arrayfire/test/imageio.cpp at master · arrayfire/arrayfire · GitHub

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/*******************************************************

* This file is distributed under 3-clause BSD license.

* The complete license agreement can be obtained at:

* http://arrayfire.com/licenses/BSD-3-Clause

********************************************************/

#include <arrayfire.h>

#include <gtest/gtest.h>

#include <testHelpers.hpp>

#include <af/dim4.hpp>

#include <af/traits.hpp>

#include <iostream>

#include <string>

#include <vector>

using af::array;

using af::cdouble;

using af::cfloat;

using af::dim4;

using std::endl;

using std::string;

using std::vector;

template<typename T>

class ImageIO : public ::testing::Test {

public:

virtual void SetUp() {}

};

typedef ::testing::Types<float> TestTypes;

// register the type list

TYPED_TEST_SUITE(ImageIO, TestTypes);

void loadImageTest(string pTestFile, string pImageFile, const bool isColor) {

IMAGEIO_ENABLED_CHECK();

vector<dim4> numDims;

vector<vector<float>> in;

vector<vector<float>> tests;

readTests<float, float, float>(pTestFile, numDims, in, tests);

dim4 dims = numDims[0];

af_array imgArray = 0;

ASSERT_SUCCESS(af_load_image(&imgArray, pImageFile.c_str(), isColor));

// Get result

float* imgData = new float[dims.elements()];

ASSERT_SUCCESS(af_get_data_ptr((void*)imgData, imgArray));

bool isJPEG = false;

if (pImageFile.find(".jpg") != string::npos) { isJPEG = true; }

// Compare result

size_t nElems = in[0].size();

for (size_t elIter = 0; elIter < nElems; ++elIter) {

if (isJPEG) // Allow +- 1 because of compression when testing JPG

ASSERT_NEAR(in[0][elIter], imgData[elIter], 1)

<< "at: " << elIter << endl;

else

ASSERT_EQ(in[0][elIter], imgData[elIter])

<< "at: " << elIter << endl;

}

// Delete

delete[] imgData;

if (imgArray != 0) af_release_array(imgArray);

}

TYPED_TEST(ImageIO, ColorSmall) {

loadImageTest(string(TEST_DIR "/imageio/color_small.test"),

string(TEST_DIR "/imageio/color_small.png"), true);

}

TYPED_TEST(ImageIO, GraySmall) {

loadImageTest(string(TEST_DIR "/imageio/gray_small.test"),

string(TEST_DIR "/imageio/gray_small.jpg"), false);

}

TYPED_TEST(ImageIO, GraySeq) {

loadImageTest(string(TEST_DIR "/imageio/gray_seq.test"),

string(TEST_DIR "/imageio/gray_seq.png"), false);

}

TYPED_TEST(ImageIO, ColorSeq) {

loadImageTest(string(TEST_DIR "/imageio/color_seq.test"),

string(TEST_DIR "/imageio/color_seq.png"), true);

}

void loadimageArgsTest(string pImageFile, const bool isColor, af_err err) {

IMAGEIO_ENABLED_CHECK();

af_array imgArray = 0;

ASSERT_EQ(err, af_load_image(&imgArray, pImageFile.c_str(), isColor));

if (imgArray != 0) af_release_array(imgArray);

}

TYPED_TEST(ImageIO, InvalidArgsMissingFile) {

loadimageArgsTest(string(TEST_DIR "/imageio/nofile.png"), false,

AF_ERR_RUNTIME);

}

TYPED_TEST(ImageIO, InvalidArgsWrongExt) {

loadimageArgsTest(string(TEST_DIR "/imageio/image.wrongext"), true,

AF_ERR_NOT_SUPPORTED);

}

////////////////////////////////// CPP //////////////////////////////////////

using af::anyTrue;

using af::deleteImageMem;

using af::loadImage;

using af::loadImageMem;

using af::saveImageMem;

using af::span;

TEST(ImageIO, CPP) {

IMAGEIO_ENABLED_CHECK();

vector<dim4> numDims;

vector<vector<float>> in;

vector<vector<float>> tests;

readTests<float, float, float>(string(TEST_DIR "/imageio/color_small.test"),

numDims, in, tests);

dim4 dims = numDims[0];

array img =

loadImage(string(TEST_DIR "/imageio/color_small.png").c_str(), true);

