lotus0903

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> you should change '`viz3.astype('uint8')`' to '`viz3.transpose(1, 2, 0).astype('uint8')`', due to the format should be [h, w, 3], not [3, h, w]. Through this, I also got the issue about...

> Due to the problem above, when testing masks' output, the results of flow are totally black. Besides, the colormap of hot needs to be defined in `utils/COLORMAPS`. I wonder...