Hi there, I need coloring meter to separate some 60 shades/colors of red in OLD postage stamps. Is there anything in the market that is available. Best regards Don.
Because a coloured substance appears to be of that colour because it absorbs the complementary colour. So that the colour of the substance is reflected and reches our eyes. e.g.: A red coloured substances will absorb the blue-green colour from the incident white light and rest is reflected. In the reflected beam due to the absence of the blue-green colour, red colour will become more pronounced and will reach our eyes. So we will perceive the object as being red coloured.
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