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Made random_cropper use cleaner and unbiased dlib::rand interface.

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This commit is contained in:
Davis King 2017-10-27 07:27:57 -04:00
parent faf8676a49
commit 347257cbc0
1 changed files with 5 additions and 5 deletions
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10
dlib/image_transforms/random_cropper.h
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@ -157,7 +157,7 @@ namespace dlib
DLIB_CASSERT(images.size() == rects.size());
size_t idx;
{ std::lock_guard<std::mutex> lock(rnd_mutex);
idx = rnd.get_random_64bit_number()%images.size();
idx = rnd.get_integer(images.size());
}
(*this)(images[idx], rects[idx], crop, crop_rects);
}
@ -290,9 +290,9 @@ namespace dlib
)
{
DLIB_CASSERT(has_non_ignored_box(rects));
size_t idx = rnd.get_random_64bit_number()%rects.size();
size_t idx = rnd.get_integer(rects.size());
while(rects[idx].ignore)
idx = rnd.get_random_64bit_number()%rects.size();
idx = rnd.get_integer(rects.size());
return idx;
}
@ -311,8 +311,8 @@ namespace dlib
auto scale = rnd.get_double_in_range(mins, maxs);
rectangle rect(scale*dims.cols, scale*dims.rows);
// randomly shift the box around
point offset(rnd.get_random_32bit_number()%(1+img.nc()-rect.width()),
rnd.get_random_32bit_number()%(1+img.nr()-rect.height()));
point offset(rnd.get_integer(1+img.nc()-rect.width()),
rnd.get_integer(1+img.nr()-rect.height()));
return move_rect(rect, offset);
}