从低亮度图像中检测 Dlib 人脸

Question

I want to detect face from image with low brightness. I'm using dlib for detecting the face from image. But the dlib detector is detecting no face at all. I've the following code to detect faces from image.

detector=dlib.get_frontal_face_detector()
faces=detector(image)

when i try to print the length of the faces it displays zero. Can anybody help me, what shall I do? Is there other way to detect images from low brightness images? thanks.

Answer 1

Dlib face detector is a very precise one. But as a cost it has low recall, especially when images are bad and/or faces are small. Try another face detector, like Seeta https://github.com/seetaface/SeetaFaceEngine Pico https://github.com/nenadmarkus/pico or OpenCV Those may provide detections. But false detections as well.