testsegmentation/TestMaskAnalyzer.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_TEST_TESTCV_TESTSEGMENTATION_TEST_MASK_ANALYZER_H
#define META_OCEAN_TEST_TESTCV_TESTSEGMENTATION_TEST_MASK_ANALYZER_H
 
#include "ocean/test/testcv/testsegmentation/TestCVSegmentation.h"
 
#include "ocean/base/RandomGenerator.h"
 
#include "ocean/cv/PixelPosition.h"
 
#include "ocean/cv/segmentation/MaskAnalyzer.h"
 
#include "ocean/test/TestSelector.h"
 
namespace Ocean
{
 
namespace Test
{
 
namespace TestCV
{
 
namespace TestSegmentation
{
 
/**
 * This class implements a mask analyzer test.
 * @ingroup testcvsegmentation
 */
class OCEAN_TEST_CV_SEGMENTATION_EXPORT TestMaskAnalyzer : public CV::Segmentation::MaskAnalyzer
{
    protected:
 
        /// Function pointer for distance transform the functions `CV::Segmentation::MaskAnalyzer::compute{C,L1,L2}DistanceTransform8Bit()`
        template <typename TDistanceType>
        using ComputeDistanceTransformFunctionPointer = bool (*) (const uint8_t*, const uint32_t, const uint32_t, TDistanceType*, uint32_t*, const uint8_t, const uint32_t, const uint32_t);
 
        /**
         * Definition of an unordered set holding bounding boxes.
         */
        using BoundingBoxSet = std::unordered_set<CV::PixelBoundingBox, CV::PixelBoundingBox>;
 
        /**
         * Definition of an unordered set holding pixel positions boxes.
         */
        using PixelPositionSet = std::unordered_set<CV::PixelPosition, CV::PixelPosition>;
 
    public:
 
        /**
         * Tests all mask analyzer functions.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object to distribute the computational load
         * @param selector The test selector
         * @return True, if succeeded
         */
        static bool test(const unsigned int width, const unsigned int height, const double testDuration, Worker& worker, const TestSelector& selector);
 
        /**
         * Tests the has mask neighbor-4 function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor4(const double testDuration);
 
        /**
         * Tests the has mask neighbor-4 center function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor4Center(const double testDuration);
 
        /**
         * Tests the has mask neighbor-5 function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor5(const double testDuration);
 
        /**
         * Tests the has mask neighbor-5 center function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor5Center(const double testDuration);
 
        /**
         * Tests the has mask neighbor-8 function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor8(const double testDuration);
 
        /**
         * Tests the has mask neighbor-8 center function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor8Center(const double testDuration);
 
        /**
         * Tests the has mask neighbor-9 function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor9(const double testDuration);
 
        /**
         * Tests the has mask neighbor-9 center function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testHasMaskNeighbor9Center(const double testDuration);
 
        /**
         * Tests the distance to border function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testDetermineDistancesToBorder(const double testDuration, Worker& worker);
 
        /**
         * Tests the distance to border function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param maximalDistance The maximal distance to be used, with range [1, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testDetermineDistancesToBorder(const unsigned int width, const unsigned int height, const double testDuration, const unsigned int maximalDistance, Worker& worker);
 
        /**
         * Tests the find border pixels in a 4-neighborhood function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testFindBorderPixels4(const unsigned int width, const unsigned int height, const double testDuration, Worker& worker);
 
        /**
         * Tests the find border pixels in an 8-neighborhood function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testFindBorderPixels8(const unsigned int width, const unsigned int height, const double testDuration, Worker& worker);
 
        /**
         * Tests the non-unique pixels in a 4-neighborhood function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testFindNonUniquePixels4(const unsigned int width, const unsigned int height, const double testDuration, Worker& worker);
 
        /**
         * Tests the non-unique pixels in an 8-neighborhood function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param worker The worker object
         * @return True, if succeeded
         */
        static bool testFindNonUniquePixels8(const unsigned int width, const unsigned int height, const double testDuration, Worker& worker);
 
