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43 #include "test_precomp.hpp"
45 namespace opencv_test { namespace {
47 //#define DRAW_TEST_IMAGE
49 class CV_DrawingTest : public cvtest::BaseTest
55 virtual void draw( Mat& img ) = 0;
56 virtual int checkLineIterator( Mat& img) = 0;
57 virtual int checkLineVirtualIterator() = 0;
60 void CV_DrawingTest::run( int )
63 const string fname = "../highgui/drawing/image.png";
64 string path = ts->get_data_path(), filename;
65 filename = path + fname;
69 valImg = imread( filename );
72 //imwrite( filename, testImg );
73 ts->printf( ts->LOG, "test image can not be read");
75 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
77 ts->printf( ts->LOG, "PNG image support is not available");
78 ts->set_failed_test_info(cvtest::TS::OK);
84 // image should match exactly
85 float err = (float)cvtest::norm( testImg, valImg, NORM_L1 );
89 ts->printf( ts->LOG, "NORM_L1 between testImg and valImg is equal %f (larger than %f)\n", err, Eps );
90 ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
94 ts->set_failed_test_info(checkLineIterator( testImg ));
97 ts->set_failed_test_info(checkLineVirtualIterator());
98 ts->set_failed_test_info(cvtest::TS::OK);
101 class CV_DrawingTest_CPP : public CV_DrawingTest
104 CV_DrawingTest_CPP() {}
106 virtual void draw( Mat& img );
107 virtual int checkLineIterator( Mat& img);
108 virtual int checkLineVirtualIterator();
111 void CV_DrawingTest_CPP::draw( Mat& img )
113 Size imgSize( 600, 400 );
114 img.create( imgSize, CV_8UC3 );
116 vector<Point> polyline(4);
117 polyline[0] = Point(0, 0);
118 polyline[1] = Point(imgSize.width, 0);
119 polyline[2] = Point(imgSize.width, imgSize.height);
120 polyline[3] = Point(0, imgSize.height);
121 const Point* pts = &polyline[0];
122 int n = (int)polyline.size();
123 fillPoly( img, &pts, &n, 1, Scalar::all(255) );
125 Point p1(1,1), p2(3,3);
126 if( clipLine(Rect(0,0,imgSize.width,imgSize.height), p1, p2) && clipLine(imgSize, p1, p2) )
127 circle( img, Point(300,100), 40, Scalar(0,0,255), 3 ); // draw
129 p2 = Point(3,imgSize.height+1000);
130 if( clipLine(Rect(0,0,imgSize.width,imgSize.height), p1, p2) && clipLine(imgSize, p1, p2) )
131 circle( img, Point(500,300), 50, cvColorToScalar(255,CV_8UC3), 5, 8, 1 ); // draw
133 p1 = Point(imgSize.width,1), p2 = Point(imgSize.width,3);
134 if( clipLine(Rect(0,0,imgSize.width,imgSize.height), p1, p2) && clipLine(imgSize, p1, p2) )
135 circle( img, Point(390,100), 10, Scalar(0,0,255), 3 ); // not draw
137 p1 = Point(imgSize.width-1,1), p2 = Point(imgSize.width,3);
138 if( clipLine(Rect(0,0,imgSize.width,imgSize.height), p1, p2) && clipLine(imgSize, p1, p2) )
139 ellipse( img, Point(390,100), Size(20,30), 60, 0, 220.0, Scalar(0,200,0), 4 ); //draw
141 ellipse( img, RotatedRect(Point(100,200),Size(200,100),160), Scalar(200,200,255), 5 );
144 ellipse2Poly( Point(430,180), Size(100,150), 30, 0, 150, 20, polyline );
146 n = (int)polyline.size();
147 polylines( img, &pts, &n, 1, false, Scalar(0,0,150), 4, CV_AA );
149 for( vector<Point>::const_iterator it = polyline.begin(); n < (int)polyline.size()-1; ++it, n++ )