// Get result

float* imgData = new float[dims.elements()];

img.host((void*)imgData);

// Compare result

size_t nElems = in[0].size();

for (size_t elIter = 0; elIter < nElems; ++elIter) {

ASSERT_EQ(in[0][elIter], imgData[elIter]) << "at: " << elIter << endl;

}

// Delete

delete[] imgData;

}

TEST(ImageIO, SavePNGCPP) {

IMAGEIO_ENABLED_CHECK();

array input(10, 10, 3, f32);

input(span, span, span) = 0;

input(0, 0, 0) = 255;

input(0, 9, 1) = 255;

input(9, 0, 2) = 255;

input(9, 9, span) = 255;

std::string testname = getTestName() + "_" + getBackendName(true);

std::string imagename = "SaveCPP_" + testname + ".png";

saveImage(imagename.c_str(), input);

array out = loadImage(imagename.c_str(), true);

ASSERT_FALSE(anyTrue<bool>(out - input));

}

TEST(ImageIO, SaveBMPCPP) {

IMAGEIO_ENABLED_CHECK();

array input(10, 10, 3, f32);

input(span, span, span) = 0;

input(0, 0, 0) = 255;

input(0, 9, 1) = 255;

input(9, 0, 2) = 255;

input(9, 9, span) = 255;

std::string testname = getTestName() + "_" + getBackendName(true);

std::string imagename = "SaveCPP_" + testname + ".bmp";

saveImage(imagename.c_str(), input);

array out = loadImage(imagename.c_str(), true);

ASSERT_FALSE(anyTrue<bool>(out - input));

}

TEST(ImageMem, SaveMemPNG) {

IMAGEIO_ENABLED_CHECK();

array img =

loadImage(string(TEST_DIR "/imageio/color_seq.png").c_str(), true);

void* savedMem = saveImageMem(img, AF_FIF_PNG);

array loadMem = loadImageMem(savedMem);

ASSERT_FALSE(anyTrue<bool>(img - loadMem));

deleteImageMem(savedMem);

}

TEST(ImageMem, SaveMemJPG1) {

IMAGEIO_ENABLED_CHECK();

array img =

loadImage(string(TEST_DIR "/imageio/color_seq.png").c_str(), false);

saveImage("color_seq1.jpg", img);

void* savedMem = saveImageMem(img, AF_FIF_JPEG);

array loadMem = loadImageMem(savedMem);

array imgJPG = loadImage("color_seq1.jpg", false);

ASSERT_FALSE(anyTrue<bool>(imgJPG - loadMem));

deleteImageMem(savedMem);

}

TEST(ImageMem, SaveMemJPG3) {

IMAGEIO_ENABLED_CHECK();

array img =

loadImage(string(TEST_DIR "/imageio/color_seq.png").c_str(), true);

saveImage("color_seq3.jpg", img);

void* savedMem = saveImageMem(img, AF_FIF_JPEG);

array loadMem = loadImageMem(savedMem);

array imgJPG = loadImage("color_seq3.jpg", true);

ASSERT_FALSE(anyTrue<bool>(imgJPG - loadMem));

deleteImageMem(savedMem);

}

TEST(ImageMem, SaveMemBMP) {

IMAGEIO_ENABLED_CHECK();

array img =

loadImage(string(TEST_DIR "/imageio/color_rand.png").c_str(), true);

void* savedMem = saveImageMem(img, AF_FIF_BMP);

array loadMem = loadImageMem(savedMem);

ASSERT_FALSE(anyTrue<bool>(img - loadMem));

deleteImageMem(savedMem);

}

TEST(ImageIO, LoadImage16CPP) {

IMAGEIO_ENABLED_CHECK();

vector<dim4> numDims;

vector<vector<float>> in;

vector<vector<float>> tests;

readTests<float, float, float>(

string(TEST_DIR "/imageio/color_seq_16.test"), numDims, in, tests);

dim4 dims = numDims[0];

array img =

loadImage(string(TEST_DIR "/imageio/color_seq_16.png").c_str(), true);

ASSERT_EQ(img.type(), f32); // loadImage should always return float

// Get result

float* imgData = new float[dims.elements()];

img.host((void*)imgData);

