Edge Emphasis; Editing; Density Conversion (Lut, I.e., Look-Up Table Processing); Density Adjustment (F-Value Conversion) - Canon iR1600 Service Manual

4.9 Edge Emphasis

Edge emphasis prevents blurred or crushed outlines of images by enhancing the
changes in density, bringing about well defined images and enabling faithful reproduction
of characters in test mode.

4.10 Editing

The machine offers blanking/masking, negative/positive reversal, and the like as editing
functions.

4.11 Density Conversion (LUT, i.e., look-up table processing)

In this block a data conversion table is used to convert intensity signals into density sig-
nals or to enable the best output density curve for each mode.

4.11.1 Density Adjustment (F-value conversion)

An F-value conversion table best suited to the copy density selected in the control panel is
used to adjust density.
4.11.2 Density Correction (γ correction)
In γ correction, the contrast and the density of image data are corrected. When an image is
read, the image data is subjected to conversion using a γ conversion table.
COPYRIGHT© 2002 CANON INC.
CHAPTER 3 IMAGE READING/PROCESSING SYSTEM
2000 CANON iR1600/iR2000 REV.1 JAN. 2002
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