Hence, if we are dealing with true colour (RGB) images, you want lots of uniform zones, preferably on horizontal or vertical directions, or very smooth, so that the prediction errors are small.
因此，如果我们处理真彩色(rgb)图像，你想大量的均匀区域，最好是在水平或垂直方向，或非常光滑，使预测误差小。
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