151 line( img, *it, *(it+1), Scalar(50,250,100));
155 ellipse2Poly( Point(500,300), Size(50,80), 0, 0, 180, 10, polyline );
157 n = (int)polyline.size();
158 polylines( img, &pts, &n, 1, true, Scalar(100,200,100), 20 );
159 fillConvexPoly( img, pts, n, Scalar(0, 80, 0) );
162 // external rectengular
163 polyline[0] = Point(0, 0);
164 polyline[1] = Point(80, 0);
165 polyline[2] = Point(80, 80);
166 polyline[3] = Point(0, 80);
167 // internal rectangular
168 polyline[4] = Point(20, 20);
169 polyline[5] = Point(60, 20);
170 polyline[6] = Point(60, 60);
171 polyline[7] = Point(20, 60);
172 const Point* ppts[] = {&polyline[0], &polyline[0]+4};
174 fillPoly( img, ppts, pn, 2, Scalar(100, 100, 0), 8, 0, Point(500, 20) );
176 rectangle( img, Point(0, 300), Point(50, 398), Scalar(0,0,255) );
178 string text1 = "OpenCV";
179 int baseline = 0, thickness = 3, fontFace = FONT_HERSHEY_SCRIPT_SIMPLEX;
181 Size textSize = getTextSize( text1, fontFace, fontScale, thickness, &baseline);
182 baseline += thickness;
183 Point textOrg((img.cols - textSize.width)/2, (img.rows + textSize.height)/2);
184 rectangle(img, textOrg + Point(0, baseline), textOrg + Point(textSize.width, -textSize.height), Scalar(0,0,255));
185 line(img, textOrg + Point(0, thickness), textOrg + Point(textSize.width, thickness), Scalar(0, 0, 255));
186 putText(img, text1, textOrg, fontFace, fontScale, Scalar(150,0,150), thickness, 8);
188 string text2 = "abcdefghijklmnopqrstuvwxyz1234567890";
189 Scalar color(200,0,0);
190 fontScale = 0.5, thickness = 1;
193 textSize = getTextSize( text2, FONT_HERSHEY_SIMPLEX, fontScale, thickness, &baseline);
194 textOrg = Point(5,5)+Point(0,textSize.height+dist);
195 putText(img, text2, textOrg, FONT_HERSHEY_SIMPLEX, fontScale, color, thickness, CV_AA);
198 textSize = getTextSize( text2, FONT_HERSHEY_PLAIN, fontScale, thickness, &baseline);
199 textOrg += Point(0,textSize.height+dist);
200 putText(img, text2, textOrg, FONT_HERSHEY_PLAIN, fontScale, color, thickness, CV_AA);
203 textSize = getTextSize( text2, FONT_HERSHEY_DUPLEX, fontScale, thickness, &baseline);
204 textOrg += Point(0,textSize.height+dist);
205 putText(img, text2, textOrg, FONT_HERSHEY_DUPLEX, fontScale, color, thickness, CV_AA);
207 textSize = getTextSize( text2, FONT_HERSHEY_COMPLEX, fontScale, thickness, &baseline);
208 textOrg += Point(0,textSize.height+dist);
209 putText(img, text2, textOrg, FONT_HERSHEY_COMPLEX, fontScale, color, thickness, CV_AA);
211 textSize = getTextSize( text2, FONT_HERSHEY_TRIPLEX, fontScale, thickness, &baseline);
212 textOrg += Point(0,textSize.height+dist);
213 putText(img, text2, textOrg, FONT_HERSHEY_TRIPLEX, fontScale, color, thickness, CV_AA);
216 textSize = getTextSize( text2, FONT_HERSHEY_COMPLEX_SMALL, fontScale, thickness, &baseline);
217 textOrg += Point(0,180) + Point(0,textSize.height+dist);
218 putText(img, text2, textOrg, FONT_HERSHEY_COMPLEX_SMALL, fontScale, color, thickness, CV_AA);
220 textSize = getTextSize( text2, FONT_HERSHEY_SCRIPT_SIMPLEX, fontScale, thickness, &baseline);
