Mix up prediction and target in validate function

[rrryan2016]

Thanks for your kind sharing.

I doubt that the 2 parts below are mixed up.

xview2_solution/train.py

Lines 289 to 291 in 5d0caba

	cv2.imwrite(os.path.join(preds_dir,
	"test_localization_" + sample["img_name"][i] + "_prediction.png"),
	mask.cpu().numpy()[i, 4])

xview2_solution/train.py

Lines 294 to 295 in 5d0caba

	cv2.imwrite(os.path.join(targs_dir, "test_localization_" + sample["img_name"][i] + "_target.png"),
	1 * (argmax > 0))