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Added tests for RGB to YUV420p color conversion

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This commit is contained in:
Daniil Osokin 2013-02-24 23:52:06 +04:00
parent 7255ede3af
commit d8f538d67b
2 changed files with 290 additions and 34 deletions
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32
modules/imgproc/perf/perf_cvt_color.cpp
View File

@ -115,6 +115,9 @@ CV_ENUM(CvtMode2, CV_YUV2BGR_NV12, CV_YUV2BGRA_NV12, CV_YUV2RGB_NV12, CV_YUV2RGB
COLOR_YUV2GRAY_420, CV_YUV2RGB_UYVY, CV_YUV2BGR_UYVY, CV_YUV2RGBA_UYVY, CV_YUV2BGRA_UYVY, CV_YUV2RGB_YUY2, CV_YUV2BGR_YUY2, CV_YUV2RGB_YVYU,
CV_YUV2BGR_YVYU, CV_YUV2RGBA_YUY2, CV_YUV2BGRA_YUY2, CV_YUV2RGBA_YVYU, CV_YUV2BGRA_YVYU)
CV_ENUM(CvtMode3, CV_RGB2YUV_IYUV, CV_BGR2YUV_IYUV, CV_RGBA2YUV_IYUV, CV_BGRA2YUV_IYUV,
CV_RGB2YUV_YV12, CV_BGR2YUV_YV12, CV_RGBA2YUV_YV12, CV_BGRA2YUV_YV12)
struct ChPair
{
ChPair(int _scn, int _dcn): scn(_scn), dcn(_dcn) {}
@ -162,6 +165,8 @@ ChPair getConversionInfo(int cvtMode)
case CV_BGR5652BGRA: case CV_BGR5652RGBA:
return ChPair(2,4);
case CV_BGR2GRAY: case CV_RGB2GRAY:
case CV_RGB2YUV_IYUV: case CV_RGB2YUV_YV12:
case CV_BGR2YUV_IYUV: case CV_BGR2YUV_YV12:
return ChPair(3,1);
case CV_BGR2BGR555: case CV_BGR2BGR565:
case CV_RGB2BGR555: case CV_RGB2BGR565:
@ -204,6 +209,8 @@ ChPair getConversionInfo(int cvtMode)
case CX_YUV2BGRA: case CX_YUV2RGBA:
return ChPair(3,4);
case CV_BGRA2GRAY: case CV_RGBA2GRAY:
case CV_RGBA2YUV_IYUV: case CV_RGBA2YUV_YV12:
case CV_BGRA2YUV_IYUV: case CV_BGRA2YUV_YV12:
return ChPair(4,1);
case CV_BGRA2BGR555: case CV_BGRA2BGR565:
case CV_RGBA2BGR555: case CV_RGBA2BGR565:
@ -306,3 +313,28 @@ PERF_TEST_P(Size_CvtMode2, cvtColorYUV420,
SANITY_CHECK(dst, 1);
}
typedef std::tr1::tuple<Size, CvtMode3> Size_CvtMode3_t;
typedef perf::TestBaseWithParam<Size_CvtMode3_t> Size_CvtMode3;
PERF_TEST_P(Size_CvtMode3, cvtColorRGB2YUV420p,
testing::Combine(
testing::Values(szVGA, sz720p, sz1080p, Size(130, 60)),
testing::ValuesIn(CvtMode3::all())
)
)
{
Size sz = get<0>(GetParam());
int mode = get<1>(GetParam());
ChPair ch = getConversionInfo(mode);
Mat src(sz, CV_8UC(ch.scn));
Mat dst(sz.height + sz.height / 2, sz.width, CV_8UC(ch.dcn));
declare.time(100);
declare.in(src, WARMUP_RNG).out(dst);
TEST_CYCLE() cvtColor(src, dst, mode, ch.dcn);
SANITY_CHECK(dst, 1);
}

292
modules/imgproc/test/test_cvtyuv.cpp
View File

@ -30,6 +30,16 @@ public:
static YUVreader* getReader(int code);
};
class RGBreader
{
public:
virtual ~RGBreader() {}
virtual RGB read(const Mat& rgb, int row, int col) = 0;
virtual int channels() = 0;
static RGBreader* getReader(int code);
};
class RGBwriter
{
public:
@ -56,6 +66,21 @@ public:
static GRAYwriter* getWriter(int code);
};
class YUVwriter
{
public:
virtual ~YUVwriter() {}
virtual void write(Mat& yuv, int row, int col, const YUV& val) = 0;
virtual int channels() = 0;