221 textOrg += Point(0,textSize.height+dist);
222 putText(img, text2, textOrg, FONT_HERSHEY_SCRIPT_SIMPLEX, fontScale, color, thickness, CV_AA);
224 textSize = getTextSize( text2, FONT_HERSHEY_SCRIPT_COMPLEX, fontScale, thickness, &baseline);
225 textOrg += Point(0,textSize.height+dist);
226 putText(img, text2, textOrg, FONT_HERSHEY_SCRIPT_COMPLEX, fontScale, color, thickness, CV_AA);
228 dist = 15, fontScale = 0.5;
229 textSize = getTextSize( text2, FONT_ITALIC, fontScale, thickness, &baseline);
230 textOrg += Point(0,textSize.height+dist);
231 putText(img, text2, textOrg, FONT_ITALIC, fontScale, color, thickness, CV_AA);
234 int CV_DrawingTest_CPP::checkLineIterator( Mat& img )
236 LineIterator it( img, Point(0,300), Point(1000, 300) );
237 for(int i = 0; i < it.count; ++it, i++ )
239 Vec3b v = (Vec3b)(*(*it)) - img.at<Vec3b>(300,i);
240 float err = (float)cvtest::norm( v, NORM_L2 );
243 ts->printf( ts->LOG, "LineIterator works incorrect" );
244 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
247 ts->set_failed_test_info(cvtest::TS::OK);
251 int CV_DrawingTest_CPP::checkLineVirtualIterator( )
253 RNG randomGenerator(1);
254 for (size_t test = 0; test < 10000; ++test)
256 int width = randomGenerator.uniform(0, 512+1);
257 int height = randomGenerator.uniform(0, 512+1);
258 int x1 = randomGenerator.uniform(-512, 1024+1);
259 int y1 = randomGenerator.uniform(-512, 1024+1);
260 int x2 = randomGenerator.uniform(-512, 1024+1);
261 int y2 = randomGenerator.uniform(-512, 1024+1);
262 int x3 = randomGenerator.uniform(-512, 1024+1);
263 int y3 = randomGenerator.uniform(-512, 1024+1);
264 int channels = randomGenerator.uniform(1, 3+1);
265 Mat m(cv::Size(width, height), CV_MAKETYPE(8U, channels));
268 Point offset(x3, y3);
269 LineIterator it( m, p1, p2 );
270 LineIterator vit(Rect(offset.x, offset.y, width, height), p1 + offset, p2 + offset);
271 if (it.count != vit.count)
273 ts->printf( ts->LOG, "virtual LineIterator works incorrectly" );
274 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
279 for(int i = 0; i < it.count; ++it, ++vit, i++ )
281 Point pIt = it.pos();
282 Point pVit = vit.pos() - offset;
285 ts->printf( ts->LOG, "virtual LineIterator works incorrectly" );
286 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
292 ts->set_failed_test_info(cvtest::TS::OK);
296 class CV_DrawingTest_Far : public CV_DrawingTest_CPP
299 CV_DrawingTest_Far() {}
301 virtual void draw(Mat& img);
304 void CV_DrawingTest_Far::draw(Mat& img)
306 Size imgSize(32768 + 600, 400);
307 img.create(imgSize, CV_8UC3);
309 vector<Point> polyline(4);
310 polyline[0] = Point(32768 + 0, 0);
311 polyline[1] = Point(imgSize.width, 0);
312 polyline[2] = Point(imgSize.width, imgSize.height);
313 polyline[3] = Point(32768 + 0, imgSize.height);
314 const Point* pts = &polyline[0];
315 int n = (int)polyline.size();
316 fillPoly(img, &pts, &n, 1, Scalar::all(255));
318 Point p1(32768 + 1, 1), p2(32768 + 3, 3);
319 if (clipLine(Rect(32768 + 0, 0, imgSize.width, imgSize.height), p1, p2) && clipLine(imgSize, p1, p2))
