c_samples

samples/README.md

@@ -44,3 +44,26 @@ usage:
 ````
 runvx -frames:live OpenCV_orb-LIVE.gdf
 ````
+
+## C / C++ Samples
+
+MIVisionX samples IN C / C++
+
+### Canny
+
+usage:
+
+````
+cmake .
+make
+./cannyDetect --image <imageName> 
+./cannyDetect --live
+````
+### Orb Detect
+usage:
+
+````
+cmake .
+make
+./orbDetect
+````

samples/c_samples/canny/CMakeLists.txt

@@ -0,0 +1,37 @@
+################################################################################
+#
+# MIT License
+#
+# Copyright (c) 2018 Advanced Micro Devices, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+################################################################################
+
+cmake_minimum_required (VERSION 2.8)
+project (cannyDetect)
+set (CMAKE_CXX_STANDARD 11)
+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
+find_package(OpenCL REQUIRED)
+find_package(OpenCV REQUIRED)
+include_directories (/opt/rocm/mivisionx/include)
+link_directories    (/opt/rocm/mivisionx/lib)
+add_executable(cannyDetect canny.cpp)
+target_link_libraries(${PROJECT_NAME} openvx ${OpenCV_LIBRARIES})
+

samples/c_samples/canny/canny.cpp

@@ -0,0 +1,170 @@
+#include <VX/vx.h>
+#include <VX/vx_compatibility.h>
+#include <vx_ext_opencv.h>
+
+using namespace cv;
+using namespace std;
+
+#define ERROR_CHECK_STATUS( status ) { \
+        vx_status status_ = (status); \
+        if(status_ != VX_SUCCESS) { \
+            printf("ERROR: failed with status = (%d) at " __FILE__ "#%d\n", status_, __LINE__); \
+            exit(1); \
+        } \
+}
+
+#define ERROR_CHECK_OBJECT( obj ) { \
+        vx_status status_ = vxGetStatus((vx_reference)(obj)); \
+        if(status_ != VX_SUCCESS) { \
+            printf("ERROR: failed with status = (%d) at " __FILE__ "#%d\n", status_, __LINE__); \
+            exit(1); \
+        } \
+}
+
+static void VX_CALLBACK log_callback(vx_context context, vx_reference ref, vx_status status, const vx_char string[])
+{
+    size_t len = strlen(string);
+    if (len > 0) {
+        printf("%s", string);
+        if (string[len - 1] != '\n')
+            printf("\n");
+        fflush(stdout);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    if (argc < 2) {
+        printf("Usage:\n"
+                "./cannyDetect --image <imageName>\n"
+                "./cannyDetect --live \n");
+        return 0;
+    }
+
+    int width = 480, height = 360;
+
+    vx_context context = vxCreateContext();
+    ERROR_CHECK_OBJECT(context);
+    vxRegisterLogCallback(context, log_callback, vx_false_e);
+
+    vx_graph graph = vxCreateGraph(context);
+    ERROR_CHECK_OBJECT(graph);
+
+    vx_image input_rgb_image = vxCreateImage(context, width, height, VX_DF_IMAGE_RGB);
+    vx_image output_filtered_image = vxCreateImage(context, width, height, VX_DF_IMAGE_U8);
+    ERROR_CHECK_OBJECT(input_rgb_image);
+    ERROR_CHECK_OBJECT(output_filtered_image);
+
+    vx_image yuv_image  = vxCreateVirtualImage(graph, width, height, VX_DF_IMAGE_IYUV);
+    vx_image luma_image = vxCreateVirtualImage(graph, width, height, VX_DF_IMAGE_U8);
+    ERROR_CHECK_OBJECT(yuv_image);
+    ERROR_CHECK_OBJECT(luma_image);
+
+    vx_threshold hyst = vxCreateThreshold(context, VX_THRESHOLD_TYPE_RANGE, VX_TYPE_UINT8);
+    vx_int32 lower = 80, upper = 100;
+    vxSetThresholdAttribute(hyst, VX_THRESHOLD_ATTRIBUTE_THRESHOLD_LOWER, &lower, sizeof(lower));
+    vxSetThresholdAttribute(hyst, VX_THRESHOLD_ATTRIBUTE_THRESHOLD_UPPER, &upper, sizeof(upper));
+    ERROR_CHECK_OBJECT(hyst);
+    vx_int32 gradient_size = 3;
+
+    vx_node nodes[] =
+    {
+        vxColorConvertNode(graph, input_rgb_image, yuv_image),
+        vxChannelExtractNode(graph, yuv_image, VX_CHANNEL_Y, luma_image),
+        vxCannyEdgeDetectorNode(graph, luma_image, hyst, gradient_size, VX_NORM_L1, output_filtered_image)
+    };
+
+    for( vx_size i = 0; i < sizeof( nodes ) / sizeof( nodes[0] ); i++ )
+    {
+        ERROR_CHECK_OBJECT( nodes[i] );
+        ERROR_CHECK_STATUS( vxReleaseNode( &nodes[i] ) );
+    }
+
+    ERROR_CHECK_STATUS( vxVerifyGraph( graph ) );
+
+    string option = argv[1];
+    Mat input;
+
+    if (option == "--image") {
+        input = imread(argv[2]);
+        if (input.empty()) {
+           printf("Image not found\n");
+           return 0;
+        }
+        resize(input, input, Size(width, height));
+        imshow("inputWindow", input);
+        vx_rectangle_t cv_rgb_image_region;
+        cv_rgb_image_region.start_x    = 0;
