Convert UYVY to ARW

Understanding UYVY and ARW 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 chroma (U and V) values, making it efficient for video capture and processing.

ARW is a Sony RAW image file format used by Sony digital cameras. It contains minimally processed image data from the camera sensor, allowing for extensive post-processing and high image quality.

Why convert UYVY to ARW?

Converting UYVY to ARW is uncommon, as UYVY is a video format and ARW is a raw still image format. However, if you need to extract a frame from a UYVY video and save it as a Sony RAW file for advanced editing, this conversion may be necessary.

How to convert UYVY to ARW

Direct conversion from UYVY to ARW is not natively supported by most software, as ARW files require specific metadata and sensor data from Sony cameras. However, you can follow a two-step process:

1. Extract a frame from UYVY video: Use a tool like FFmpeg to extract a frame and save it as a standard image format (e.g., TIFF or PNG).
2. Convert the image to ARW: Use a RAW image editor or converter, such as Adobe DNG Converter, to convert the extracted image to a RAW format. Note that creating a true ARW file from non-Sony camera data is not possible, but you can convert to a generic RAW format like DNG for similar editing capabilities.

Recommended software for conversion

• FFmpeg: For extracting frames from UYVY video. Command example: ffmpeg -i input.uyvy -vframes 1 output.tiff
• Adobe DNG Converter: For converting standard image files to a RAW-like format (DNG).
• RawTherapee or darktable: For advanced RAW image editing and conversion.

Step-by-step conversion process

1. Open your UYVY video in FFmpeg and extract a frame: ffmpeg -i input.uyvy -vframes 1 frame.tiff
2. Open the extracted TIFF file in Adobe DNG Converter or a similar tool.
3. Convert the TIFF to DNG (as ARW is proprietary and not supported for custom creation).
4. Edit the DNG file in RawTherapee or darktable as you would with a RAW image.

Conclusion

While direct UYVY to ARW conversion is not feasible due to format differences, extracting a frame and converting it to a RAW-like format such as DNG allows for advanced editing. FFmpeg and Adobe DNG Converter are the best tools for this workflow.