320 circle(img, Point(32768 + 300, 100), 40, Scalar(0, 0, 255), 3); // draw
322 p2 = Point(32768 + 3, imgSize.height + 1000);
323 if (clipLine(Rect(32768 + 0, 0, imgSize.width, imgSize.height), p1, p2) && clipLine(imgSize, p1, p2))
324 circle(img, Point(65536 + 500, 300), 50, cvColorToScalar(255, CV_8UC3), 5, 8, 1); // draw
326 p1 = Point(imgSize.width, 1), p2 = Point(imgSize.width, 3);
327 if (clipLine(Rect(32768 + 0, 0, imgSize.width, imgSize.height), p1, p2) && clipLine(imgSize, p1, p2))
328 circle(img, Point(32768 + 390, 100), 10, Scalar(0, 0, 255), 3); // not draw
330 p1 = Point(imgSize.width - 1, 1), p2 = Point(imgSize.width, 3);
331 if (clipLine(Rect(32768 + 0, 0, imgSize.width, imgSize.height), p1, p2) && clipLine(imgSize, p1, p2))
332 ellipse(img, Point(32768 + 390, 100), Size(20, 30), 60, 0, 220.0, Scalar(0, 200, 0), 4); //draw
334 ellipse(img, RotatedRect(Point(32768 + 100, 200), Size(200, 100), 160), Scalar(200, 200, 255), 5);
337 ellipse2Poly(Point(32768 + 430, 180), Size(100, 150), 30, 0, 150, 20, polyline);
339 n = (int)polyline.size();
340 polylines(img, &pts, &n, 1, false, Scalar(0, 0, 150), 4, CV_AA);
342 for (vector<Point>::const_iterator it = polyline.begin(); n < (int)polyline.size() - 1; ++it, n++)
344 line(img, *it, *(it + 1), Scalar(50, 250, 100));
348 ellipse2Poly(Point(32768 + 500, 300), Size(50, 80), 0, 0, 180, 10, polyline);
350 n = (int)polyline.size();
351 polylines(img, &pts, &n, 1, true, Scalar(100, 200, 100), 20);
352 fillConvexPoly(img, pts, n, Scalar(0, 80, 0));
355 // external rectengular
356 polyline[0] = Point(32768 + 0, 0);
357 polyline[1] = Point(32768 + 80, 0);
358 polyline[2] = Point(32768 + 80, 80);
359 polyline[3] = Point(32768 + 0, 80);
360 // internal rectangular
361 polyline[4] = Point(32768 + 20, 20);
362 polyline[5] = Point(32768 + 60, 20);
363 polyline[6] = Point(32768 + 60, 60);
364 polyline[7] = Point(32768 + 20, 60);
365 const Point* ppts[] = { &polyline[0], &polyline[0] + 4 };
367 fillPoly(img, ppts, pn, 2, Scalar(100, 100, 0), 8, 0, Point(500, 20));
369 rectangle(img, Point(32768 + 0, 300), Point(32768 + 50, 398), Scalar(0, 0, 255));
371 string text1 = "OpenCV";
372 int baseline = 0, thickness = 3, fontFace = FONT_HERSHEY_SCRIPT_SIMPLEX;
374 Size textSize = getTextSize(text1, fontFace, fontScale, thickness, &baseline);
375 baseline += thickness;
376 Point textOrg((32768 + img.cols - textSize.width) / 2, (img.rows + textSize.height) / 2);
377 rectangle(img, textOrg + Point(0, baseline), textOrg + Point(textSize.width, -textSize.height), Scalar(0, 0, 255));
378 line(img, textOrg + Point(0, thickness), textOrg + Point(textSize.width, thickness), Scalar(0, 0, 255));
379 putText(img, text1, textOrg, fontFace, fontScale, Scalar(150, 0, 150), thickness, 8);
381 string text2 = "abcdefghijklmnopqrstuvwxyz1234567890";
382 Scalar color(200, 0, 0);
383 fontScale = 0.5, thickness = 1;
386 textSize = getTextSize(text2, FONT_HERSHEY_SIMPLEX, fontScale, thickness, &baseline);
387 textOrg = Point(32768 + 5, 5) + Point(0, textSize.height + dist);
