tesseract/unittest/osd_test.cc
2018-06-19 10:23:48 +05:30

118 lines
5.3 KiB
C++

///////////////////////////////////////////////////////////////////////
// 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 "include_gunit.h"
#include "baseapi.h"
#include "leptonica/allheaders.h"
#include <iostream>
#include <string>
namespace {
class TestClass : public testing::Test {
protected:
};
void OSDTester( int expected_deg, const char* imgname, const char* tessdatadir) {
//log.info() << tessdatadir << " for image: " << imgname << std::endl;
tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();
ASSERT_FALSE(api->Init(tessdatadir, "osd")) << "Could not initialize tesseract.";
Pix *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();
pixDestroy(&image);
}
class OSDTest : public TestClass ,
public ::testing::WithParamInterface<std::tuple<int, const char*, const char*>> {};
TEST_P(OSDTest, MatchOrientationDegrees) {
OSDTester(std::get<0>(GetParam()), std::get<1>(GetParam()), std::get<2>(GetParam()));
}
INSTANTIATE_TEST_CASE_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_CASE_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_CASE_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_CASE_P( TessdataFastRotated90, OSDTest,
::testing::Combine(
::testing::Values(90),
::testing::Values(TESTING_DIR "/phototest-rotated-R.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_CASE_P( TessdataFastRotated180, OSDTest,
::testing::Combine(
::testing::Values(180),
::testing::Values(TESTING_DIR "/phototest-rotated-180.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_CASE_P( TessdataFastRotated270, OSDTest,
::testing::Combine(
::testing::Values(270),
::testing::Values(TESTING_DIR "/phototest-rotated-L.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_CASE_P( TessdataFastDevaRotated270, OSDTest,
::testing::Combine(
::testing::Values(270),
::testing::Values(TESTING_DIR "/devatest-rotated-270.png"),
::testing::Values(TESSDATA_DIR "_fast")));
INSTANTIATE_TEST_CASE_P( TessdataFastDeva, OSDTest,
::testing::Combine(
::testing::Values(0),
::testing::Values(TESTING_DIR "/devatest.png"),
::testing::Values(TESSDATA_DIR "_fast")));
} // namespace