+        cv_rgb_image_region.start_y    = 0;
+        cv_rgb_image_region.end_x      = width;
+        cv_rgb_image_region.end_y      = height;
+        vx_imagepatch_addressing_t cv_rgb_image_layout;
+        cv_rgb_image_layout.stride_x   = 3;
+        cv_rgb_image_layout.stride_y   = input.step;
+        vx_uint8 * cv_rgb_image_buffer = input.data;
+        ERROR_CHECK_STATUS( vxCopyImagePatch( input_rgb_image, &cv_rgb_image_region, 0,
+                                            &cv_rgb_image_layout, cv_rgb_image_buffer,
+                                            VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST ) );
+        ERROR_CHECK_STATUS( vxProcessGraph( graph ) );
+        vx_rectangle_t rect = { 0, 0, (vx_uint32)width, (vx_uint32)height };
+        vx_map_id map_id;
+        vx_imagepatch_addressing_t addr;
+        void * ptr;
+        ERROR_CHECK_STATUS( vxMapImagePatch( output_filtered_image, &rect, 0, &map_id, &addr, &ptr,
+                                            VX_READ_ONLY, VX_MEMORY_TYPE_HOST, VX_NOGAP_X ) );
+        Mat mat( height, width, CV_8U, ptr, addr.stride_y );
+        imshow( "CannyDetect", mat );
+        waitKey(0);
+        ERROR_CHECK_STATUS( vxUnmapImagePatch( output_filtered_image, map_id ) );
+    }
+    else if (option == "--live") {
+        VideoCapture cap(0);
+        if (!cap.isOpened()) {
+            printf("Unable to open camera\n");
+            return 0;
+        }
+        for(;;) {
+            cap >> input;
+            resize(input, input, Size(width, height));
+            imshow("inputWindow", input);
+            if(waitKey(30) >= 0) break;
+            vx_rectangle_t cv_rgb_image_region;
+            cv_rgb_image_region.start_x    = 0;
+            cv_rgb_image_region.start_y    = 0;
+            cv_rgb_image_region.end_x      = width;
+            cv_rgb_image_region.end_y      = height;
+            vx_imagepatch_addressing_t cv_rgb_image_layout;
+            cv_rgb_image_layout.stride_x   = 3;
+            cv_rgb_image_layout.stride_y   = input.step;
+            vx_uint8 * cv_rgb_image_buffer = input.data;
+            ERROR_CHECK_STATUS( vxCopyImagePatch( input_rgb_image, &cv_rgb_image_region, 0,
+                                                &cv_rgb_image_layout, cv_rgb_image_buffer,
+                                                VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST ) );
+            ERROR_CHECK_STATUS( vxProcessGraph( graph ) );
+            vx_rectangle_t rect = { 0, 0, (vx_uint32)width, (vx_uint32)height };
+            vx_map_id map_id;
+            vx_imagepatch_addressing_t addr;
+            void * ptr;
+            ERROR_CHECK_STATUS( vxMapImagePatch( output_filtered_image, &rect, 0, &map_id, &addr, &ptr,
+                                            VX_READ_ONLY, VX_MEMORY_TYPE_HOST, VX_NOGAP_X ) );
+            Mat mat( height, width, CV_8U, ptr, addr.stride_y );
+            imshow( "CannyDetect", mat );
+            if(waitKey(30) >= 0) break;
+            ERROR_CHECK_STATUS( vxUnmapImagePatch( output_filtered_image, map_id ) );
+        }
+    }
+    else {
+        printf("Usage:\n"
+                "./cannyDetect --image <imageName>\n"
+                "./cannyDetect --live \n");
+        return 0;
+    }
+
+    ERROR_CHECK_STATUS( vxReleaseGraph( &graph ) );
+    ERROR_CHECK_STATUS( vxReleaseImage( &yuv_image ) );
+    ERROR_CHECK_STATUS( vxReleaseImage( &luma_image ) );
+    ERROR_CHECK_STATUS( vxReleaseImage( &input_rgb_image ) );
+    ERROR_CHECK_STATUS( vxReleaseImage( &output_filtered_image ) );
+    ERROR_CHECK_STATUS( vxReleaseContext( &context ) );
+    return 0;
+}

samples/c_samples/opencv_orb/CMakeLists.txt

@@ -0,0 +1,37 @@
+################################################################################
+#
+# MIT License
+#
+# Copyright (c) 2018 Advanced Micro Devices, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+################################################################################
+
+cmake_minimum_required (VERSION 2.8)
+project (orbDetect)
+set (CMAKE_CXX_STANDARD 11)
+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
+find_package(OpenCL REQUIRED)
+find_package(OpenCV REQUIRED)
+include_directories (/opt/rocm/mivisionx/include)
+link_directories    (/opt/rocm/mivisionx/lib)
+add_executable(orbDetect orb.cpp)
+target_link_libraries(${PROJECT_NAME} openvx vx_opencv ${OpenCV_LIBRARIES})
+