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///////////////////////////////////////////////////////////////////////
// File: osd_test.cc
// Description: OSD Tests for Tesseract.
// Author: ShreeDevi Kumar
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
///////////////////////////////////////////////////////////////////////
// based on https://gist.github.com/amitdo/7c7a522004dd79b398340c9595b377e1
// expects clones of tessdata, tessdata_fast and tessdata_best repos
//#include "log.h"
#include <allheaders.h>
#include <tesseract/baseapi.h>
#include <iostream>
#include <memory> // std::unique_ptr
#include <string>
#include "include_gunit.h"
#include "image.h"
namespace tesseract {
class TestClass : public testing::Test {
protected:
};
#ifndef DISABLED_LEGACY_ENGINE
static void OSDTester(int expected_deg, const char *imgname, const char *tessdatadir) {
// log.info() << tessdatadir << " for image: " << imgname << std::endl;
auto api = std::make_unique<tesseract::TessBaseAPI>();
ASSERT_FALSE(api->Init(tessdatadir, "osd")) << "Could not initialize tesseract.";
Image image = pixRead(imgname);
ASSERT_TRUE(image != nullptr) << "Failed to read test image.";
api->SetImage(image);
int orient_deg;
float orient_conf;
const char *script_name;
float script_conf;
bool detected =
api->DetectOrientationScript(&orient_deg, &orient_conf, &script_name, &script_conf);
ASSERT_FALSE(!detected) << "Failed to detect OSD.";
printf(
"************ Orientation in degrees: %d, Orientation confidence: %.2f\n"
" Script: %s, Script confidence: %.2f\n",
orient_deg, orient_conf, script_name, script_conf);
EXPECT_EQ(expected_deg, orient_deg);
api->End();
image.destroy();
}
#endif
class OSDTest : public TestClass,
public ::testing::WithParamInterface<std::tuple<int, const char *, const char *>> {
};
TEST_P(OSDTest, MatchOrientationDegrees) {
#ifdef DISABLED_LEGACY_ENGINE
// Skip test because TessBaseAPI::DetectOrientationScript is missing.
GTEST_SKIP();
#else
OSDTester(std::get<0>(GetParam()), std::get<1>(GetParam()), std::get<2>(GetParam()));
#endif
}
INSTANTIATE_TEST_SUITE_P(TessdataEngEuroHebrew, OSDTest,
::testing::Combine(::testing::Values(0),
::testing::Values(TESTING_DIR "/phototest.tif",
TESTING_DIR "/eurotext.tif",
TESTING_DIR "/hebrew.png"),
::testing::Values(TESSDATA_DIR)));
INSTANTIATE_TEST_SUITE_P(TessdataBestEngEuroHebrew, OSDTest,
::testing::Combine(::testing::Values(0),
::testing::Values(TESTING_DIR "/phototest.tif",
TESTING_DIR "/eurotext.tif",
TESTING_DIR "/hebrew.png"),
::testing::Values(TESSDATA_DIR "_best")));
INSTANTIATE_TEST_SUITE_P(TessdataFastEngEuroHebrew, OSDTest,
::testing::Combine(::testing::Values(0),
::testing::Values(TESTING_DIR "/phototest.tif",
TESTING_DIR "/eurotext.tif",
TESTING_DIR "/hebrew.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_SUITE_P(TessdataFastRotated90, OSDTest,
::testing::Combine(::testing::Values(90),
::testing::Values(TESTING_DIR
"/phototest-rotated-R.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_SUITE_P(TessdataFastRotated180, OSDTest,
::testing::Combine(::testing::Values(180),
::testing::Values(TESTING_DIR
"/phototest-rotated-180.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_SUITE_P(TessdataFastRotated270, OSDTest,
::testing::Combine(::testing::Values(270),
::testing::Values(TESTING_DIR
"/phototest-rotated-L.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_SUITE_P(TessdataFastDevaRotated270, OSDTest,
::testing::Combine(::testing::Values(270),
::testing::Values(TESTING_DIR
"/devatest-rotated-270.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_SUITE_P(TessdataFastDeva, OSDTest,
::testing::Combine(::testing::Values(0),
::testing::Values(TESTING_DIR "/devatest.png"),
::testing::Values(TESSDATA_DIR "_fast")));
} // namespace tesseract
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