Add rollingsum filter for frame analysis based on column mean deviation

- Implements GStreamer element that analyzes pixel columns
- Drops frames when column mean deviates from rolling baseline
- Configurable window size, column index, stride, and threshold
- Includes design documentation and build script
- Tested successfully with IDS uEye camera source

BUILD_IDSUEYE.md

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+# Building IDS uEye Plugin Only
+
+This guide explains how to build only the IDS uEye GStreamer plugin from the gst-plugins-vision project.
+
+## Prerequisites
+
+1. **IDS uEye SDK** must be installed on your system
+   - Default location (Windows): `C:\Program Files\IDS\uEye\Develop`
+   - If installed elsewhere, set the `IDSUEYE_DIR` CMake variable
+
+2. **Build tools**:
+   - CMake (version 2.8.0 or higher)
+   - Visual Studio 2019 or newer (on Windows)
+   - GStreamer development files (1.2.0 or higher)
+
+3. **Required GStreamer components**:
+   - GStreamer base library
+   - GStreamer video library
+   - GLib2
+   - GObject
+
+## Building
+
+### Quick Build (Windows)
+
+Simply run the provided batch script:
+
+```batch
+build_idsueye_only.bat
+```
+
+Or provide a custom GStreamer path:
+
+```batch
+build_idsueye_only.bat "C:\path\to\gstreamer"
+```
+
+This will:
+1. Create a `build_idsueye` directory
+2. Use the standalone IDS uEye CMakeLists configuration
+3. Configure the project with CMake
+4. Build only the IDS uEye plugin
+5. Output: `build_idsueye\sys\idsueye\Release\libgstidsueye.dll`
+
+**Default GStreamer location:** `C:\bin\gstreamer\1.0\msvc_x86_64`
+
+### Manual Build
+
+If you prefer manual control or need to customize the build:
+
+```batch
+# Create build directory
+mkdir build_idsueye
+cd build_idsueye
+
+# Configure (adjust generator as needed)
+cmake .. -G "Visual Studio 16 2019" -A x64
+
+# Build only IDS uEye target
+cmake --build . --config Release --target gstidsueye
+
+# Or for Debug build
+cmake --build . --config Debug --target gstidsueye
+```
+
+### Custom IDS uEye SDK Location
+
+If your IDS uEye SDK is installed in a non-standard location:
+
+```batch
+cmake .. -G "Visual Studio 16 2019" -A x64 -DIDSUEYE_DIR="C:\Path\To\IDS\uEye\Develop"
+```
+
+### Linux Build
+
+```bash
+mkdir build_idsueye
+cd build_idsueye
+cmake ..
+make gstidsueye
+```
+
+## Output
+
+The built plugin will be located at:
+- **Windows Release**: `build_idsueye\sys\idsueye\Release\libgstidsueye.dll`
+- **Windows Debug**: `build_idsueye\sys\idsueye\Debug\libgstidsueye.dll`
+- **Linux**: `build_idsueye/sys/idsueye/libgstidsueye.so`
+
+## Installation
+
+To install the plugin to the GStreamer plugin directory:
+
+```batch
+cmake --build . --config Release --target install
+```
+
+Or manually copy the DLL to your GStreamer plugins directory (typically `C:\gstreamer\1.0\msvc_x86_64\lib\gstreamer-1.0\`).
+
+## Troubleshooting
+
+### IDS uEye SDK Not Found
+
+If CMake cannot find the IDS uEye SDK:
+1. Verify the SDK is installed
+2. Check the installation path
+3. Set `IDSUEYE_DIR` explicitly in the CMake command
+
+### Missing Dependencies
+
+If GStreamer dependencies are not found:
+1. Ensure GStreamer and development headers are installed
+2. Add GStreamer to your system PATH
+3. Set `GSTREAMER_ROOT` environment variable if needed
+
+### Link Errors
+
+Make sure you're building for the correct architecture (x64 vs x86) matching your IDS uEye SDK installation.