YUV Viewer
View YUV and Bayer raw images (I420, NV12, Y, YUV444; TIFF/RAW Bayer) and standard images (PNG/JPG) directly inside VS Code. Includes drawing, zoom, resize, format switching, and export tools.
Features
- Open and preview raw YUV buffers: Y, I420 (YUV420 planar), NV12 (YUV420 semi-planar), YUV444
- Open and preview Bayer raw and TIFF Bayer, with bilinear demosaicing
- Open PNG/JPG images
- Draw boxes, points, and lines interactively or via precise numeric inputs
- Zoom slider, Fit-to-view, and 100% zoom controls
- Resize the rendered image to a specific width/height
- Export current canvas to PNG/JPG or re-encode and save as YUV (Y, I420, NV12, YUV444)
- Persist width/height and Bayer pattern per file; infer dimensions from filename patterns like 1920x1080
- Explorer context menu integration and Command Palette command
- YUV raw: .yuv, .nv12, .i420, .y, .yuv444, .yuv444p
- Bayer raw: .raw, .bayer, .bay
- TIFF Bayer: .tiff, .tif (auto CFAPattern detection when present)
- Standard images: .png, .jpg, .jpeg
Commands
- YUV Viewer: Open Image — opens the selected file in the viewer
Command ID: yuv-viewer.open
Defined in package.json
- Open in YUV Viewer — Explorer context menu action
Command ID: yuv-viewer.openFromExplorer
Usage
- Open a file
- Right-click a file in Explorer → Open in YUV Viewer
- Or run “YUV Viewer: Open Image” from the Command Palette
- YUV files
- Set Width and Height (or use Presets or filename inference)
- Choose Format (Y, I420, NV12, YUV444)
- Render manually or enable Auto Render
- Bayer TIFF
- Pattern (RGGB/BGGR/GRBG/GBRG), bit depth, and endianness are read when available
- Width/Height controls are hidden; changes to pattern/bit depth/endianness auto re-render
- Bayer RAW
- Provide Width and Height, select Pattern, Bit Depth (8–16), and Endianness (LE/BE)
- Click Render
- PNG/JPG
- Loads directly; use drawing, zoom, and resize tools
- Source & format selector: switch between YUV, raw Bayer, TIFF Bayer, image-jpg/png
- Drawing tools
- Auto mode: click-drag to draw a box; click to add a point
- Line mode: draw lines and see pixel-length and normalized coordinates
- Precise inputs: enter absolute pixels or normalized [0–1], choose box by size or corners
- Zoom tools: percentage slider, Fit, and 100%
- Resize tools: set target W/H and apply
- Save tools: export PNG/JPG or save YUV (Y, I420, NV12, YUV444)
- Status bar: shows Name, Format, Size, Data bytes, File size, Created time, and Dir
Bayer/TIFF Notes
- TIFF parsing reads width, height, BitsPerSample, CFAPattern, and strip offsets/lengths
- CFAPattern tag auto-maps to RGGB, BGGR, GRBG, or GBRG when present
- Bit depths 8–16 supported; endianness selectable for decoding
- Raw Bayer packed rows use 128-bit-aligned stride by default; large frames are supported
Limitations
- Basic TIFF support (uncompressed strips); compressed TIFF/complex layouts may not render
- Image format switching from the selector is restricted; reload for PNG/JPG mode
- Very large frames may render slowly depending on hardware
Extension Settings
- No user settings are contributed by this extension
Development References
License
MIT
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