Convert UYVY to CGM

Understanding UYVY and CGM file formats

UYVY is a video pixel format commonly used for uncompressed video data. It stores color information using the YUV color space, where each pair of pixels shares chrominance (U and V) values, making it efficient for video capture and playback. UYVY files are typically raw and not directly viewable without specialized software.

CGM (Computer Graphics Metafile) is a vector graphics file format used for 2D graphics, technical illustrations, and diagrams. CGM files are platform-independent and widely used in engineering, aviation, and technical documentation for scalable graphics.

How to convert UYVY to CGM

Converting UYVY (a raw video format) to CGM (a vector graphics format) is not a direct process, as these formats serve different purposes. The typical workflow involves extracting a frame from the UYVY video, converting it to a standard image format (like PNG or BMP), and then vectorizing that image to CGM.

Step-by-step conversion process

1. Extract a frame from UYVY:
   Use FFmpeg to convert a UYVY frame to a standard image format.
   ffmpeg -f rawvideo -pixel_format uyvy422 -video_size WIDTHxHEIGHT -i input.uyvy -frames:v 1 output.png
2. Convert the image to CGM:
   Use a vectorization tool like Potrace (for black and white) or Inkscape (for color) to trace the PNG/BMP and export as CGM.
   In Inkscape: File → Import your image, Path → Trace Bitmap, then File → Save As → CGM.

Recommended software for UYVY to CGM conversion

• FFmpeg: For extracting frames from UYVY video files.
• Inkscape: For vectorizing images and exporting to CGM format.
• Potrace: For converting bitmap images to vector graphics (CGM supported via some GUIs).

Tips and considerations

• Vectorization works best with high-contrast, simple images. Complex video frames may not convert cleanly to CGM.
• CGM is ideal for diagrams and technical illustrations, not for photorealistic images.
• Always check the output in a CGM viewer to ensure quality and compatibility.