Another way to look at our threshold matrix is as a kind of probability matrix. Instead of offsetting the input pixel by the value given in the threshold matrix, we can instead use the value to sample from the cumulative probability of possible candidate colours, where each colour is assigned a probability or weight . Each colour’s weight represents it’s proportional contribution to the input colour. Colours with greater weight are then more likely to be picked for a given pixel and vice-versa, such that the local average for a given region should converge to that of the original input value. We can call this the N-candidate approach to palette dithering.
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如果说文化上的早期中国孕育于史前时期，秦汉国家则确立了政治与疆域上的“大一统”。作为秦人经略西部边疆的见证，秦“采药昆仑”石刻（尕日塘秦刻石）的公布一度引起学界广泛争论。理不辩不明，仝涛结合严谨的文字识读与地望考证，确认其是现存于原址的唯一一处秦代刻石。这一成果表明，早在2000多年前，大一统王朝国家就已将其意志贯彻到了高原之巅、黄河之源。
第二十五条 一般纳税人取得的固定资产、无形资产或者不动产（以下统称长期资产），既用于一般计税方法计税项目，又用于简易计税方法计税项目、免征增值税项目、不得抵扣非应税交易、集体福利或者个人消费（以下统称五类不允许抵扣项目）的，属于用作混合用途的长期资产，对应的进项税额依照增值税法和下列规定处理：