However, from the original drawing or photograph, it is first necessary to isolate each of the three main colors and the black into sets of dots that indicate the lighter or darker intensities of each color.
लेकिन ये चार रंग कैसे एक छपे हुए पृष्ठ पर देखे जानेवाले बाकी विभिन्‍न रंगों को बनाते हैं?