virtual Size size(Size imgSize) = 0;
virtual bool requiresEvenHeight() { return true; }
virtual bool requiresEvenWidth() { return true; }
static YUVwriter* getWriter(int code);
};
class RGB888Writer : public RGBwriter
{
void write(Mat& rgb, int row, int col, const RGB& val)
@ -99,6 +124,42 @@ class BGRA8888Writer : public RGBwriter
int channels() { return 4; }
};
class YUV420pWriter: public YUVwriter
{
int channels() { return 1; }
Size size(Size imgSize) { return Size(imgSize.width, imgSize.height + imgSize.height/2); }
};
class YV12Writer: public YUV420pWriter
{
void write(Mat& yuv, int row, int col, const YUV& val)
{
int h = yuv.rows * 2 / 3;
yuv.ptr<uchar>(row)[col] = val[0];
if( row % 2 == 0 && col % 2 == 0 )
{
yuv.ptr<uchar>(h + row/4)[col/2 + ((row/2) % 2) * (yuv.cols/2)] = val[2];
yuv.ptr<uchar>(h + (row/2 + h/2)/2)[col/2 + ((row/2 + h/2) % 2) * (yuv.cols/2)] = val[1];
}
}
};
class I420Writer: public YUV420pWriter
{
void write(Mat& yuv, int row, int col, const YUV& val)
{
int h = yuv.rows * 2 / 3;
yuv.ptr<uchar>(row)[col] = val[0];
if( row % 2 == 0 && col % 2 == 0 )
{
yuv.ptr<uchar>(h + row/4)[col/2 + ((row/2) % 2) * (yuv.cols/2)] = val[1];
yuv.ptr<uchar>(h + (row/2 + h/2)/2)[col/2 + ((row/2 + h/2) % 2) * (yuv.cols/2)] = val[2];
}
}
};
class YUV420Reader: public YUVreader
{
int channels() { return 1; }
@ -212,6 +273,49 @@ class YUV888Reader : public YUVreader
bool requiresEvenWidth() { return false; }
};
class RGB888Reader : public RGBreader
{
RGB read(const Mat& rgb, int row, int col)
{
return rgb.at<RGB>(row, col);
}
int channels() { return 3; }
};
class BGR888Reader : public RGBreader
{
RGB read(const Mat& rgb, int row, int col)
{
RGB tmp = rgb.at<RGB>(row, col);
return RGB(tmp[2], tmp[1], tmp[0]);
}
int channels() { return 3; }
};
class RGBA8888Reader : public RGBreader
{
RGB read(const Mat& rgb, int row, int col)
{
Vec4b rgba = rgb.at<Vec4b>(row, col);
return RGB(rgba[0], rgba[1], rgba[2]);
}
int channels() { return 4; }
};
class BGRA8888Reader : public RGBreader
{
RGB read(const Mat& rgb, int row, int col)
{
Vec4b rgba = rgb.at<Vec4b>(row, col);
return RGB(rgba[2], rgba[1], rgba[0]);
}
int channels() { return 4; }
};
class YUV2RGB_Converter
{
public:
@ -237,6 +341,23 @@ public:
}
};
class RGB2YUV_Converter
{
public:
YUV convert(RGB rgb)
{
int r = rgb[0];
int g = rgb[1];
int b = rgb[2];
uchar y = saturate_cast<uchar>((int)( 0.257f*r + 0.504f*g + 0.098f*b + 0.5f) + 16);
uchar u = saturate_cast<uchar>((int)(-0.148f*r - 0.291f*g + 0.439f*b + 0.5f) + 128);
uchar v = saturate_cast<uchar>((int)( 0.439f*r - 0.368f*g - 0.071f*b + 0.5f) + 128);
return YUV(y, u, v);
}
};
YUVreader* YUVreader::getReader(int code)
{
switch(code)
@ -295,6 +416,27 @@ YUVreader* YUVreader::getReader(int code)
}
}
RGBreader* RGBreader::getReader(int code)
{
switch(code)
{
case CV_RGB2YUV_YV12:
case CV_RGB2YUV_I420:
return new RGB888Reader();
case CV_BGR2YUV_YV12:
case CV_BGR2YUV_I420:
return new BGR888Reader();
case CV_RGBA2YUV_I420:
case CV_RGBA2YUV_YV12:
return new RGBA8888Reader();
case CV_BGRA2YUV_YV12:
case CV_BGRA2YUV_I420:
return new BGRA8888Reader();
default:
return 0;
};
}
RGBwriter* RGBwriter::getWriter(int code)
{
switch(code)
@ -355,6 +497,25 @@ GRAYwriter* GRAYwriter::getWriter(int code)
}
}
YUVwriter* YUVwriter::getWriter(int code)
{
switch(code)
{
case CV_RGB2YUV_YV12:
case CV_BGR2YUV_YV12:
case CV_RGBA2YUV_YV12:
case CV_BGRA2YUV_YV12:
return new YV12Writer();
case CV_RGB2YUV_I420:
case CV_BGR2YUV_I420:
case CV_RGBA2YUV_I420:
case CV_BGRA2YUV_I420:
return new I420Writer();
default:
return 0;
};
}
template<class convertor>
void referenceYUV2RGB(const Mat& yuv, Mat& rgb, YUVreader* yuvReader, RGBwriter* rgbWriter)
{
@ -375,6 +536,64 @@ void referenceYUV2GRAY(const Mat& yuv, Mat& rgb, YUVreader* yuvReader, GRAYwrite
grayWriter->write(rgb, row, col, cvt.convert(yuvReader->read(yuv, row, col)));
}
template<class convertor>
void referenceRGB2YUV(const Mat& rgb, Mat& yuv, RGBreader* rgbReader, YUVwriter* yuvWriter)
{
convertor cvt;
for(int row = 0; row < rgb.rows; ++row)
for(int col = 0; col < rgb.cols; ++col)
yuvWriter->write(yuv, row, col, cvt.convert(rgbReader->read(rgb, row, col)));
}
struct ConversionYUV
{
ConversionYUV( const int code )
{
yuvReader_ = YUVreader :: getReader(code);
yuvWriter_ = YUVwriter :: getWriter(code);
rgbReader_ = RGBreader :: getReader(code);
rgbWriter_ = RGBwriter :: getWriter(code);
grayWriter_ = GRAYwriter:: getWriter(code);
}
int getDcn()
{
return (rgbWriter_ != 0) ? rgbWriter_->channels() : ((grayWriter_ != 0) ? grayWriter_->channels() : yuvWriter_->channels());
}
int getScn()
{
return (yuvReader_ != 0) ? yuvReader_->channels() : rgbReader_->channels();
}
Size getSrcSize( const Size& imgSize )
{
return (yuvReader_ != 0) ? yuvReader_->size(imgSize) : imgSize;
}
Size getDstSize( const Size& imgSize )
{
return (yuvWriter_ != 0) ? yuvWriter_->size(imgSize) : imgSize;
}
bool requiresEvenHeight()
{
return (yuvReader_ != 0) ? yuvReader_->requiresEvenHeight() : ((yuvWriter_ != 0) ? yuvWriter_->requiresEvenHeight() : false);
}
bool requiresEvenWidth()
{
return (yuvReader_ != 0) ? yuvReader_->requiresEvenWidth() : ((yuvWriter_ != 0) ? yuvWriter_->requiresEvenWidth() : false);
}
YUVreader* yuvReader_;
YUVwriter* yuvWriter_;
RGBreader* rgbReader_;
RGBwriter* rgbWriter_;
GRAYwriter* grayWriter_;
};
CV_ENUM(YUVCVTS, CV_YUV2RGB_NV12, CV_YUV2BGR_NV12, CV_YUV2RGB_NV21, CV_YUV2BGR_NV21,
CV_YUV2RGBA_NV12, CV_YUV2BGRA_NV12, CV_YUV2RGBA_NV21, CV_YUV2BGRA_NV21,
CV_YUV2RGB_YV12, CV_YUV2BGR_YV12, CV_YUV2RGB_IYUV, CV_YUV2BGR_IYUV,
@ -383,7 +602,8 @@ CV_ENUM(YUVCVTS, CV_YUV2RGB_NV12, CV_YUV2BGR_NV12, CV_YUV2RGB_NV21, CV_YUV2BGR_N
CV_YUV2RGB_YUY2, CV_YUV2BGR_YUY2, CV_YUV2RGB_YVYU, CV_YUV2BGR_YVYU,
CV_YUV2RGBA_YUY2, CV_YUV2BGRA_YUY2, CV_YUV2RGBA_YVYU, CV_YUV2BGRA_YVYU,