388 putText(img, text2, textOrg, FONT_HERSHEY_SIMPLEX, fontScale, color, thickness, CV_AA);
391 textSize = getTextSize(text2, FONT_HERSHEY_PLAIN, fontScale, thickness, &baseline);
392 textOrg += Point(0, textSize.height + dist);
393 putText(img, text2, textOrg, FONT_HERSHEY_PLAIN, fontScale, color, thickness, CV_AA);
396 textSize = getTextSize(text2, FONT_HERSHEY_DUPLEX, fontScale, thickness, &baseline);
397 textOrg += Point(0, textSize.height + dist);
398 putText(img, text2, textOrg, FONT_HERSHEY_DUPLEX, fontScale, color, thickness, CV_AA);
400 textSize = getTextSize(text2, FONT_HERSHEY_COMPLEX, fontScale, thickness, &baseline);
401 textOrg += Point(0, textSize.height + dist);
402 putText(img, text2, textOrg, FONT_HERSHEY_COMPLEX, fontScale, color, thickness, CV_AA);
404 textSize = getTextSize(text2, FONT_HERSHEY_TRIPLEX, fontScale, thickness, &baseline);
405 textOrg += Point(0, textSize.height + dist);
406 putText(img, text2, textOrg, FONT_HERSHEY_TRIPLEX, fontScale, color, thickness, CV_AA);
409 textSize = getTextSize(text2, FONT_HERSHEY_COMPLEX_SMALL, fontScale, thickness, &baseline);
410 textOrg += Point(0, 180) + Point(0, textSize.height + dist);
411 putText(img, text2, textOrg, FONT_HERSHEY_COMPLEX_SMALL, fontScale, color, thickness, CV_AA);
413 textSize = getTextSize(text2, FONT_HERSHEY_SCRIPT_SIMPLEX, fontScale, thickness, &baseline);
414 textOrg += Point(0, textSize.height + dist);
415 putText(img, text2, textOrg, FONT_HERSHEY_SCRIPT_SIMPLEX, fontScale, color, thickness, CV_AA);
417 textSize = getTextSize(text2, FONT_HERSHEY_SCRIPT_COMPLEX, fontScale, thickness, &baseline);
418 textOrg += Point(0, textSize.height + dist);
419 putText(img, text2, textOrg, FONT_HERSHEY_SCRIPT_COMPLEX, fontScale, color, thickness, CV_AA);
421 dist = 15, fontScale = 0.5;
422 textSize = getTextSize(text2, FONT_ITALIC, fontScale, thickness, &baseline);
423 textOrg += Point(0, textSize.height + dist);
424 putText(img, text2, textOrg, FONT_ITALIC, fontScale, color, thickness, CV_AA);
426 img = img(Rect(32768, 0, 600, 400)).clone();
429 TEST(Drawing, cpp_regression) { CV_DrawingTest_CPP test; test.safe_run(); }
430 TEST(Drawing, far_regression) { CV_DrawingTest_Far test; test.safe_run(); }
432 class CV_FillConvexPolyTest : public cvtest::BaseTest
435 CV_FillConvexPolyTest() {}
436 ~CV_FillConvexPolyTest() {}
443 line1.push_back(Point(1, 1));
444 line1.push_back(Point(5, 1));
445 line1.push_back(Point(5, 8));
446 line1.push_back(Point(1, 8));
448 line2.push_back(Point(2, 2));
449 line2.push_back(Point(10, 2));
450 line2.push_back(Point(10, 16));
451 line2.push_back(Point(2, 16));
453 Mat gray0(10,10,CV_8U, Scalar(0));
454 fillConvexPoly(gray0, line1, Scalar(255), 8, 0);
455 int nz1 = countNonZero(gray0);
457 fillConvexPoly(gray0, line2, Scalar(0), 8, 1);
458 int nz2 = countNonZero(gray0)/255;
460 CV_Assert( nz1 == 40 && nz2 == 0 );
464 TEST(Drawing, fillconvexpoly_clipping) { CV_FillConvexPolyTest test; test.safe_run(); }
466 class CV_DrawingTest_UTF8 : public cvtest::BaseTest
469 CV_DrawingTest_UTF8() {}
470 ~CV_DrawingTest_UTF8() {}
474 vector<string> lines;
