Add icf app

apps/CMakeLists.txt

+add_definitions(-D__OPENCV_BUILD=1)
+link_libraries(${OPENCV_LINKER_LIBS})
+
+add_subdirectory(icf)

apps/icf/CMakeLists.txt

+set(name icf)
+set(the_target opencv_${name})
+
+set(OPENCV_${the_target}_DEPS opencv_core opencv_imgproc)
+ocv_check_dependencies(${OPENCV_${the_target}_DEPS})
+
+if(NOT OCV_DEPENDENCIES_FOUND)
+  return()
+endif()
+
+project(${the_target})
+
+ocv_include_directories("${OpenCV_SOURCE_DIR}/include/opencv")
+ocv_include_modules(${OPENCV_${the_target}_DEPS})
+
+file(GLOB ${the_target}_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
+
+add_executable(${the_target} ${${the_target}_SOURCES})
+
+target_link_libraries(${the_target} ${OPENCV_${the_target}_DEPS})
+
+set_target_properties(${the_target} PROPERTIES
+                      DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
+                      ARCHIVE_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH}
+                      RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}
+                      INSTALL_NAME_DIR lib
+                      OUTPUT_NAME "opencv_trainicfcascade")
+
+if(ENABLE_SOLUTION_FOLDERS)
+  set_target_properties(${the_target} PROPERTIES FOLDER "applications")
+endif()
+
+install(TARGETS ${the_target} RUNTIME DESTINATION bin COMPONENT main)

apps/icf/main.cpp

+#include <cstdio>
+#include <cstring>
+
+#include <string>
+using std::string;
+
+#include <vector>
+using std::vector;
+
+#include <opencv2/core.hpp>
+using cv::Rect;
+
+#include "icfdetector.hpp"
+#include "waldboost.hpp"
+
+static bool read_pos_int(const char *str, int *n)
+{
+    int pos = 0;
+    if( sscanf(str, "%d%n", n, &pos) != 1 || str[pos] != '\0' || *n <= 0 )
+    {
+        return false;
+    }
+    return true;
+}
+
+static bool read_model_size(char *str, int *rows, int *cols)
+{
+    int pos = 0;
+    if( sscanf(str, "%dx%d%n", rows, cols, &pos) != 2 || str[pos] != '\0' ||
+        *rows <= 0 || *cols <= 0)
+    {
+        return false;
+    }
+    return true;
+}
+
+static bool read_overlap(const char *str, double *overlap)
+{
+    int pos = 0;
+    if( sscanf(str, "%lf%n", overlap, &pos) != 1 || str[pos] != '\0' ||
+        *overlap < 0 || *overlap > 1)
+    {
+        return false;
+    }
+    return true;
+}
+
+static vector< vector<Rect> > read_labelling(const string& filename)
+{
+    return vector< vector<Rect> >();
+}
+
+static vector<string> get_filenames(const string &labelling_path)
+{
+    return vector<string>();
+}
+
+int main(int argc, char *argv[])
+{
+    if( argc == 1 )
+    {
+        printf("Usage: %s OPTIONS, where OPTIONS are:\n"
+               "\n"
+               "--labelling <path> - path to labelling\n"
+               "    (data should be in the same directory)\n"
+               "\n"
+               "--feature_count <count> - number of features to generate\n"
+               "\n"
+               "--weak_count <count> - number of weak classifiers in cascade\n"
+               "\n"
+               "--model_size <rowsxcols> - model size in pixels\n"
+               "\n"
+               "--overlap <measure> - number from [0, 1], means maximum\n"
+               "    overlap with objects while sampling background\n"
+               "\n"
+               "--model_filename <path> - filename for saving model\n",
+               argv[0]);
+        return 0;
+    }
+
+    string labelling_path, model_path;
+    ICFDetectorParams params;
+    for( int i = 1; i < argc; ++i )
+    {
+        if( !strcmp("--labelling", argv[i]) )
+        {
+            i += 1;
+            labelling_path = argv[i];
+        }
+        else if( !strcmp("--feature_count", argv[i]) )
+        {
+            i += 1;
+            if( !read_pos_int(argv[i], &params.feature_count) )
+            {
+                fprintf(stderr, "Error reading feature count from `%s`\n",
+                        argv[i]);
+                return 1;
+            }
+        }
+        else if( !strcmp("--weak_count", argv[i]) )
+        {
+            i += 1;
+            if( !read_pos_int(argv[i], &params.weak_count) )
+            {
+                fprintf(stderr, "Error reading weak count from `%s`\n",
+                        argv[i]);
+                return 1;
+            }
+        }
+        else if( !strcmp("--model_size", argv[i]) )
+        {
+            i += 1;
+            if( !read_model_size(argv[i], &params.model_n_rows,
+                                  &params.model_n_cols) )
+            {
+                fprintf(stderr, "Error reading model size from `%s`\n",
+                        argv[i]);
+                return 1;
+            }
+        }
+        else if( !strcmp("--overlap", argv[i]) )
+        {
+            i += 1;
+            if( !read_overlap(argv[i], &params.overlap) )
+            {
+                fprintf(stderr, "Error reading overlap from `%s`\n",
+                        argv[i]);
+                return 1;
+            }
+        }
+        else if( !strcmp("--model_filename", argv[i]) )
+        {
+            i += 1;
+            model_path = argv[i];
+        }
+        else
+        {
+            fprintf(stderr, "Error: unknown argument `%s`\n", argv[i]);
+            return 1;
+        }
+
+    }
+
+    try
+    {
+        ICFDetector detector;
+        vector< vector<Rect> > labelling = read_labelling(labelling_path);
+        vector<string> filenames = get_filenames(labelling_path);
+        detector.train(filenames, labelling, params);
+    }
+    catch( const char *err )
+    {
+        fprintf(stderr, "%s", err);
+    }
+    catch( ... )
+    {
+        fprintf(stderr, "Unknown error\n");
+    }
+}