis();
309	if (now >= lastPrint+1000) {
310	long tps = (ntry-lastN)*1000/(now-lastPrint);
311	lastPrint = now;
312	lastN = ntry;
313	String s = "Try " + ntry + " (" + tps + "/s)";
314	if (best == null)
315	System.out.println(s);
316	else {
317	System.out.println("Best: " + best);
318	System.out.println(s + ", score: " + formatDouble(best.getScore()*100, 2) + "%, structure size: " + structureSize(best, Params.class));
319	}
320	}
321	Params p = reproduce(original);
322	if (best == null \|\| p != null && p.getScore() < best.getScore()) {
323	//System.out.println("New best! " + p.getScore());
324	best = p;
325	imageSurface.setImage(p.getImage());
326	setText(isTitle, print("Reproduction (" + formatDouble(100*(1-p.getScore()), 1) + "%)"));
327	}
328
329	if (p != null && p.getScore() == 0.0)
330	break;
331	}
332	}
333
334	static void coin(RGBImage img, Coin p) {
335	int w = img.getWidth(), h = img.getHeight();
336	double ratio = ((double) w)/h;
337	for (int yy = 0; yy < h; yy++) {
338	double y = ((double) yy)/(h-1);
339	double ybla = Math.abs(y-p.cy)/p.radius;
340	if (ybla <= 1) {
341	double xbla = Math.sqrt(1-ybla*ybla)/ratio;
342	double l = p.cx-xblap.radius, r = p.cx+xblap.radius;
343	int ll = (int) (lw), rr = (int) (rw);
344	ll = Math.max(0, ll);
345	rr = Math.min(w-1, rr);
346	for (int xx = ll; xx <= rr; xx++)
347	img.setPixel(xx, yy, p.color);
348	}
349	}
350	}