RAS to UYVY Converter

Get UYVY output from your RAS data online

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Server-Side Processing

Conversion happens entirely on Convertio's servers. Your device stays responsive while RAS data is transformed into UYVY in the cloud.

Zero Install

Run the entire RAS to UYVY conversion in your web browser. No downloads, plugins, or system requirements beyond an internet connection.

Rapid Conversion

Processing RAS to UYVY is swift — most conversions finish in moments, so you spend less time waiting and more time working.

How to convert RAS to UYVY

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose uyvy or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your uyvy file right afterwards

About formats

RAS (Sun Raster) is a raster image format developed by Sun Microsystems for their SunOS and Solaris Unix workstations, dating to approximately 1982. Sun Raster files store 2D bitmap images with support for 1-bit monochrome, 8-bit indexed color (with a color map), 24-bit true color (BGR byte order), and 32-bit XBGR (with an unused alpha byte). The format uses a 32-byte header containing a magic number (0x59a66a95), width, height, bit depth, data length, raster type (indicating compression), color map type, and color map length, followed by the optional color map data and the pixel data. RAS supports three encoding modes: standard (uncompressed, with each scanline padded to a 16-bit boundary), byte-encoded (run-length encoded using a simple escape-code scheme), and RGB (uncompressed with RGB rather than BGR byte order). Sun Raster was the native image format for Sun's window system and later the OpenWindows desktop environment, serving as the standard format for screenshots, icons, backgrounds, and application graphics on Sun workstations throughout the 1980s and 1990s. One advantage is the format's representation of Unix workstation computing heritage: Sun Raster files from the SunOS/Solaris era document the visual culture of an important computing platform that drove advances in networking, multiprocessing, and graphics workstation design. The format's straightforward structure is another practical strength — the 32-byte header and simple encoding make RAS files easy to parse and convert, even with custom code. RAS files are supported by ImageMagick, GIMP, XnView, and other image processing tools.
Developer: Sun Microsystems
Initial release: 1982
UYVY is a packed pixel format for storing images and video frames in YUV 4:2:2 chroma-subsampled color space, with the UYVY designation indicating the byte ordering within each 4-byte macropixel: U (Cb), Y0, V (Cr), Y1. Each macropixel encodes two horizontal pixels sharing a single pair of chrominance samples (U and V) but retaining individual luminance values (Y0 and Y1), achieving 2:1 horizontal chroma subsampling that reduces data size by 33% compared to full 4:4:4 YUV while maintaining full luminance resolution. The UYVY ordering is specified as a FOURCC code in Microsoft's Video for Windows and DirectShow frameworks, and is commonly used in professional video capture cards, broadcast equipment, and video processing pipelines. UYVY raw files contain no header — the pixel data is a flat sequence of U,Y,V,Y byte quadruplets, requiring external specification of image dimensions. The 4:2:2 subsampling exploits the human visual system's lower spatial resolution for color compared to brightness: the eye notices luminance detail at much higher spatial frequencies than chrominance detail, so sharing color samples between adjacent pixels produces no visible quality loss in practice. One advantage is broadcast-standard compatibility: UYVY's 4:2:2 sampling matches the chrominance structure used in professional video standards (ITU-R BT.601, SDI), making it the natural format for video capture hardware and frame-accurate processing. The format's efficient memory layout is another strength — the packed byte arrangement enables fast DMA transfers between capture hardware and system memory. UYVY data is handled by FFmpeg, ImageMagick, and professional video capture/editing software.
Developer: ITU-T / Microsoft
Initial release: 1982

Frequently Asked Questions

Why convert RAS to UYVY?

Sun Raster files date back to the SunOS era and few modern tools open them. UYVY brings your image into a widely supported format.

What programs open UYVY files?

UYVY files can be opened in YUV viewers, video processing tools, and raw video analysis software.

Does converting RAS to UYVY lose quality?

The conversion preserves the visual content of your RAS data accurately. Any differences depend on UYVY's format characteristics like compression type.

Can I convert multiple RAS data at once?

Yes — Convertio supports batch uploads. Queue several RAS inputs and convert them all to UYVY in a single session to save time.

How does Convertio protect my uploaded data?

Your RAS data is encrypted during transfer and deleted after processing. Converted UYVY outputs are purged from servers within 24 hours.

What makes UYVY a good target format?

UYVY offers YUV packed format, video processing, chroma subsampled. It gives your raw RAS data a proper structure that any image viewer or editor can handle.