Moving beyond just black and white towards full-colour variable palettes presents another set of problems. Taking the methods presented above and quantising an image using an arbitrary colour palette reveals that error-diffusion is also better at preserving colour information when compared to ordered dithering.
The 4732 and its 473x compatriots became the last real IBM ATMs. After a hiatus
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Карина Черных (Редактор отдела «Ценности»)，更多细节参见旺商聊官方下载
Фото: Toby Melville / Reuters
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