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Update vibe-background-sequential.cpp #206

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Sep 14, 2021
Merged

Update vibe-background-sequential.cpp #206

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25 changes: 15 additions & 10 deletions src/algorithms/ViBe/vibe-background-sequential.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -548,16 +548,21 @@ namespace bgslibrary
model->historyBuffer = (uint8_t *)malloc((3 * width) * height * (model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES) * sizeof(uint8_t));
assert(model->historyBuffer != NULL);

for (int index = (3 * width) * height - 1; index >= 0; --index) {
uint8_t value = image_data[index];

for (int x = 0; x < model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES; ++x) {
int value_plus_noise = value + rand() % 20 - 10;

if (value_plus_noise < 0) { value_plus_noise = 0; }
if (value_plus_noise > 255) { value_plus_noise = 255; }

model->historyBuffer[index * (model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES) + x] = value_plus_noise;
auto plus_noise = [](uint8_t value) -> int {int value_plus_noise = value + rand() % 20 - 10;
if (value_plus_noise < 0) { value_plus_noise = 0; }
if (value_plus_noise > 255) { value_plus_noise = 255; }
return value_plus_noise;};
for(int index = (3 * width) * height - 1; index >= 0; index -= 3) {
uint8_t value_1 = image_data[index];
uint8_t value_2 = image_data[index - 1];
uint8_t value_3 = image_data[index - 2];
for(int x = 0; x < model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES; ++x) {
int value_plus_noise1 = plus_noise(value_1);
int value_plus_noise2 = plus_noise(value_2);
int value_plus_noise3 = plus_noise(value_3);
model->historyBuffer[(index - 2) * (model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES) + x * 3 + 2] = value_plus_noise1;
model->historyBuffer[(index - 2) * (model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES) + x * 3 + 1] = value_plus_noise2;
model->historyBuffer[(index - 2) * (model->numberOfSamples - NUMBER_OF_HISTORY_IMAGES) + x * 3] = value_plus_noise3;
}
}

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