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/*
* unit tests for MeterOCR.cpp
* Author: Matthias Behr, 2015
*/
#include <json-c/json.h>
#include <protocols/MeterOCR.hpp>
#include <test_config.hpp>
#include "gtest/gtest.h"
class MeterOCR_Test {
public:
static void test_calcImpulses();
static void test_roundBasedOnSmallerDigits();
};
TEST(MeterOCR, basic2_needle_autofix) {
std::list<Option> options;
options.emplace_back("file", ocrTestImage("img2.png"));
options.push_back(
Option("rotate", -2.0)); // rotate by -2deg (counterclockwise)// 661, 539, 585/680
struct json_object *jso = json_tokener_parse("[{\"type\": \"needle\", \"boundingboxes\":[\
{\"identifier\": \"water cons\", \"scaler\":-1,\"digit\":false, \"circle\": {\"cx\": 689, \"cy\": 449, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-2,\"digit\":false, \"circle\": {\"cx\": 661, \"cy\": 539, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-3,\"digit\":false, \"circle\": {\"cx\": 574, \"cy\": 576, \"cr\": 24}, \"confidence_id\": \"conf_circle\"},\
{\"identifier\": \"water cons\", \"scaler\":-4,\"digit\":true, \"circle\": {\"cx\": 488, \"cy\": 542, \"cr\": 24}}\
]}]"); // should detect 0,3767
options.push_back(Option("recognizer", jso));
json_object_put(jso);
jso = json_tokener_parse("\
{\"range\": 20, \"x\": 465, \"y\":395}\
");
options.push_back(Option("autofix", jso));
json_object_put(jso);
MeterOCR m(options);
ASSERT_EQ(SUCCESS, m.open());
std::vector<Reading> rds;
rds.resize(2);
EXPECT_EQ(2, m.read(rds, 2));
double value = rds[0].value();
EXPECT_TRUE(std::abs(0.3767 - value) < 0.00001);
value = rds[1].value();
EXPECT_GT(value, 80.0); // expect conf. >80
ASSERT_EQ(0, m.close());
}
TEST(MeterOCR, basic2_needle_autofix_impulses) {
std::list<Option> options;
options.emplace_back("file", ocrTestImage("img2_blue.png"));
options.push_back(Option("generate_debug_image", false));
options.push_back(Option("impulses", 10000));
options.push_back(
Option("rotate", -2.0)); // rotate by -2deg (counterclockwise)// 661, 539, 585/680
struct json_object *jso =
json_tokener_parse("[{\"type\": \"needle\",\"kernelColorString\":\"-2 -2 2 0 0 0 0 0 0\",\
\"boundingboxes\":[\
{\"identifier\": \"water cons\", \"scaler\":-1,\"digit\":false, \"circle\": {\"cx\": 689, \"cy\": 449, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-2,\"digit\":false, \"circle\": {\"cx\": 661, \"cy\": 539, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-3,\"digit\":false, \"circle\": {\"cx\": 574, \"cy\": 576, \"cr\": 24}, \"confidence_id\": \"conf_circle\"},\
{\"identifier\": \"water cons\", \"scaler\":-4,\"digit\":true, \"circle\": {\"cx\": 488, \"cy\": 542, \"cr\": 24}}\
],\
}]"); // should detect 0,3767
options.push_back(Option("recognizer", jso));
json_object_put(jso);
jso = json_tokener_parse("\
{\"range\": 20, \"x\": 465, \"y\":395}\
");
options.push_back(Option("autofix", jso));
json_object_put(jso);
MeterOCR m(options);
ASSERT_EQ(SUCCESS, m.open());
std::vector<Reading> rds;
rds.resize(2);
EXPECT_EQ(0, m.read(rds, 2));
m.set_forced_file_changed();
// expect 0 readings on first read
ASSERT_EQ(2, m.read(rds, 2));
// expect 2 on 2nd read
double value = rds[0].value(); // but with same pic no impulses. // TODO add interface to change
// file between reads
EXPECT_TRUE(std::abs(value) < 0.00001);
value = rds[1].value();
EXPECT_GT(value, 80.0); // expect conf. >80
ASSERT_EQ(0, m.close());
}
TEST(MeterOCR, basic2_needle_autofix_impulses_debug_image) {
std::list<Option> options;
options.emplace_back("file", ocrTestImage("img2.png"));
options.push_back(Option("generate_debug_image", true));
