5.11. One Pixel Snow Noise Remove - Imi Tech PEARL IMB-20FT User's Operation Manual

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The user defined LUT save procedure is as follows:
1. Check the save ready bit (bit1) status of the LUT save control register (0xF2F10140). If bit 1 is 0, wait.
2. Write 1 at the LUT buffer address init bit (bit7) of the LUT save control register (0xF2F10140) : 0xF2F10140
(<= 0x01000000).
3. Then write 4096 LUT data at the LUT data register (0xF2F10144).
4. Finally, write save command (bit0), LUT index (N : bit8~bit11) at the LUT save control
register(0xF2F10140) : 0xF2F10140 (<= 0x80N00000).

5.11. One Pixel Snow Noise Remove

This is to average the value of snow noise in a pixel by using the neighboring pixels' values. The Operation
scheme is as follows. If ((Pi-Pi-1) > Threshold*16) and ((Pi-Pi+1) > (Threshold*16)), Pi is a bad pixel. The Color
camera does not have a bad pixel removal function. This function increases the average pixel's values for the
whole image and is automatically displayed. The images can be compensated by up to 50%. The address for this
function is as follows:
Address
0xF2F20150
One Pixel Snow Noise Remove
Bit 0 : presence inquiry (read only)
Bit 1 ~ Bit 5 : reserved
Bit 6 : on/off
Bit 7~Bit23 : reserved
Bit 24~Bit31 : Threshold Value (T) :
If Pixel difference value > Threshold Value, then replace near pixel average
Description (bit 0: msb)
P i o n e e r i n D i g i t a l V i s i o n T e c h n o l o g y
PEARL SERIES Operation Manual
Read/Write
Write only