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（二）违反国家规定，在文物保护单位附近进行爆破、钻探、挖掘等活动，危及文物安全的。
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Whereas the Instax Mini Evo’s companion app is more functional, Kodak’s hybrid Mini Shot 3 Retro is all about fun. The camera’s accompanying mobile app lets you apply frames, stickers, filters, and a wide range of customization options to photos, making it great for scrapbooking. There’s even a beauty feature in the app to conceal blemishes, as well as a set of Snapchat-like filters you can use to add, say, dog ears, making it a fun instant camera to use as a mini photo booth of sorts at parties.，详情可参考搜狗输入法下载
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This time, before we perturb the input image, we take the value given by the threshold matrix and divide it by , where is the number of levels for each colour component. As a result, each pixel is perturbed just enough to cover the minimal distance between two colours in the palette. Since the entire palette is evenly distributed across colour space, we only need to modify the range of perturbation along each axis. The dithering equation then becomes: