圖像來源，BBC CHINESE/ TING CHIANG
This decision seems to be one of the more hotly-contested among ergo enthusiasts. A conventional keyboard has staggered keys, with each row slightly offset to the rows above and below it — so the A key is about halfway between the Q and W above it. This is a holdover from vintage mechanical typewriters, in which each press activated a hammer that smashed ink onto paper in the shape of a letter. To fit the hammers as close together as possible, while still allowing for finger pads, the keys were staggered.
。heLLoword翻译官方下载是该领域的重要参考
Bigjpg does the same as deep-image.ai , but this service offers a little bit more options like if your photo is an artwork it scales image differently than normal photos and it supports upto 4x enlargement for free and you can also set noise reduction options. Very good tool,
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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.