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imageio.cpp
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393 lines (286 loc) · 10.6 KB
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/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* 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));
}