        /**
         * Tests the outline pixels in a 4-neighborhood function.
         * @param width The width of the test frame in pixel, with range [32, infinity)
         * @param height The height of the test frame in pixel, with range [32, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testFindOutlinePixels4(const unsigned int width, const unsigned int height, const double testDuration);
 
        /**
         * Test the distance transformations that uses the chessboard distance
         * @param width The width of the source frame in pixel, with range [1, infinity)
         * @param height The height of the source frame in pixel, with range [1, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testComputeChessboardDistanceTransform8Bit(const uint32_t width, const uint32_t height, const double testDuration);
 
        /**
         * Test the distance transformations that uses the L1 distance
         * @param width The width of the source frame in pixel, with range [1, infinity)
         * @param height The height of the source frame in pixel, with range [1, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testComputeL1DistanceTransform8Bit(const uint32_t width, const uint32_t height, const double testDuration);
 
        /**
         * Test the distance transformations that uses the approximated L2 distance
         * @param width The width of the source frame in pixel, with range [1, infinity)
         * @param height The height of the source frame in pixel, with range [1, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testComputeL2DistanceTransform8Bit(const uint32_t width, const uint32_t height, const double testDuration);
 
        /**
         * Test the determine bounding boxes function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testDetectBoundingBoxes(const double testDuration);
 
        /**
         * Tests the count mask pixels functions.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testCountMaskPixels(const double testDuration);
 
        /**
         * Generates test data for the mask analyzer tests
         * This will generate a white mask frame with a black cross in the center, with 20 pixel width
         * @param randomGenerator The random generator to be used
         * @param width The width of the frame that will be generated, range: [1, infinity)
         * @param height The height of the frame that will be generated, range: [1, infinity)
         * @param maskValue The value of mask pixels, with range [0, 255]
         * @param nonMaskValue The value of non-mask pixels, with range [0, 255] without 'maskValue'
         * @return The generated test frame
         */
        static Frame generateTestMask(RandomGenerator& randomGenerator, const unsigned int width, const unsigned int height, const uint8_t maskValue = 0x00u, const uint8_t nonMaskValue = 0xFFu);
 
    protected:
 
        /**
         * Test for distance transform functions
         * @note The function that can be tested with this function must have an interface as defined by `TestDistanceTransform::ComputeDistanceTransformFunctionPointer`
         * @param width The width of the images that are used for the performance tests, range: [1, infinity)
         * @param height The height of the image that are used for the performance tests, range: [1, infinity)
         * @param computeDistanceTransformPtr A pointer to distance transformation function in `CV::DistanceTransform` that will be tested, must be valid
         * @param distanceVerticalHorizontal The cost of a vertical/horizontal step; must match the cost of the function that is tested, range: (0, infinity)
         * @param distanceDiagonal The cost of diagonal step; must match the cost of the function that is tested, range: (0, infinity)
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True if the validation was successful, otherwise false
         * @tparam TDistanceType The data type of the resulting distance transform, must be integral or floating-point
         */
        template <typename TDistanceType>
        static bool testComputeDistanceTransform8Bit(const uint32_t width, const uint32_t height, ComputeDistanceTransformFunctionPointer<TDistanceType> computeDistanceTransformPtr, const TDistanceType distanceVerticalHorizontal, const TDistanceType distanceDiagonal, const double testDuration);
 
        /**
         * Validates the distance to border function.
         * @param mask The original mask frame, must be valid
         * @param distance The corresponding distance frame to validate, must be valid
         * @param maximalDistance Maximal distance to be determined
         * @param assignFinal True, to assign each mask pixel a minimal distance after the final iteration
         * @return True, if succeeded
         */
        static bool validateDetermineDistancesToBorder(const Frame& mask, const Frame& distance, const unsigned int maximalDistance, const bool assignFinal);
 
        /**
         * Validates the find border pixels in a 4-neighborhood function.
         * @param mask The mask to verify, must be valid
         * @param boundingBox The bounding box which has been used, invalid to use the entire mask
         * @param borderPixels The border pixels to verify
         * @return True, if succeeded
         */
        static bool validateFindBorderPixels4(const Frame& mask, const CV::PixelBoundingBox& boundingBox, const CV::PixelPositions& borderPixels);
 
