Convert DnnDetector's test image to PPM

YARP 3.3 doesn't support PNG.

Author: PeterBowman

examples/cpp/exampleDnnDetector/exampleDnnDetector.cpp

@@ -37,11 +37,11 @@ int main(int argc, char * argv[])
 
     yarp::os::ResourceFinder rf;
     rf.setDefaultContext("DnnDetector");
-    std::string qrFullName = rf.findFileByName("tests/teddy-bear.png");
+    std::string qrFullName = rf.findFileByName("tests/teddy-bear.ppm");
 
     yarp::sig::ImageOf<yarp::sig::PixelRgb> yarpImgRgb;
 
-    if (!yarp::sig::file::read(yarpImgRgb, qrFullName, yarp::sig::file::FORMAT_PNG))
+    if (!yarp::sig::file::read(yarpImgRgb, qrFullName, yarp::sig::file::FORMAT_PPM))
     {
         yError() << "Image file not available";
         return 1;

examples/python/exampleDnnDetector.py

@@ -5,8 +5,8 @@
 
 detectorOptions = yarp.Property()
 detectorOptions.put("device", "DnnDetector")
-detectorOptions.put("trainedModel", "yolov3-tiny.weights")
-detectorOptions.put("configDNNModel", "yolov3-tiny.cfg")
+detectorOptions.put("trainedModel", "yolov3-tiny/yolov3-tiny.weights")
+detectorOptions.put("configDNNModel", "yolov3-tiny/yolov3-tiny.cfg")
 detectorOptions.put("classesTrainedModel", "coco-object-categories.txt")
 
 detectorDevice = yarp.PolyDriver(detectorOptions)
@@ -19,10 +19,10 @@
 
 rf = yarp.ResourceFinder()
 rf.setDefaultContext("DnnDetector")
-sampleFullName = rf.findFileByName("tests/teddy-bear.png")
+sampleFullName = rf.findFileByName("tests/teddy-bear.ppm")
 yarpImgRgb = yarp.ImageRgb()
 
-if not yarp.read(yarpImgRgb, sampleFullName, yarp.FORMAT_PNG):
+if not yarp.read(yarpImgRgb, sampleFullName, yarp.FORMAT_PPM):
     print("Image file not available")
     raise SystemExit
 

share/DnnDetector/CMakeLists.txt

@@ -12,5 +12,5 @@ if(DOWNLOAD_MODELS)
                  DESTINATION ${ROBOTICSLAB-VISION_CONTEXTS_INSTALL_DIR}/DnnDetector)
 endif()
 
-yarp_install(FILES tests/teddy-bear.png
+yarp_install(FILES tests/teddy-bear.ppm
              DESTINATION ${ROBOTICSLAB-VISION_CONTEXTS_INSTALL_DIR}/DnnDetector/tests)

share/DnnDetector/tests/teddy-bear.png

@@ -66,11 +66,11 @@ TEST_F(DnnDetectorTest, DnnDetector2)
 {
     yarp::os::ResourceFinder rf;
     rf.setDefaultContext("DnnDetector");
-    std::string qrFullName = rf.findFileByName("tests/teddy-bear.png");
+    std::string qrFullName = rf.findFileByName("tests/teddy-bear.ppm");
     ASSERT_FALSE(qrFullName.empty());
 
     yarp::sig::ImageOf<yarp::sig::PixelRgb> yarpImgRgb;
-    ASSERT_TRUE(yarp::sig::file::read(yarpImgRgb, qrFullName, yarp::sig::file::FORMAT_PNG));
+    ASSERT_TRUE(yarp::sig::file::read(yarpImgRgb, qrFullName, yarp::sig::file::FORMAT_PPM));
 
     yarp::os::Bottle detectedObjects;
     ASSERT_TRUE(iDetector->detect(yarpImgRgb, detectedObjects));