1, scanner parameter setting problem: Kodak i2400 scanner has many parameter settings, such as scan resolution, color mode, contrast, etc. Different parameter settings will affect the scanning effect.
2. Original question: If the fingerprint official seal itself has the problem of yellowing, then the scanned effect will also have corresponding problems.
3. Light problem: The intensity and color of light will also affect the scanning effect. If the light is uneven or the color is yellow, the color of the scanned fingerprint official seal will be yellow.