User manual

SP-5000M-CXP2 / SP-5000C-CXP2
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8.4. Gamma
This command is used to set gamma between gamma 0.45 and gamma 1.0 (OFF) in 16 steps.
The gamma value is an approximate value.
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Fig. 32 Gamma compensation
8.5. Shading Correction
This function compensates for shading (non-uniformity) caused by the lens or the light source used.
This compensation can be performed even if shading issues are not symmetrical in horizontal and/or
vertical directions.
There are two methods of correction.
Flat shading correction:
The method to compensate the shading is to measure the highest luminance level in the
image and use that data as the reference. Luminance levels of other areas are then
adjusted so that the level of the entire area is equal. Compensation is performed using a
block grid of 20 blocks (H) x 16 blocks (V). Each block contains 128 x 128 pixels. The
complementary process is applied to produce the compensation data with less error.
Fig. 33 Flat shading correction concept drawing
Color shading correction (For SP-5000C-CXP2 only):
In this case, R channel and B channel are adjusted to match with G channel characteristics.
The block grid for compensation is 20 blocks (H) x 16 blocks (V). Each block contains 128 x
128 pixels and the complementary process is applied to produce the compensation data with
less error.
Adjustable range
Less 30%