Canon CANOSCAN D1230 series Service Manual page 42

CHAPTER 2
6. Image Inversion (negative/positive)
Image inversion is to reverse the density level of a document by inverting the color data, 8-bit
grayscale data or binary data.
Image Inversion
ABC ABC
Document Image Output
Figure 2-20
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COPYRIGHT 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MAR. 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)