        /**
         * Validates the find border pixels in an 8-neighborhood function.
         * @param mask The mask to verify, must be valid
         * @param boundingBox The bounding box which has been used, invalid to use the entire mask
         * @param borderPixels The border pixels to verify
         * @return True, if succeeded
         */
        static bool validateFindBorderPixels8(const Frame& mask, const CV::PixelBoundingBox& boundingBox, const CV::PixelPositions& borderPixels);
 
        /**
         * Validates the find non-unique pixels in a 4-neighborhood function.
         * @param mask The mask to verify, must be valid
         * @param boundingBox The bounding box which has been used, invalid to use the entire mask
         * @param nonUniquePixels The on unique pixels to verify
         * @return True, if succeeded
         */
        static bool validateFindNonUniquePixels4(const Frame& mask, const CV::PixelBoundingBox& boundingBox, const CV::PixelPositions& nonUniquePixels);
 
        /**
         * Validates the find non-unique pixels in an 8-neighborhood function.
         * @param mask The mask to verify, must be valid
         * @param boundingBox The bounding box which has been used, invalid to use the entire mask
         * @param nonUniquePixels The on unique pixels to verify
         * @return True, if succeeded
         */
        static bool validateFindNonUniquePixels8(const Frame& mask, const CV::PixelBoundingBox& boundingBox, const CV::PixelPositions& nonUniquePixels);
 
        /**
         * Validates the find outline pixels in a 4-neighborhood function.
         * @param mask The mask to verify, must be valid
         * @param boundingBox The bounding box which has been used, invalid to use the entire mask
         * @param outlinePixels The outline pixels to verify
         * @param nonMaskValue The value of non-mask pixels, with range [0, 255] without 'maskValue'
         * @return True, if succeeded
         */
        static bool validateFindOutlinePixels4(const Frame& mask, const CV::PixelBoundingBox& boundingBox, const CV::PixelPositions& outlinePixels, const uint8_t nonMaskValue);
 
        /**
         * Validation function for the distance transform function
         * @param source A pointer to the source frame data, must be valid
         * @param width The width of the source frame, range: [1, infinity)
         * @param height The height of the source frame, range: [1, infinity)
         * @param validationTarget A pointer to the result of a distance transform that will be validated, must be valid and have the same size as the source frame
         * @param validationTargetStatus The return value of the distance transform function that will be validated
         * @param distanceVerticalHorizontal e cost of a vertical/horizontal step; must match the cost of the function that is tested, range: (0, infinity)
         * @param distanceDiagonal The cost of diagonal step; must match the cost of the function that is tested, range: (0, infinity)
         * @param referenceValue Distance values pixels will be computed to the closest pixel with this reference value, range: [0, 255] and must match that of the distance transform that is validated
         * @param sourcePaddingElements Optional number of padding elements of the source frame, range: [0, infinity)
         * @param validationTargetPaddingElements Optional number padding elements of the target frame, range: [0, infinity)
         * @return True if the validation was successful, otherwise false
         * @tparam TDistanceType The data type of the distance transform that will be validated, this must be an integral or floating-point type
         */
        template <typename TDistanceType>
        static bool validateComputeDistanceTransform8Bit(const uint8_t* source, const uint32_t width, const uint32_t height, const TDistanceType* validationTarget, const bool validationTargetStatus, const TDistanceType distanceVerticalHorizontal, const TDistanceType distanceDiagonal, const uint8_t referenceValue, const uint32_t sourcePaddingElements = 0u, const uint32_t validationTargetPaddingElements = 0u);
};
 
} // namespace TestSegmentation
 
} // namespace TestCV
 
} // namespace Test
 
} // namespace Ocean
 
#endif // META_OCEAN_TEST_TESTCV_TESTSEGMENTATION_TEST_MASK_ANALYZER_H