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Adapt pipeline to transmit single line (2456x1) instead of 2456x4

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- Modified recv_raw_rolling.py to handle 2456x1 BGR line format
- Fixed display dimensions (2456 tall x 800 wide)
- Updated 200fps-2456x4pix-cw.ini to start at Y=500
- Added detailed single line transmission docs to network_guide.md
- Updated README.md with quick start example using videocrop
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yair
2025-11-14 19:32:14 +02:00
parent 3349050849
commit 3a799c0a65
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network_guide.md
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# how to send a line
# How to Send a Single Line (2456x1)
real data
## Real Data - Single Line Transmission
The camera captures 2456x4 pixels, but we extract and transmit only **one line (2456x1)** using `videocrop`.
### Daytime Configuration (200fps)
```powershell
gst-launch-1.0 idsueyesrc config-file=ini/200fps-2456x4pix-cw.ini exposure=5 framerate=300 `
! queue `
gst-launch-1.0 idsueyesrc config-file=ini/200fps-2456x4pix-cw.ini exposure=5 framerate=200 `
! videocrop bottom=3 `
! queue `
! udpsink host=127.0.0.1 port=5000
```
note: 5ms is bit too fast for us
### Nighttime Configuration (100fps, extra gain)
```powershell
gst-launch-1.0 idsueyesrc config-file=ini/100fps-10exp-2456x4pix-500top-cw-extragain.ini exposure=10 framerate=100 `
! videocrop bottom=3 `
! queue `
! udpsink host=127.0.0.1 port=5000
```
**Key Parameters:**
- `videocrop bottom=3` - Extracts only the top line (removes bottom 3 rows from 2456x4 image)
- Input: 2456x4 BGR from camera
- Output: 2456x1 BGR line transmitted via UDP
- Frame size: 7368 bytes (2456 × 1 × 3 channels)
**Alternative:** To extract the bottom line instead, use `videocrop top=3`
### Python/OpenCV Receiver
```pwsh
uv run scripts/recv_raw_column.py
```
or rolling like
```pwsh
# Basic rolling display
uv run .\scripts\recv_raw_rolling.py
```
See [`scripts/recv_raw_column.py`](scripts/recv_raw_column.py) for the Python implementation with debug options.
```pwsh
# With display throttling and recording
uv run .\scripts\recv_raw_rolling.py --display-fps 60 --save-mjpeg .\results\output_60fps.avi
```
```pwsh
# Max performance (no display, stats only)
uv run .\scripts\recv_raw_rolling.py --no-display
```
See [`scripts/recv_raw_rolling.py`](scripts/recv_raw_rolling.py) for the Python implementation with debug options.
# demo data
## Configuration Notes
Both INI files are configured with:
- Start Y = 500 (captures from row 500 of the sensor)
- Height = 4 pixels
- Width = 2456 pixels
- This optimizes for the center region of the sensor
**Note:** `exposure=5` (5ms) may be too fast for some applications. Adjust based on your requirements.
---
# Demo Data (Testing)
## Sender (crop to first column, send raw over UDP)
```pwsh
gst-launch-1.0 -v `