Nikon COOLPIX S1 Repair Manual page 75

Image quality
Noise
Color reproduction
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Item
[Histogram's standard deviation]
・ Gray: 3.0 or less
Black: 3.0 or less
・ Set the scale to the 5100K-viewer, and in "AUTO" and the image
quality priority mode, take pictures of an object in the full field
angle.
・ Open the image data file via Photoshop and select an area to
be measured of each color (central area: 64 × 64 pixels) with
rectangle selector tool.
・ Read the histogram's gray standard deviation.
・ Measured area
Noise:
Upper left 2 step: Black, 6 steps: Gray
Lower left 6 steps: Gray, 10 steps: Black
・ Color
W 210 ± 20
Ye 205 ± 20
R 220 ± 20
・ Vividness
W 210 ± 20
Ye 210 ± 20
R 225 ± 20
・ Set the chart to the 5100K-viewer, and in "AUTO" and the image
quality priority mode, take pictures of an object in the full field
angle.
・ Open the image data file via Photoshop and select an area to
be measured of each color (central area: 64 × 64 pixels) with
rectangle selector tool.
・ Read the histogram's RGB.
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Criteria
R G B
210 ± 20 210 ± 20
215 ± 20 40 － 65
15 ± 10 10 － 35
R G B
210 ± 20 210 ± 20
220 ± 20 30 － 55
15 ± 10 15 ± 10
- R8･ S1 -
VAA35001-R.3666.A
Tools
5100K viewer
ITE γ 0.45
Gray scale (standard)
Photoshop
Color bar chart
Photoshop