CV_YUV2GRAY_420, CV_YUV2GRAY_UYVY, CV_YUV2GRAY_YUY2,
CV_YUV2BGR, CV_YUV2RGB);
CV_YUV2BGR, CV_YUV2RGB, CV_RGB2YUV_YV12, CV_BGR2YUV_YV12, CV_RGBA2YUV_YV12,
CV_BGRA2YUV_YV12, CV_RGB2YUV_I420, CV_BGR2YUV_I420, CV_RGBA2YUV_I420, CV_BGRA2YUV_I420);
typedef ::testing::TestWithParam<YUVCVTS> Imgproc_ColorYUV;
@ -392,31 +612,32 @@ TEST_P(Imgproc_ColorYUV, accuracy)
int code = GetParam();
RNG& random = theRNG();
YUVreader* yuvReader = YUVreader::getReader(code);
RGBwriter* rgbWriter = RGBwriter::getWriter(code);
GRAYwriter* grayWriter = GRAYwriter::getWriter(code);
int dcn = (rgbWriter == 0) ? grayWriter->channels() : rgbWriter->channels();
ConversionYUV cvt(code);
const int scn = cvt.getScn();
const int dcn = cvt.getDcn();
for(int iter = 0; iter < 30; ++iter)
{
Size sz(random.uniform(1, 641), random.uniform(1, 481));
if(yuvReader->requiresEvenWidth()) sz.width += sz.width % 2;
if(yuvReader->requiresEvenHeight()) sz.height += sz.height % 2;
if(cvt.requiresEvenWidth()) sz.width += sz.width % 2;
if(cvt.requiresEvenHeight()) sz.height += sz.height % 2;
Size ysz = yuvReader->size(sz);
Mat src = Mat(ysz.height, ysz.width * yuvReader->channels(), CV_8UC1).reshape(yuvReader->channels());
Size srcSize = cvt.getSrcSize(sz);
Mat src = Mat(srcSize.height, srcSize.width * scn, CV_8UC1).reshape(scn);
Mat dst = Mat(sz.height, sz.width * dcn, CV_8UC1).reshape(dcn);
Mat gold(sz, CV_8UC(dcn));
Size dstSize = cvt.getDstSize(sz);
Mat dst = Mat(dstSize.height, dstSize.width * dcn, CV_8UC1).reshape(dcn);
Mat gold(dstSize, CV_8UC(dcn));
random.fill(src, RNG::UNIFORM, 0, 256);
if(rgbWriter)
referenceYUV2RGB<YUV2RGB_Converter>(src, gold, yuvReader, rgbWriter);
else
referenceYUV2GRAY<YUV2GRAY_Converter>(src, gold, yuvReader, grayWriter);
if(cvt.rgbWriter_)
referenceYUV2RGB<YUV2RGB_Converter> (src, gold, cvt.yuvReader_, cvt.rgbWriter_);
else if(cvt.grayWriter_)
referenceYUV2GRAY<YUV2GRAY_Converter>(src, gold, cvt.yuvReader_, cvt.grayWriter_);
else if(cvt.yuvWriter_)
referenceRGB2YUV<RGB2YUV_Converter> (src, gold, cvt.rgbReader_, cvt.yuvWriter_);
cv::cvtColor(src, dst, code, -1);
@ -429,40 +650,41 @@ TEST_P(Imgproc_ColorYUV, roi_accuracy)
int code = GetParam();
RNG& random = theRNG();
YUVreader* yuvReader = YUVreader::getReader(code);
RGBwriter* rgbWriter = RGBwriter::getWriter(code);
GRAYwriter* grayWriter = GRAYwriter::getWriter(code);
int dcn = (rgbWriter == 0) ? grayWriter->channels() : rgbWriter->channels();
ConversionYUV cvt(code);
const int scn = cvt.getScn();
const int dcn = cvt.getDcn();
for(int iter = 0; iter < 30; ++iter)
{
Size sz(random.uniform(1, 641), random.uniform(1, 481));
if(yuvReader->requiresEvenWidth()) sz.width += sz.width % 2;
if(yuvReader->requiresEvenHeight()) sz.height += sz.height % 2;
if(cvt.requiresEvenWidth()) sz.width += sz.width % 2;
if(cvt.requiresEvenHeight()) sz.height += sz.height % 2;
int roi_offset_top = random.uniform(0, 6);
