There are a few subtle upgrades to the Mini 41, however. A textured grip in the front makes it easier to hold, and its shape makes shooting in landscape mode more comfortable. But those are small differences, and at their core, the cameras offer the same experience. Since the Instax Mini 12 retails for less, I ultimately believe it’s the better value; however, if a fashionable, mature look appeals to you, the Mini 41 is a great alternative, especially if you can find it on sale.
All of the examples demonstrating ordered dithering so far have been produced using a specific type of threshold matrix commonly known as a Bayer matrix. In theory however any matrix could be used and a number of alternatives are available depending on your qualitative preference. Matrices also don’t have to be square or even rectangular; polyomino-based dithering matrices have been explored as well[6].
，这一点在夫子中也有详细论述
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