options.push_back(Option("impulses", 10000));
options.push_back(
Option("rotate", -2.0)); // rotate by -2deg (counterclockwise)// 661, 539, 585/680
struct json_object *jso = json_tokener_parse("[{\"type\": \"needle\", \"boundingboxes\":[\
{\"identifier\": \"water cons\", \"scaler\":-1,\"digit\":false, \"circle\": {\"cx\": 689, \"cy\": 449, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-2,\"digit\":false, \"circle\": {\"cx\": 661, \"cy\": 539, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-3,\"digit\":false, \"circle\": {\"cx\": 574, \"cy\": 576, \"cr\": 24}, \"confidence_id\": \"conf_circle\"},\
{\"identifier\": \"water cons\", \"scaler\":-4,\"digit\":true, \"circle\": {\"cx\": 488, \"cy\": 542, \"cr\": 24}}\
]}]"); // should detect 0,3767
options.push_back(Option("recognizer", jso));
json_object_put(jso);
jso = json_tokener_parse("\
{\"range\": 20, \"x\": 465, \"y\":395}\
");
options.push_back(Option("autofix", jso));
json_object_put(jso);
MeterOCR m(options);
ASSERT_EQ(SUCCESS, m.open());
std::vector<Reading> rds;
rds.resize(2);
EXPECT_EQ(0, m.read(rds, 2));
m.set_forced_file_changed();
// expect 0 readings on first read
EXPECT_EQ(2, m.read(rds, 2));
// expect 2 on 2nd read
double value = rds[0].value(); // but with same pic no impulses. // TODO add interface to change
// file between reads
EXPECT_TRUE(std::abs(value) < 0.00001);
value = rds[1].value();
EXPECT_GT(value, 80.0); // expect conf. >80
ASSERT_EQ(0, m.close());
}
void MeterOCR_Test::test_calcImpulses() {
std::list<Option> options;
options.emplace_back("file", ocrTestImage("img2.png"));
options.push_back(Option("impulses", 10));
struct json_object *jso = json_tokener_parse("[{\"type\": \"needle\", \"boundingboxes\":[\
{\"identifier\": \"water cons\", \"scaler\":-1,\"digit\":false, \"circle\": {\"cx\": 689, \"cy\": 449, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-2,\"digit\":false, \"circle\": {\"cx\": 661, \"cy\": 539, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-3,\"digit\":false, \"circle\": {\"cx\": 574, \"cy\": 576, \"cr\": 24}, \"confidence_id\": \"conf_circle\"},\
{\"identifier\": \"water cons\", \"scaler\":-4,\"digit\":true, \"circle\": {\"cx\": 488, \"cy\": 542, \"cr\": 24}}\
]}]"); // should detect 0,3767
options.push_back(Option("recognizer", jso));
MeterOCR m(options);
// let's test calcImpulses:
ASSERT_EQ(0, m.calcImpulses(0.1, 0.1));
ASSERT_EQ(0, m.calcImpulses(-0.1, -0.1));
ASSERT_EQ(0, m.calcImpulses(1001.2, 1001.2));
// max impulses:
ASSERT_EQ(5, m.calcImpulses(5.5, 5.0));
ASSERT_EQ(-5, m.calcImpulses(5.0, 5.49999));
// wrap detection:
ASSERT_EQ(4, m.calcImpulses(
0.2, 0.8)); // without wrap det. it would be negative (new value < old value)
// multiple wraps:
ASSERT_EQ(4, m.calcImpulses(0.2, 10.8));
ASSERT_EQ(-4, m.calcImpulses(10.8, 0.2));
// now with impulses <10 (i.e. no wrap detection)
m._impulses = 5;
ASSERT_EQ(5, m.calcImpulses(6.0, 5.0));
ASSERT_EQ(-5, m.calcImpulses(5.0, 6.0));
ASSERT_EQ(-3, m.calcImpulses(0.2, 0.8)); // with wrap it's +5
}
TEST(MeterOCR, calcImpulses) { MeterOCR_Test::test_calcImpulses(); }
void MeterOCR_Test::test_roundBasedOnSmallerDigits() {
struct json_object *jso = json_tokener_parse("\
{\"boundingboxes\": [{\"identifier\":\"1\", \"circle\":{\"cx\":20, \"cy\":20, \"cr\":10}}]\
}");
MeterOCR::RecognizerNeedle r(jso);
json_object_put(jso);
int conf = 100;
// no rounding
ASSERT_EQ(1, r.roundBasedOnSmallerDigits(1, 1.0, 0.0, conf));
EXPECT_EQ(100, conf);
// round up:
ASSERT_EQ(5, r.roundBasedOnSmallerDigits(4, 4.99, 0.0, conf));
EXPECT_EQ(90, conf);
