How to get facial landmarks on Android platform?

[berak]

why on earth is it even using landmarks ?
it’s only counting faces !

@Cassiel

det_rects = face_detector(dlib_image);

please profile this

@Cassiel

    cv::cvtColor(rgbaMat, bgrMat, cv::COLOR_YUV2BGR_NV21);
 

algo works on grayscale images, convert directly:
https://docs.opencv.org/4.x/d8/d01/group__imgproc__color__conversions.html#gga4e0972be5de079fed4e3a10e24ef5ef0a1cba7092b4f0302693526ca578159ea0

@Cassiel

    if (image.channels() == 1) {
        cv::cvtColor(image, image, cv::COLOR_GRAY2BGR);
    }

why ? does not make sense