475 lines.push_back("abcdefghijklmnopqrstuvwxyz1234567890");
476 // cyrillic letters small
477 lines.push_back("\xD0\xB0\xD0\xB1\xD0\xB2\xD0\xB3\xD0\xB4\xD0\xB5\xD1\x91\xD0\xB6\xD0\xB7"
478 "\xD0\xB8\xD0\xB9\xD0\xBA\xD0\xBB\xD0\xBC\xD0\xBD\xD0\xBE\xD0\xBF\xD1\x80"
479 "\xD1\x81\xD1\x82\xD1\x83\xD1\x84\xD1\x85\xD1\x86\xD1\x87\xD1\x88\xD1\x89"
480 "\xD1\x8A\xD1\x8B\xD1\x8C\xD1\x8D\xD1\x8E\xD1\x8F");
481 // cyrillic letters capital
482 lines.push_back("\xD0\x90\xD0\x91\xD0\x92\xD0\x93\xD0\x94\xD0\x95\xD0\x81\xD0\x96\xD0\x97"
483 "\xD0\x98\xD0\x99\xD0\x9A\xD0\x9B\xD0\x9C\xD0\x9D\xD0\x9E\xD0\x9F\xD0\xA0"
484 "\xD0\xA1\xD0\xA2\xD0\xA3\xD0\xA4\xD0\xA5\xD0\xA6\xD0\xA7\xD0\xA8\xD0\xA9"
485 "\xD0\xAA\xD0\xAB\xD0\xAC\xD0\xAD\xD0\xAE\xD0\xAF");
487 lines.push_back("-\xD0\x80-\xD0\x8E-\xD0\x8F-");
488 lines.push_back("-\xD1\x90-\xD1\x91-\xD1\xBF-");
490 lines.push_back("-\x81-\x82-\x83-");
491 lines.push_back("--\xF0--");
492 lines.push_back("-\xF0");
495 fonts.push_back(FONT_HERSHEY_SIMPLEX);
496 fonts.push_back(FONT_HERSHEY_PLAIN);
497 fonts.push_back(FONT_HERSHEY_DUPLEX);
498 fonts.push_back(FONT_HERSHEY_COMPLEX);
499 fonts.push_back(FONT_HERSHEY_TRIPLEX);
500 fonts.push_back(FONT_HERSHEY_COMPLEX_SMALL);
501 fonts.push_back(FONT_HERSHEY_SCRIPT_SIMPLEX);
502 fonts.push_back(FONT_HERSHEY_SCRIPT_COMPLEX);
506 for (vector<int>::const_iterator font = fonts.begin(); font != fonts.end(); ++font)
508 for (int italic = 0; italic <= FONT_ITALIC; italic += FONT_ITALIC)
510 for (vector<string>::const_iterator line = lines.begin(); line != lines.end(); ++line)
512 const float fontScale = 1;
513 const int thickness = 1;
514 const Scalar color(20,20,20);
517 Size textSize = getTextSize(*line, *font | italic, fontScale, thickness, &baseline);
518 Point textOrg(0, textSize.height + 2);
519 Mat img(textSize + Size(0, baseline), CV_8UC3, Scalar(255, 255, 255));
520 putText(img, *line, textOrg, *font | italic, fontScale, color, thickness, CV_AA);
522 results.push_back(img);
523 bigSize.width = max(bigSize.width, img.size().width);
524 bigSize.height += img.size().height + 1;
530 Mat result(bigSize, CV_8UC3, Scalar(100, 100, 100));
531 for (vector<Mat>::const_iterator img = results.begin(); img != results.end(); ++img)
533 Rect roi(Point(0, shift), img->size());
534 Mat sub(result, roi);
536 shift += img->size().height + 1;
538 if (cvtest::debugLevel > 0)
539 imwrite("all_fonts.png", result);
543 TEST(Drawing, utf8_support) { CV_DrawingTest_UTF8 test; test.safe_run(); }
548 const int rows = 256;
549 const int cols = 256;
551 Mat img(rows, cols, CV_8UC1, Scalar(255));
553 line(img, Point(0, 10), Point(255, 10), Scalar(0), 2, 4);
554 line(img, Point(-5, 20), Point(260, 20), Scalar(0), 2, 4);
555 line(img, Point(10, 0), Point(10, 255), Scalar(0), 2, 4);
557 double x0 = 0.0/pow(2.0, -2.0);
558 double x1 = 255.0/pow(2.0, -2.0);
559 double y = 30.5/pow(2.0, -2.0);
561 line(img, Point(int(x0), int(y)), Point(int(x1), int(y)), Scalar(0), 2, 4, 2);
563 int pixelsDrawn = rows*cols - countNonZero(img);
564 ASSERT_EQ( (3*rows + cols)*3 - 3*9, pixelsDrawn);
