Spherical Video PTZ/User Guide/Quick Start Guide: Difference between revisions
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'''2.''' This example demonstrates the use of the Spherical Video PTZ engine to convert equirectangular images into rectilinear format. This command processes example_image.jpg, converting it from an equirectangular format to a rectilinear view. But you can use any other reference image as long as it is equirectangular. Run the example as: | '''2.''' This example demonstrates the use of the Spherical Video PTZ engine to convert equirectangular images into rectilinear format. This command processes example_image.jpg, converting it from an equirectangular format to a rectilinear view. But you can use any other reference image as long as it is equirectangular. Run the example as: | ||
<syntaxhighlight lang=bash line> | <syntaxhighlight lang=bash line> | ||
cd $LIBPANORAMA_PATH | cd $LIBPANORAMA_PATH/libpanorama | ||
./builddir/examples/ | ./builddir/examples/equirectangular_to_rectilinear $SAMPLES/example_image.jpg | ||
</syntaxhighlight> | </syntaxhighlight> | ||
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** Up: <code>8</code> | ** Up: <code>8</code> | ||
** Down: <code>2</code> | ** Down: <code>2</code> | ||
'''4.''' press the <code>Esc</code> key to exit the program | |||
=== Spherical Video PTZ Engine === | === Spherical Video PTZ Engine === | ||
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To pan a test video source 90 degrees, you can use the following pipeline: | To pan a test video source 90 degrees, you can use the following pipeline: | ||
<syntaxhighlight> | <syntaxhighlight> | ||
gst-launch-1.0 videotestsrc ! rrpanoramaptz | gst-launch-1.0 videotestsrc ! rrpanoramaptz zoom=2 ! fakesink | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 17:58, 22 March 2024
| Spherical Video PTZ |
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| Getting Started |
| User Guide |
| Examples |
| Performance |
| Contact Us |
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Libpanorama
This wiki introduces a basic use of Spherical Video PTZ for converting equirectangular images to rectilinear format with an engine. It includes a simple example and instructions on how to use the engine for different needs. The engine makes it easy to change panoramic images into a straight view, useful for many projects.
Minimal Application
After Building and Installation, follow these steps:
1. Download the sample images, if you haven't already.
cd $SAMPLES ./download_samples.sh
2. This example demonstrates the use of the Spherical Video PTZ engine to convert equirectangular images into rectilinear format. This command processes example_image.jpg, converting it from an equirectangular format to a rectilinear view. But you can use any other reference image as long as it is equirectangular. Run the example as:
cd $LIBPANORAMA_PATH/libpanorama ./builddir/examples/equirectangular_to_rectilinear $SAMPLES/example_image.jpg
3. For this example you can use the interactive controls with the Spherical Video PTZ (Pan-Tilt-Zoom) for dynamic exploration of panoramic images. Hit the specified keys when the example is running:
- Zoom In/Out: Adjust the zoom level to get a closer view or a wider perspective of the image.
- In:
i - Out:
o
- In:
- Pan Left/Right: Rotate the view horizontally to explore the left or right sides of the panoramic image.
- Left:
4 - Right:
6
- Left:
- Tilt Up/Down: Adjust the vertical angle of the camera to look up or down within the panoramic image.
- Up:
8 - Down:
2
- Up:
4. press the Esc key to exit the program
Spherical Video PTZ Engine
Description of how to use the engine
GstRrPanoramaptz
The GstRrPanoramaptz plugin allows for real-time PTZ adjustments on panoramic video feeds, enabling users to explore video scenes in greater detail or from different perspectives.
Overview
Features
- CUDA-accelerated PTZ transformations.
- Support for RGBA video format.
- Dynamic parameter adjustments for pan, tilt, and zoom.
Properties
- Rotate the video on its horizontal axis. Range: -360 to 360 degrees. Default: 0.
- Rotate the video on its vertical axis. Range: -360 to 360 degrees. Default: 0.
- Dynamic parameter adjustments for pan, tilt, and zoom. WIP
Caps and Formats
- Accepts and outputs video in video/x-raw format with RGBA color space.
- Supports both system memory and NVMM memory inputs for enhanced performance on NVIDIA hardware.
Basic use example
To pan a test video source 90 degrees, you can use the following pipeline:
gst-launch-1.0 videotestsrc ! rrpanoramaptz zoom=2 ! fakesink