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CMV2000 Datasheet(PDF) 36 Page - ams AG

Part # CMV2000
Description  2.2 Megapixel machine vision CMOS image sensor
PDF  64 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

CMV2000 Datasheet(HTML) 36 Page - ams AG

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Reference: CMV2000-datasheet-v3.8
CMV2000 v3 Datasheet
Page 35 of 63
© 2015 CMOSIS bvba
5.4 IMAGE FLIPPING
The image coming out of the image sensor can be flipped in X (per channel) and/or Y direction. When flipping in Y is
enabled, the bottom left pixel (0,1087) is read out first instead of the top left pixel (0,0). When flipping in X is enabled,
only the pixels within a channel are mirrored, not the channels themselves. In this case, the first row in channel 1 to be
read out is pixel (1023,0) to pixel (0,0). In channel 2, this is pixel (2047,0) to pixel (1024,0).
2048x1088
2048x1088
Pixel (0,0)
Pixel (2047,1087)
2048x1088
Pixel (0,0)
Pixel (2047,1087)
Image flipping in Y
CH1
(1024x1088)
Pixel (0,0)
Pixel (1023,1087)
CH2
(1024x1088)
Pixel (1024,0)
Pixel (2047,1087)
CH1
(1024x1088)
Pixel (0,0)
Pixel (1023,1087)
CH2
(1024x1088)
Pixel (1024,0)
Pixel (2047,1087)
Image flipping in X
Using 2 output
channels
Pixel (0,1087)
Pixel (2047,0)
2048x1088
Pixel (0,0)
Pixel (2047,1087)
Image flipping in Y
CH1
(1024x1088)
Pixel (0,0)
Pixel
(1023,1087)
CH2
(1024x1088)
Pixel (1024,0)
Pixel
(2047,1087)
CH1
(1024x1088)
Pixel (1023,0)
Pixel
(0,1087)
CH2
(1024x1088)
Pixel (2047,0)
Pixel
(1024,1087)
Image flipping in X
Using 2 output
channels
Pixel (0,1087)
Pixel (2047,0)
Pixel (0,0)
Pixel (2047,0)
Pixel
(0,1087)
Pixel (1023,0)
Pixel
(1024,1087)
Pixel (2047,1087)
Pixel (1024,0)
Pixel
(2047,1087)
Pixel (0,0)
Pixel
(1023,1087)
FIGURE 40: IMAGE FLIPPING
Image flipping
Register name
Register address
Default value
Description of the value
Image_flipping
40[1:0]
0
0: No image flipping
1: Image flipping in X
2: Image flipping in Y
3: Image flipping in X and Y
5.5 IMAGE SUBSAMPLING
To maintain the same field of view but reduce the amount of data coming out of the sensor, a subsampling mode is
implemented on the chip. Different subsampling schemes can be programmed by setting the appropriate registers.
These subsampling schemes can take into account whether a color or monochrome sensor is used to preserve the Bayer
pattern information. The registers involved in subsampling are detailed below. A distinction is made between a simple
and advanced mode (can be used for color devices). Subsampling can be enabled in every windowing mode.
5.5.1 SIMPLE SUBSAMPLING
Image subsampling - simple
Register name
Register address
Default value
Description of the value
Number_lines
1[7:0]
2[7:0]
1088
Defines the total number of lines read-out by the sensor
(min=1, max=1088)
Sub_s
35[7:0]
36[7:0]
0
Number of rows to skip (min=0, max=1086)
Sub_a
37[7:0]
38[7:0]
0
Identical to Sub_s



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