// Compare result

size_t nElems = in[0].size();

for (size_t elIter = 0; elIter < nElems; ++elIter) {

ASSERT_EQ(in[0][elIter], imgData[elIter]) << "at: " << elIter << endl;

}

// Delete

delete[] imgData;

}

TEST(ImageIO, SaveImage16CPP) {

IMAGEIO_ENABLED_CHECK();

dim4 dims(16, 24, 3);

array input = randu(dims, u16);

array input_255 = floor(input.as(f32) / 257);

std::string testname = getTestName() + "_" + getBackendName(true);

std::string imagename = "saveImage16CPP_" + testname + ".png";

saveImage(imagename.c_str(), input);

array img = loadImage(imagename.c_str(), true);

ASSERT_EQ(img.type(), f32); // loadImage should always return float

ASSERT_IMAGES_NEAR(input_255, img, 0.001);

}

////////////////////////////////////////////////////////////////////////////////

// Image IO Native Tests

////////////////////////////////////////////////////////////////////////////////

using af::dtype_traits;

using af::loadImageNative;

using af::saveImageNative;

template<typename T>

void loadImageNativeCPPTest(string pTestFile, string pImageFile) {

IMAGEIO_ENABLED_CHECK();

vector<dim4> numDims;

vector<vector<float>> in;

vector<vector<float>> tests;

readTests<float, float, float>(pTestFile, numDims, in, tests);

dim4 dims = numDims[0];

array img = loadImageNative(pImageFile.c_str());

ASSERT_EQ(img.type(), (af_dtype)dtype_traits<T>::af_type);

// Get result

T* imgData = new T[dims.elements()];

img.host((void*)imgData);

// Compare result

size_t nElems = in[0].size();

for (size_t elIter = 0; elIter < nElems; ++elIter) {

ASSERT_EQ(in[0][elIter], imgData[elIter]) << "at: " << elIter << endl;

}

// Delete

delete[] imgData;

}

TEST(ImageIONative, LoadImageNative8CPP) {

loadImageNativeCPPTest<uchar>(string(TEST_DIR "/imageio/color_small.test"),

string(TEST_DIR "/imageio/color_small.png"));

}

TEST(ImageIONative, LoadImageNative16SmallCPP) {

loadImageNativeCPPTest<ushort>(

string(TEST_DIR "/imageio/color_small_16.test"),

string(TEST_DIR "/imageio/color_small_16.png"));

}

TEST(ImageIONative, LoadImageNative16ColorCPP) {

loadImageNativeCPPTest<ushort>(

string(TEST_DIR "/imageio/color_seq_16.test"),

string(TEST_DIR "/imageio/color_seq_16.png"));

}

TEST(ImageIONative, LoadImageNative16GrayCPP) {

loadImageNativeCPPTest<ushort>(string(TEST_DIR "/imageio/gray_seq_16.test"),

string(TEST_DIR "/imageio/gray_seq_16.png"));

}

template<typename T>

void saveLoadImageNativeCPPTest(dim4 dims) {

IMAGEIO_ENABLED_CHECK();

array input = randu(dims, (af_dtype)dtype_traits<T>::af_type);

std::string imagename = getTestName() + "_" + getBackendName(true) + ".png";

saveImageNative(imagename.c_str(), input);

array loaded = loadImageNative(imagename.c_str());

ASSERT_EQ(loaded.type(), input.type());

ASSERT_FALSE(anyTrue<bool>(input - loaded));

}

TEST(ImageIONative, SaveLoadImageNative8CPP) {

saveLoadImageNativeCPPTest<uchar>(dim4(480, 720, 3, 1));

}

TEST(ImageIONative, SaveLoadImageNative16SmallCPP) {

saveLoadImageNativeCPPTest<ushort>(dim4(8, 12, 3, 1));

}

TEST(ImageIONative, SaveLoadImageNative16ColorCPP) {

saveLoadImageNativeCPPTest<ushort>(dim4(480, 720, 3, 1));

}

TEST(ImageIONative, SaveLoadImageNative16GrayCPP) {

saveLoadImageNativeCPPTest<ushort>(dim4(24, 32, 1, 1));

}

arrayfire/test/imageio.cpp at master · arrayfire/arrayfire · GitHub

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