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Fixed region_is_masked function to correctly respond if region is masked

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This commit is contained in:
Matt Hill
2016-03-27 13:46:49 -04:00
parent 306df68f3a
commit 68ec0022f9
1 changed files with 12 additions and 3 deletions
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15
src/openalpr/detection/detectormask.cpp
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@@ -111,14 +111,23 @@ namespace alpr
// Checks if the provided region is partially covered by the mask
// If so, it is disqualified
bool DetectorMask::region_is_masked(cv::Rect region) {
int MIN_WHITENESS = 253;
int MIN_WHITENESS = 248;
// If the mean pixel value over the crop is very white (e.g., > 253 out of 255)
// then this is in the white area of the mask and we'll use it
Mat mask_crop = mask(region);
// Make sure the region doesn't extend beyond the bounds of our image
expandRect(region, 0, 0, resized_mask.cols, resized_mask.rows);
Mat mask_crop = resized_mask(region);
double mean_value = mean(mask_crop)[0];
return mean_value >= MIN_WHITENESS;
if (config->debugDetector)
{
cout << "region_is_masked: Mean whiteness: " << mean_value << endl;
}
return mean_value < MIN_WHITENESS;
}
}
Mat DetectorMask::apply_mask(Mat image) {