int roi_offset_bottom = random.uniform(0, 6);
int roi_offset_left = random.uniform(0, 6);
int roi_offset_right = random.uniform(0, 6);
Size ysz = yuvReader->size(sz);
Size srcSize = cvt.getSrcSize(sz);
Mat src_full(srcSize.height + roi_offset_top + roi_offset_bottom, srcSize.width + roi_offset_left + roi_offset_right, CV_8UC(scn));
Mat src_full(ysz.height + roi_offset_top + roi_offset_bottom, ysz.width + roi_offset_left + roi_offset_right, CV_8UC(yuvReader->channels()));
Mat dst_full(sz.height + roi_offset_left + roi_offset_right, sz.width + roi_offset_top + roi_offset_bottom, CV_8UC(dcn), Scalar::all(0));
Size dstSize = cvt.getDstSize(sz);
Mat dst_full(dstSize.height + roi_offset_left + roi_offset_right, dstSize.width + roi_offset_top + roi_offset_bottom, CV_8UC(dcn), Scalar::all(0));
Mat gold_full(dst_full.size(), CV_8UC(dcn), Scalar::all(0));
random.fill(src_full, RNG::UNIFORM, 0, 256);
Mat src = src_full(Range(roi_offset_top, roi_offset_top + ysz.height), Range(roi_offset_left, roi_offset_left + ysz.width));
Mat dst = dst_full(Range(roi_offset_left, roi_offset_left + sz.height), Range(roi_offset_top, roi_offset_top + sz.width));
Mat gold = gold_full(Range(roi_offset_left, roi_offset_left + sz.height), Range(roi_offset_top, roi_offset_top + sz.width));
Mat src = src_full(Range(roi_offset_top, roi_offset_top + srcSize.height), Range(roi_offset_left, roi_offset_left + srcSize.width));
Mat dst = dst_full(Range(roi_offset_left, roi_offset_left + dstSize.height), Range(roi_offset_top, roi_offset_top + dstSize.width));
Mat gold = gold_full(Range(roi_offset_left, roi_offset_left + dstSize.height), Range(roi_offset_top, roi_offset_top + dstSize.width));
if(rgbWriter)
referenceYUV2RGB<YUV2RGB_Converter>(src, gold, yuvReader, rgbWriter);
else
referenceYUV2GRAY<YUV2GRAY_Converter>(src, gold, yuvReader, grayWriter);
if(cvt.rgbWriter_)
referenceYUV2RGB<YUV2RGB_Converter> (src, gold, cvt.yuvReader_, cvt.rgbWriter_);
else if(cvt.grayWriter_)
referenceYUV2GRAY<YUV2GRAY_Converter>(src, gold, cvt.yuvReader_, cvt.grayWriter_);
else if(cvt.yuvWriter_)
referenceRGB2YUV<RGB2YUV_Converter> (src, gold, cvt.rgbReader_, cvt.yuvWriter_);
cv::cvtColor(src, dst, code, -1);
@ -475,7 +697,9 @@ INSTANTIATE_TEST_CASE_P(cvt420, Imgproc_ColorYUV,
(int)CV_YUV2RGBA_NV12, (int)CV_YUV2BGRA_NV12, (int)CV_YUV2RGBA_NV21, (int)CV_YUV2BGRA_NV21,
(int)CV_YUV2RGB_YV12, (int)CV_YUV2BGR_YV12, (int)CV_YUV2RGB_IYUV, (int)CV_YUV2BGR_IYUV,
(int)CV_YUV2RGBA_YV12, (int)CV_YUV2BGRA_YV12, (int)CV_YUV2RGBA_IYUV, (int)CV_YUV2BGRA_IYUV,
(int)CV_YUV2GRAY_420));
(int)CV_YUV2GRAY_420, (int)CV_RGB2YUV_YV12, (int)CV_BGR2YUV_YV12, (int)CV_RGBA2YUV_YV12,
(int)CV_BGRA2YUV_YV12, (int)CV_RGB2YUV_I420, (int)CV_BGR2YUV_I420, (int)CV_RGBA2YUV_I420,
(int)CV_BGRA2YUV_I420));
INSTANTIATE_TEST_CASE_P(cvt422, Imgproc_ColorYUV,
::testing::Values((int)CV_YUV2RGB_UYVY, (int)CV_YUV2BGR_UYVY, (int)CV_YUV2RGBA_UYVY, (int)CV_YUV2BGRA_UYVY,