VRA53801-R.3609.A
- M8 ･ -
LS-50
2. 10 Ir-leak correction
To reduce effects by infrared ray leak (Ir leak), which is included in R-LED, the driver processes the
correction. When products are deilvered from factory, Ir-pass lter is scanned for inspection and the
correction amount is calculated to be written in the ash memory on the PCB. The driver software
reads the amount and reect on LUT for correction when image is output. The correction values are:
Leak_g for general lms, Leak_s for special lms, and Leak_k for Kodachrome.
2. 11 Image output (Host processing）
Posi-lms：The scan data from the body (scanner) is posi-linear output, and the driver manipulates
an image such as γ-compensation. However, only about Kodachrome, the driver
designates the lm type.
Nega-lms：Based on the results of prescan and base density measurement, LUT for nega/posi
conversion is created. This creation of LUT is made by the driver software, and the body
(scanner) does not make nega/posi conversion. The processes, such as γ-compensation,
CMS-compensation, tone curve compensation, color balance compensation, LCH
compensation, and unsharp masking compensation, are performed by the driver
software.
Scan image enhancer: “Scan image enhancer” is included in the driver software to enhance images
through one-touch operation, and reduce the burden on users' adjustments.
2. 12 Analog gain
By driver designation, it is possible to increase/decrease the exposure time.
Master volume: -2 ～ +2EV Each color: -2 ～ +2EV (Total maximum range: -4EV ～ +4EV）
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