About the box down-sample kernel

[Liangbin]

Does the box down-sample kernel mentioned in your paper can be implemented by function imresize(img_hr, 1/up_scale, 'box'), I'm not sure whether they are same?

thanks~

[Tianfan Xue]

Sorry for the late reply. Yes, that is roughly how we generated downsampled images. Also, the model we released in this github is training on downsampled images using a cubic kernel, so it may perform worse on images downsampled by box kernels.

[Liangbin]

thanks~