vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

modules/cannops/samples/image_processing.cpp

@@ -0,0 +1,60 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#include <iostream>
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/cann.hpp>
+#include <opencv2/cann_interface.hpp>
+
+int main(int argc, char* argv[])
+{
+    cv::CommandLineParser parser(argc, argv,
+                                 "{@input|puppy.png|path to input image}"
+                                 "{@output|output.png|path to output image}"
+                                 "{help||show help}");
+    parser.about("This is a sample for image processing with Ascend NPU. \n");
+    if (argc != 3 || parser.has("help"))
+    {
+        parser.printMessage();
+        return 0;
+    }
+
+    std::string imagePath = parser.get<std::string>(0);
+    std::string outputPath = parser.get<std::string>(1);
+
+    // read input image and generate guass noise
+    //! [input_noise]
+    cv::Mat img = cv::imread(imagePath);
+    // Generate gauss noise that will be added into the input image
+    cv::Mat gaussNoise(img.rows, img.cols, img.type());
+    cv::RNG rng;
+    rng.fill(gaussNoise, cv::RNG::NORMAL, 0, 25);
+    //! [input_noise]
+
+    // setup cann
+    //! [setup]
+    cv::cann::initAcl();
+    cv::cann::setDevice(0);
+    //! [setup]
+
+    //! [image-process]
+    cv::Mat output;
+    // add gauss noise to the image
+    cv::cann::add(img, gaussNoise, output);
+    // rotate the image with a certain mode (0, 1 and 2, correspond to rotation of 90, 180 and 270
+    // degrees clockwise respectively)
+    cv::cann::rotate(output, output, 0);
+    // flip the image with a certain mode (0, positive and negative number, correspond to flipping
+    // around the x-axis, y-axis and both axes respectively)
+    cv::cann::flip(output, output, 0);
+    //! [image-process]
+
+    cv::imwrite(outputPath, output);
+
+    //! [tear-down-cann]
+    cv::cann::resetDevice();
+    cv::cann::finalizeAcl();
+    //! [tear-down-cann]
+    return 0;
+}