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#include "../../structures/image2d.h"
#include "combinatorialthresholder.h"
#include "thresholdtools.h"
void CombinatorialThresholder::HorizontalVarThreshold(const Image2D* input,
Mask2D* mask,
size_t length,
num_t threshold) {
size_t width = input->Width() - length + 1;
for (size_t y = 0; y < input->Height(); ++y) {
for (size_t x = 0; x < width; ++x) {
bool flag = true;
for (size_t i = 0; i < length; ++i) {
if (input->Value(x + i, y) < threshold &&
input->Value(x + i, y) > -threshold) {
flag = false;
break;
}
}
if (flag) {
for (size_t i = 0; i < length; ++i) mask->SetValue(x + i, y, true);
}
}
}
}
void CombinatorialThresholder::VerticalVarThreshold(const Image2D* input,
Mask2D* mask, size_t length,
num_t threshold) {
size_t height = input->Height() - length + 1;
for (size_t y = 0; y < height; ++y) {
for (size_t x = 0; x < input->Width(); ++x) {
bool flag = true;
for (size_t i = 0; i < length; ++i) {
if (input->Value(x, y + i) <= threshold &&
input->Value(x, y + i) >= -threshold) {
flag = false;
break;
}
}
if (flag) {
for (size_t i = 0; i < length; ++i) mask->SetValue(x, y + i, true);
}
}
}
}
void CombinatorialThresholder::VarThreshold(const Image2D* input, Mask2D* mask,
size_t length, num_t threshold) {
HorizontalVarThreshold(input, mask, length, threshold);
VerticalVarThreshold(input, mask, length, threshold);
}
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