Hello, guys! I'm playing with KCF tracker in Opencv3.3.1. I have learned this tutorial on https://docs.opencv.org/3.3.1/dc/db8/tutorial_customizing_cn_tracker.html. Now I wonder how I can use HOG feature in KCF. I tried using HOGDescriptor to compute the features of roi region. But it seems that the dimensions of feat and dimensions of hann used in KCF implementations mismatched. I have googled for it but I can't find related issues. So is there anyone can help or give me some hints kindly? Thank you very much.