// round down:
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(5, 5.00, 0.99, conf));
EXPECT_EQ(75, conf);
// round down:
conf += 15;
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(5, 5.4, 0.91, conf));
EXPECT_EQ(75, conf);
// round up wrap:
ASSERT_EQ(0, r.roundBasedOnSmallerDigits(9, 9.99, 0.0, conf));
EXPECT_EQ(65, conf);
// round down wrap:
ASSERT_EQ(9, r.roundBasedOnSmallerDigits(0, 0.00, 0.99, conf));
EXPECT_EQ(50, conf);
conf += 15;
ASSERT_EQ(9, r.roundBasedOnSmallerDigits(0, 0.4, 0.91, conf));
EXPECT_EQ(50, conf);
// stay:
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(4, 4.5, 0.5, conf));
EXPECT_EQ(50, conf);
ASSERT_EQ(0, r.roundBasedOnSmallerDigits(0, 0.4, 0.90, conf));
EXPECT_EQ(50, conf);
// stay:
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(4, 4.5, 0.1, conf));
EXPECT_EQ(50, conf);
// stay:
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(4, 4.5, 0.9, conf));
EXPECT_EQ(50, conf);
// stay:
ASSERT_EQ(4, r.roundBasedOnSmallerDigits(4, 4.9, 0.9, conf));
EXPECT_EQ(50, conf);
}
TEST(MeterOCR, roundBasedOnSmallerDigits) { MeterOCR_Test::test_roundBasedOnSmallerDigits(); }
TEST(MeterOCR, debouncing) {
ASSERT_EQ(8, debounce(9, 8.49));
ASSERT_EQ(9, debounce(9, 8.51));
ASSERT_EQ(9, debounce(9, 8.99));
ASSERT_EQ(9, debounce(9, 9.00));
ASSERT_EQ(9, debounce(9, 9.49));
ASSERT_EQ(9, debounce(9, 9.50));
ASSERT_EQ(9, debounce(9, 9.51));
ASSERT_EQ(9, debounce(9, 9.99));
// ASSERT_EQ(9, debounce(9, 10.0)); // should never happen
ASSERT_EQ(9, debounce(9, 0.49));
ASSERT_EQ(0, debounce(9, 0.51));
ASSERT_EQ(9, debounce(0, 9.49));
ASSERT_EQ(0, debounce(0, 9.51));
for (int i = 0; i < 9; ++i) {
ASSERT_EQ(i, debounce(i, (double)i + 0.5));
ASSERT_EQ(i, debounce(i, (double)i + 1.0));
ASSERT_EQ(i + 1, debounce(i, (double)i + 1.501));
ASSERT_EQ(i + 1, debounce(i + 1, (double)(i + 1) - 0.4999));
ASSERT_EQ(i, debounce(i + 1, (double)(i + 1) - 0.51));
}
};
TEST(MeterOCR,
basic2_needle_v4l) // TODO remove this test as it depends on a test machine with v4l2 dev
{
std::list<Option> options;
options.push_back(Option("v4l2_dev", (char *)"/dev/video0"));
options.push_back(
Option("rotate", -2.0)); // rotate by -2deg (counterclockwise)// 661, 539, 585/680
struct json_object *jso = json_tokener_parse("[{\"type\": \"needle\", \"boundingboxes\":[\
{\"identifier\": \"water cons\", \"scaler\":-1,\"digit\":false, \"circle\": {\"cx\": 689, \"cy\": 449, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-2,\"digit\":false, \"circle\": {\"cx\": 661, \"cy\": 539, \"cr\": 24}},\
{\"identifier\": \"water cons\", \"scaler\":-3,\"digit\":false, \"circle\": {\"cx\": 574, \"cy\": 576, \"cr\": 24}, \"confidence_id\": \"conf_circle\"},\
{\"identifier\": \"water cons\", \"scaler\":-4,\"digit\":true, \"circle\": {\"cx\": 488, \"cy\": 542, \"cr\": 24}}\
]}]"); // should detect 0,3767
options.push_back(Option("recognizer", jso));
json_object_put(jso);
jso = json_tokener_parse("\
{\"range\": 20, \"x\": 465, \"y\":395}\
");
options.push_back(Option("autofix", jso));
json_object_put(jso);
MeterOCR m(options);
if (SUCCESS ==
m.open()) { // we don't use assert_eq here as not all build machines have a camera!
// ASSERT_EQ(SUCCESS, m.open());
std::vector<Reading> rds;
rds.resize(2);
EXPECT_EQ(0, m.read(rds, 2));
EXPECT_EQ(0, m.read(rds, 2));
EXPECT_EQ(0, m.read(rds, 2));
EXPECT_EQ(0, m.read(rds, 2));
/*
double value = rds[0].value();
EXPECT_TRUE(std::abs(0.3767-value)<0.00001);
value = rds[1].value();
EXPECT_GT(value, 80.0); // expect conf. >80
*/
ASSERT_EQ(0, m.close());
}
}
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