void TSymptom::Process()
{
awpImage* pbg = m_background.GetImage();
awpImage* pcr = m_current.GetImage();
awpImage* pdf = m_diff.GetImage();
awpImage* pbn = m_binary.GetImage();
awpImage* pbns = m_binary_source.GetImage();
_awpZeroImage(pbn);
_awpZeroImage(pbns);
_awpZeroImage(pdf);
if (pbg == NULL || pcr == NULL || pdf == NULL || pbn == NULL)
return;
if (pbg->sSizeX != pcr->sSizeX || pbg->sSizeY != pcr->sSizeY)
return;
//вычисление разницы между полученным изображением и эталонным.
AbsDiff();
if (m_NumFrames < m_NumFramesToTraining)
return;
//нахождение бинарного изображения
_awpAdaptiveThreshold(pdf, pbns);
::awpCopyImage(pbns, &pbn);
_awpNoiseRemove(pbns);
//awpGaussianBlur(pbns, pbn,2);
#ifdef _DEBUG
m_background.SaveImage("background.jpg");
m_current.SaveImage("Current.jpg");
m_diff.SaveImage("diff.jpg");
m_binary.SaveImage("binary.jpg");
m_binary_source.SaveImage("binary_source.jpg");
#endif
// сопровождение найденных объектов
for (int i = 0; i < m_BLOBs.GetCount(); i++)
{
TLFBLOBObject* bo = (TLFBLOBObject*)m_BLOBs.Get(i);
bo->TrackBLOB(NULL);
}
// вычисление интегрального изображения.
// todo: удаление областей на бинарном изображении, занятых объектами.
ApplyMask(pbn);
// анализ полученного бинарного изображения
// нахождение новых объектов
Analysis(NULL);
}
/*
Change the population counts in a way that the consequent Huffman tree
compression, especially its rle-part will be more likely to compress this data
more efficiently. length containts the size of the histogram.
*/
void OptimizeHuffmanForRle(int length, size_t* counts) {
int i, k, stride;
size_t symbol, sum, limit;
int* good_for_rle;
/* 1) We don't want to touch the trailing zeros. We may break the
rules of the format by adding more data in the distance codes. */
for (; length >= 0; --length) {
if (length == 0) {
return;
}
if (counts[length - 1] != 0) {
/* Now counts[0..length - 1] does not have trailing zeros. */
break;
}
}
/* 2) Let's mark all population counts that already can be encoded
with an rle code.*/
good_for_rle = (int*)malloc(length * sizeof(int));
for (i = 0; i < length; ++i) good_for_rle[i] = 0;
/* Let's not spoil any of the existing good rle codes.
Mark any seq of 0's that is longer than 5 as a good_for_rle.
Mark any seq of non-0's that is longer than 7 as a good_for_rle.*/
symbol = counts[0];
stride = 0;
for (i = 0; i < length + 1; ++i) {
if (i == length || counts[i] != symbol) {
if ((symbol == 0 && stride >= 5) || (symbol != 0 && stride >= 7)) {
for (k = 0; k < stride; ++k) {
good_for_rle[i - k - 1] = 1;
}
}
stride = 1;
if (i != length) {
symbol = counts[i];
}
} else {
++stride;
}
}
/* 3) Let's replace those population counts that lead to more rle codes. */
stride = 0;
limit = counts[0];
sum = 0;
for (i = 0; i < length + 1; ++i) {
if (i == length || good_for_rle[i]
/* Heuristic for selecting the stride ranges to collapse. */
|| AbsDiff(counts[i], limit) >= 4) {
if (stride >= 4 || (stride >= 3 && sum == 0)) {
/* The stride must end, collapse what we have, if we have enough (4). */
int count = (sum + stride / 2) / stride;
if (count < 1) count = 1;
if (sum == 0) {
/* Don't make an all zeros stride to be upgraded to ones. */
count = 0;
}
for (k = 0; k < stride; ++k) {
/* We don't want to change value at counts[i],
that is already belonging to the next stride. Thus - 1. */
counts[i - k - 1] = count;
}
}
stride = 0;
sum = 0;
if (i < length - 3) {
/* All interesting strides have a count of at least 4,
at least when non-zeros. */
limit = (counts[i] + counts[i + 1] +
counts[i + 2] + counts[i + 3] + 2) / 4;
} else if (i < length) {
limit = counts[i];
} else {
limit = 0;
}
}
++stride;
if (i != length) {
sum += counts[i];
}
}
free(good_for_rle);
}
struct marker_deviation_t marker(struct image_t *input, uint8_t M)
{
struct marker_deviation_t marker_deviation;
marker_deviation.x = 0;
marker_deviation.y = 0;
marker_deviation.inlier = 0;
uint8_t *source = (uint8_t *) input->buf;
uint16_t x, y, i, j, k;
if (M < 1) { M = 1; }
source = (uint8_t *) input->buf;
int maxx = 160;
int maxy = 120;
int maxv = 0;
for (j = M; j < (input->h - M); j++) {
for (i = M; i < (input->w - M); i++) {
int bad, good;
good = bad = 0;
for (k = 1; k < M; k++) {
// Pattern must be symmetric
bad += AbsDiff(Img(i - k, j) , Img(i + k, j));
bad += AbsDiff(Img(i, j - k) , Img(i, j + k));
bad += AbsDiff(Img(i - k, j - k) , Img(i + k, j + k));
bad += AbsDiff(Img(i + k, j - k) , Img(i - k, j + k));
// Pattern: Must have perpendicular contrast
good += AbsDiff(Img(i - k, j) + Img(i + k, j), Img(i, j - k) + Img(i, j + k));
good += AbsDiff(Img(i - k, j - k) + Img(i + k, j + k), Img(i + k, j - k) + Img(i - k, j + k));
}
for (k = 4; k < M; k += 2) {
// Pattern must be symmetric
bad += AbsDiff(Img(i - k, j - k / 2) , Img(i + k, j + k / 2));
bad += AbsDiff(Img(i + k / 2, j - k) , Img(i - k / 2, j + k));
bad += AbsDiff(Img(i - k / 2, j - k) , Img(i + k / 2, j + k));
bad += AbsDiff(Img(i + k, j - k / 2) , Img(i - k, j + k / 2));
// Pattern: Must have perpendicular contrast
good += AbsDiff(Img(i - k, j - k / 2) + Img(i + k, j + k / 2), Img(i + k / 2, j - k) + Img(i - k / 2, j + k));
good += AbsDiff(Img(i - k / 2, j - k) + Img(i + k / 2, j + k), Img(i + k, j - k / 2) + Img(i - k, j + k / 2));
}
int v = good - bad;
if (v < 0) {
v = 0;
}
if (v > maxv) {
maxv = v;
maxx = i;
maxy = j;
}
if (v > 0) {
Out(i, j) = 0xff;
}
}
}
// Display the marker location and center-lines.
for (y = 0; y < input->h; y++) {
Out(maxx, y) = 0xff;
}
for (x = 0; x < input->w; x++) {
Out(x, maxy) = 0xff;
}
marker_deviation.x = ((int32_t)0) - ((int32_t)(input->w) / 2);
marker_deviation.y = -((int32_t)0) + ((int32_t)(input->h) / 2);
marker_deviation.inlier = 0;
//printf("The number of inliers = %i\n", counter3);
return marker_deviation;
}