567 TEST(Drawing, polylines_empty)
569 Mat img(100, 100, CV_8UC1, Scalar(0));
570 vector<Point> pts; // empty
571 polylines(img, pts, false, Scalar(255));
572 int cnt = countNonZero(img);
576 TEST(Drawing, polylines)
578 Mat img(100, 100, CV_8UC1, Scalar(0));
580 pts.push_back(Point(0, 0));
581 pts.push_back(Point(20, 0));
582 polylines(img, pts, false, Scalar(255));
583 int cnt = countNonZero(img);
587 TEST(Drawing, longline)
589 Mat mat = Mat::zeros(256, 256, CV_8UC1);
591 line(mat, cv::Point(34, 204), cv::Point(46400, 47400), cv::Scalar(255), 3);
592 EXPECT_EQ(310, cv::countNonZero(mat));
607 fillConvexPoly(mat, pt, 6, cv::Scalar(0));
609 EXPECT_EQ(0, cv::countNonZero(mat));
613 TEST(Drawing, putText_no_garbage)
616 Mat mat = Mat::zeros(sz, CV_8UC1);
618 mat = Scalar::all(0);
619 putText(mat, "029", Point(10, 350), 0, 10, Scalar(128), 15);
621 EXPECT_EQ(0, cv::countNonZero(mat(Rect(0, 0, 10, sz.height))));
622 EXPECT_EQ(0, cv::countNonZero(mat(Rect(sz.width-10, 0, 10, sz.height))));
623 EXPECT_EQ(0, cv::countNonZero(mat(Rect(205, 0, 10, sz.height))));
624 EXPECT_EQ(0, cv::countNonZero(mat(Rect(405, 0, 10, sz.height))));
630 Mat mat = Mat::zeros(Size(100,100), CV_8UC1);
632 ASSERT_THROW(line(mat, Point(1,1),Point(99,99),Scalar(255),0), cv::Exception);
635 TEST(Drawing, regression_16308)
637 Mat_<uchar> img(Size(100, 100), (uchar)0);
638 circle(img, Point(50, 50), 50, 255, 1, LINE_AA);
639 EXPECT_NE(0, (int)img.at<uchar>(0, 50));
640 EXPECT_NE(0, (int)img.at<uchar>(50, 0));
641 EXPECT_NE(0, (int)img.at<uchar>(50, 99));
642 EXPECT_NE(0, (int)img.at<uchar>(99, 50));
645 TEST(Drawing, fillpoly_circle)
647 Mat img_c(640, 480, CV_8UC3, Scalar::all(0));
648 Mat img_fp = img_c.clone(), img_fcp = img_c.clone(), img_fp3 = img_c.clone();
650 Point center1(img_c.cols/2, img_c.rows/2);
651 Point center2(img_c.cols/10, img_c.rows*3/4);
652 Point center3 = Point(img_c.cols, img_c.rows) - center2;
653 int radius = img_c.rows/4;
654 int radius_small = img_c.cols/15;
655 Scalar color(0, 0, 255);
657 circle(img_c, center1, radius, color, -1);
659 // check that circle, fillConvexPoly and fillPoly
660 // give almost the same result then asked to draw a single circle
662 ellipse2Poly(center1, Size(radius, radius), 0, 0, 360, 1, vtx);
663 fillConvexPoly(img_fcp, vtx, color);
664 fillPoly(img_fp, vtx, color);
665 double diff_fp = cv::norm(img_c, img_fp, NORM_L1)/(255*radius*2*CV_PI);
666 double diff_fcp = cv::norm(img_c, img_fcp, NORM_L1)/(255*radius*2*CV_PI);
667 EXPECT_LT(diff_fp, 1.);
668 EXPECT_LT(diff_fcp, 1.);
670 // check that fillPoly can draw 3 disjoint circles at once
671 circle(img_c, center2, radius_small, color, -1);
672 circle(img_c, center3, radius_small, color, -1);
674 vector<vector<Point> > vtx3(3);
676 ellipse2Poly(center2, Size(radius_small, radius_small), 0, 0, 360, 1, vtx3[1]);
677 ellipse2Poly(center3, Size(radius_small, radius_small), 0, 0, 360, 1, vtx3[2]);
678 fillPoly(img_fp3, vtx3, color);
679 double diff_fp3 = cv::norm(img_c, img_fp3, NORM_L1)/(255*(radius+radius_small*2)*2*CV_PI);
680 EXPECT_LT(diff_fp3, 1.);