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54
Features and Configuration Options
Calibir GXM640 IR Camera User's Manual
Fixed Adaptive Mode
The fixed adaptive mode uses a fixed range based on the contrast setting to map pixels
from 16-bits to 8-bits. The size of this range does not change, regardless of the scene
content, ensuring a constant contrast. That is, the range moves with the average pixel
value, whatever it is. Therefore, to ensure optimal mapping, use a contrast setting that
best suits the expected scene.
Average Pixel Value
16-bit
Histogram
Fixed Adaptive Image Enhancement
Average Pixel Value
0
255
Contrast setting determines fixed pixel
range in 14-bits to map in 8-bits.
0
255
If the image scene changes, the size of
the range to map remains the same.
16-bit
Histogram
Figure 18: Fixed Adaptive Image Enhancement
The fixed adaptive mode also provides a Brightness (brightness) feature that shifts all
pixel values higher (brightness > 128) or lower (brightness < 128).