My simple implementation's Degrade Weights traverses the weight array and randomly sets weights to zero.
我的简单实现的退化权重（DegradeWeights）会遍历权重数组并随机地将权重设置为 0。
If there's little variation in color across the block, the weights of most of those frequencies will be zero or near zero.
如果元块内颜色变化范围不大的话，大多数这些频率的权重都是0或接近0。
If there's little variation in color across the block, the weights of most of those frequencies will be zero or near zero.
如果元块内颜色变化范围不大的话，大多数这些频率的权重都是0或接近0。
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