viz yolo3

src/NetworkViz.cpp

@@ -0,0 +1,69 @@
+#include <opencv2/core/core.hpp>
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/videoio.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+#include "tkDNN/NetworkViz.h"
+
+namespace tk { namespace dnn {
+
+cv::Mat vizFloat2colorMap(cv::Mat map) {
+
+    double min;
+    double max;
+    cv::minMaxIdx(map, &min, &max);
+    cv::Mat adjMap;
+    // expand your range to 0..255. Similar to histEq();
+    map.convertTo(adjMap,CV_8UC1, 255 / (max-min), -min); 
+    //return adjMap;
+
+    
+    cv::Mat falseColorsMap;
+    applyColorMap(adjMap, falseColorsMap, cv::COLORMAP_HOT);
+    return falseColorsMap;
+}
+
+cv::Mat vizData2Mat(dnnType *dataInput, tk::dnn::dataDim_t dim, int imgdim) {
+    dnnType *data = nullptr;
+
+    // copy to CPU
+    if(isCudaPointer(dataInput)) {
+        data = new dnnType[dim.tot()];
+        checkCuda( cudaMemcpy(data, dataInput, dim.tot()*sizeof(dnnType), cudaMemcpyDeviceToHost) );
+    } else {
+        data = dataInput;
+    }
+
+    int gridDim = ceil(sqrt(dim.c));
+    cv::Size gridSize(dim.w*gridDim, dim.h*gridDim);
+    cv::Mat grid = cv::Mat(gridSize, CV_8UC3, cv::Scalar(0));    
+
+    for(int i=0; i<dim.c;i++) {
+        cv::Mat raw = vizFloat2colorMap(cv::Mat(cv::Size(dim.w, dim.h),CV_32FC1, data + dim.w*dim.h*i));
+        int r = i / gridDim;
+        int c = i - r * gridDim;
+        raw.copyTo(grid.rowRange(r*dim.h, r*dim.h + dim.h).colRange(c*dim.w, c*dim.w + dim.w));
+    }
+
+    float ar = float(dim.w)/dim.h;
+    cv::Size vdim(ar*imgdim, imgdim);
+    cv::Mat viz;
+    cv::resize(grid, viz, vdim, 0, 0, 0);
+    
+    // free memory
+    if(isCudaPointer(dataInput)) {
+        delete [] data;
+    }
+    return viz;
+}
+
+cv::Mat vizLayer2Mat(tk::dnn::Network *net, int layer, int imgdim) {
+    if(layer >= net->num_layers)
+        FatalError("Could not viz layer\n");
+    return vizData2Mat(net->layers[layer]->dstData, net->layers[layer]->output_dim, imgdim);
+
+    //cv::imwrite("viz/layer" + std::to_string(layer) + ".png", viz);
+    //cv::imshow("layer", viz);
+    //cv::waitKey(0);
+}
+
+}}