“This was miraculous. Messing with the FFT removed the [halftone] dots and nothing else — the image was still very sharp, especially if you compare it to the naïve blurring method.”
“This was miraculous. Messing with the FFT removed the [halftone] dots and nothing else — the image was still very sharp, especially if you compare it to the naïve blurring method.”
“The innovation that Johannes Gutenberg is said to have created was small metal pieces with raised backwards letters, arranged in a frame, coated with ink, and pressed to a piece of paper, which allowed books to be printed more quickly. But Choe Yun-ui did that—and he did it 150 years before Gutenberg was even born.”