questions about test.py

[Liz66666]

hi, thanks for your pytorch code!
I have seen your code about test a model, but I don't know why 4x and 4y should plus 2(line 115 and 116)?
And I have also seen that tf-version plus 2 too.
Thanks!

pytorch-cpn/256.192.model/test.py

Lines 110 to 117 in 48696a9

	if ln > 1e-3:
	x += delta * px / ln
	y += delta * py / ln
	x = max(0, min(x, cfg.output_shape[1] - 1))
	y = max(0, min(y, cfg.output_shape[0] - 1))
	resy = float((4 * y + 2) / cfg.data_shape[0] * (details[b][3] - details[b][1]) + details[b][1])
	resx = float((4 * x + 2) / cfg.data_shape[1] * (details[b][2] - details[b][0]) + details[b][0])
	v_score[p] = float(r0[p, int(round(y)+1e-10), int(round(x)+1e-10)])

[GengDavid]

Because we want to recover the precision lost costed in the generation of label maps.
Also can refer to this issue.

[Liz66666]

thanks for your reply!