Add some examples

examples/test.php

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+<?php
+
+$i = OpenCV\Image::load("test.jpg", OpenCV\Image::LOAD_IMAGE_COLOR);
+//var_dump($i);
+//$i->setImageROI(200, 200, 200, 200);
+//var_dump($i->getImageROI());
+//$i->resetImageROI();
+//$i2 = $i->smooth(OpenCV\Image::GAUSSIAN, 31, 0, 0, 0);
+//$i2 = $i->laplace(3);
+//$i2 = $i->sobel(1, 0, 1);
+//$i2 = $i->erode(3);
+//$i2 = $i->dilate(3);
+//$i2 = $i->open(3);
+//$i2 = $i->close(3);
+//$i2 = $i->gradient(3);
+/*
+	$i2 = $i->blackHat(2);
+var_dump($i2);
+try {
+	$i2->save("test2.jpg");
+} catch (Exception $e) {
+	var_dump($e);
+}
+ */
+
+/*
+$dst = new OpenCV\Image(250, 250, OpenCV\Image::DEPTH_8U, 3);
+var_dump($dst);
+$i->resize($dst);
+try {
+	$dst->save("test3.jpg");
+} catch (Exception $e) {
+	var_dump($e);
+}
+ */
+
+/*
+	$dst = $i->pyrUp(OpenCV\Image::GAUSSIAN_5x5);
+$dst = $dst->pyrUp(OpenCV\Image::GAUSSIAN_5x5);
+$dst->save("pyr.jpg");
+ */
+$dst = $i->canny(10, 50, 3);
+$dst->save('canny.jpg');
+
+
+//var_dump($i instanceof OpenCV\Mat);
+//var_dump($i instanceof OpenCV\Arr);
+
+//$m = new OpenCV\Mat(100, 100, 0);
+//var_dump($m);

examples/test_capture.php

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+<?php
+/* Test the face detectoin feature, using a capture from the camera */
+$capture = new OpenCV\Capture(0);
+$image = $capture->queryFrame();
+$result = $image->haarDetectObjects("data/haarcascades/haarcascade_frontalface_default.xml");
+foreach ($result as $r) {
+	$image->rectangle($r['x'], $r['y'], $r['width'], $r['height']);
+}
+$image = $image->convertColor(RGB2GRAY);
+$image->save('/tmp/camera.jpg');

examples/test_convert.php

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+<?php
+$i = OpenCV\Image::load("test.jpg", OpenCV\Image::LOAD_IMAGE_COLOR);
+$hsv = $i->convertColor(OpenCV\Image::RGB2HSV);
+$hsv->save("hsv.jpg");

examples/test_edge_detect.php

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+<?php
+use OpenCV\Image as Image;
+use OpenCV\Histogram as Histogram;
+
+$i = Image::load("test.jpg", Image::LOAD_IMAGE_COLOR);
+$dst = $i->sobel(1, 0, 1);
+$dst->save("test_sobel.jpg");
+
+$dst2 = $i->canny(10, 50, 3);
+$dst2->save("test_canny.jpg");

examples/test_file_capture.php

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+<?php
+$capture = OpenCV\Capture::createFileCapture('movie.avi');
+$image = $capture->queryFrame();
+$result = $image->haarDetectObjects("data/haarcascades/haarcascade_frontalface_default.xml");
+foreach ($result as $r) {
+	$image->rectangle($r['x'], $r['y'], $r['width'], $r['height']);
+}
+$image->save('/tmp/video.jpg');

examples/test_haar.php

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+<?php
+use OpenCV\Image as Image;
+use OpenCV\Histogram as Histogram;
+
+$i = Image::load("test.jpg", Image::LOAD_IMAGE_COLOR);
+$result = $i->haarDetectObjects("data/haarcascades/haarcascade_frontalface_default.xml");
+
+foreach ($result as $r) {
+	$i->rectangle($r['x'], $r['y'], $r['width'], $r['height']);
+}
+
+$i->save("haar_output.jpg");

examples/test_hist.php

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+<?php
+use OpenCV\Image as Image;
+use OpenCV\Histogram as Histogram;
+
+/* Load the sample image */
+$i = Image::load("sample.jpg", Image::LOAD_IMAGE_COLOR);
+$hsv = $i->convertColor(Image::RGB2HSV);
+$planes = $hsv->split();
+$hist = new Histogram(1, 32, CV_HIST_ARRAY);
+$hist->calc($planes[0]);
+
+/* Load the target image */
+$i2 = Image::load("target.jpg", Image::LOAD_IMAGE_COLOR);
+$hsv2 = $i2->convertColor(Image::RGB2HSV);
+$planes2 = $hsv2->split();
+$result = $planes2[0]->backProject($hist);
+
+/* Dilate the image to make the objects more obvious */
+$result = $result->dilate(2);
+$result->save("back_project_output.jpg");

examples/test_smooth.php

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+<?php
+use OpenCV\Image as Image;
+use OpenCV\Histogram as Histogram;
+
+$i = Image::load("test.jpg", Image::LOAD_IMAGE_COLOR);
+$dst = $i->smooth(Image::GAUSSIAN, 31, 0, 0, 0);
+$dst->save("test_smoothed.jpg");

examples/test_split.php

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+<?php
+/* Split the image by planes */
+$i = OpenCV\Image::load("test.jpg", OpenCV\Image::LOAD_IMAGE_COLOR);
+$split = $i->split();
+$i = 0;
+foreach ($split as $plane) {
+	$i++;
+	$plane->save("split_$i.jpg");
+}

examples/test_template.php

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+<?php
+use OpenCV\Image as Image;
+use OpenCV\Histogram as Histogram;
+
+echo "Loading sample\n";
+$im = Image::load("elephpant_sample.jpg", Image::LOAD_IMAGE_COLOR);
+$im2 = Image::load("dragonbe_elephpants.jpg", Image::LOAD_IMAGE_COLOR);
+
+for ($i = 0; $i < 6; $i++) {
+	$result = $im2->matchTemplate($im, $i);
+	$result->save("mt_output_$i.jpg");
+}