10
Image Format Control
The focus on the interesting parts of an image can be set by setting the region of interest (ROI)
(see Section 10.1).
The ROI influences the image size which leads into an increased frame rate (see Chapter 11 for
more information about the available frame rate).
10.1
Region of Interest (ROI)
Some applications do not need full image resolution. By reducing the image size to a certain
region of interest (ROI), the frame rate can be increased. A region of interest can be almost
any rectangular window and is specified by its position within the full frame and its width (W)
and height (H).
The ROI width must be a multiple of 8 and not smaller than 16. The ROI height
must be at least 2.
10.2
Pixel format
The pixel format defines the output format of the pixels in the image. Following pixel formats
are available.
Mono 8
Mono10
Mono12
Mono10 Packed
Mono12 Packed
10.3
Decimation (monochrome cameras)
Decimation in y-direction transfers every n
th
row only and directly results in reduced read-out
time and higher frame rate respectively.
Fig. 10.1 shows decimation on the full image. The rows that will be read out are marked by red
lines. Row 0 is read out and then every n
th
row.
Fig. 10.2 shows decimation on a ROI. The row specified by the Window.Y setting is first read
out and then every n
th
row until the end of the ROI.
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Summary of Contents for MV4 Series
Page 8: ...CONTENTS 8 of 143 MAN093 08 2021 V1 1 ...
Page 12: ...1 Preface 12 of 143 MAN093 08 2021 V1 1 ...
Page 40: ...4 Image Acquisition 40 of 143 MAN093 08 2021 V1 1 ...
Page 42: ...5 Exposure Control 42 of 143 MAN093 08 2021 V1 1 ...
Page 52: ...6 Counter Timer 52 of 143 MAN093 08 2021 V1 1 ...
Page 64: ...10 Image Format Control 64 of 143 MAN093 08 2021 V1 1 ...
Page 66: ...11 Frame Rate 66 of 143 MAN093 08 2021 V1 1 ...
Page 82: ...12 Pixel Data Processing 82 of 143 MAN093 08 2021 V1 1 ...
Page 92: ...12 Pixel Data Processing 92 of 143 MAN093 08 2021 V1 1 ...
Page 96: ...13 Precautions 96 of 143 MAN093 08 2021 V1 1 ...
Page 120: ...16 Troubleshooting 120 of 143 MAN093 08 2021 V1 1 ...
Page 126: ...19 Support and Repair 126 of 143 MAN093 08 2021 V1 1 ...
Page 128: ...20 References 128 of 143 MAN093 08 2021 V1 1 ...