SRW to AVIF Converter

What is SRW to AVIF conversion?

SRW to AVIF conversion transforms proprietary Samsung RAW files into the next-generation AVIF image format. SRW is Samsung's RAW format used by NX mirrorless cameras: the flagship NX1 (28 MP APS-C back-illuminated sensor, 2014), the compact NX500 with the same sensor, the earlier NX300 and NX30 models, the miniature NX mini, and the premium EX-series compacts (EX1, EX2F). The container is built on TIFF and holds unprocessed 12- to 14-bit sensor data requiring demosaicing for viewing.

AVIF (AV1 Image File Format) is a modern raster image format developed by the Alliance for Open Media and standardized in 2019. It uses the powerful AV1 video codec for single-image compression, achieving 50 percent better compression than JPG and 20-30 percent better than WebP at equivalent visual quality. AVIF supports transparency, HDR with 10- and 12-bit color depth, wide color gamuts (Rec. 2020), and animation.

Converting SRW to AVIF is valuable for modern web projects focused on maximum performance: photography sites, portfolios, premium online stores, and media projects with extensive visual content. A photograph from a Samsung NX1 that weighs 7-10 MB as high-quality JPG might occupy only 1.5-3 MB as AVIF at equivalent visual quality.

Samsung discontinued the NX camera line in 2016. Migrating an archive to AVIF is particularly interesting for those wanting to showcase older NX1, NX500, or EX2F photographs in modern web projects: AVIF provides excellent preservation of fine detail from the 28 MP BSI sensor while minimizing file size.

Technical comparison: SRW vs AVIF

SRW and AVIF represent two entirely different eras of digital imaging. SRW is proprietary RAW from the early 2010s; AVIF is an open web format from the late 2010s built on a cutting-edge video codec.

File size by Samsung camera model

The primary advantage of AVIF over SRW in web publishing is dramatically smaller file size at comparable quality. A 28 MP NX1 shot that occupies 40-60 MB in SRW can be as small as 1-2 MB in AVIF, opening new possibilities for fast-loading photo galleries.

Compared to JPG and WebP, AVIF produces 50 percent smaller files than JPG and 20-30 percent smaller than WebP at equivalent visual quality. AVIF is especially effective for photographs: better shadow detail preservation, fewer artifacts on gradients, cleaner edges around high-contrast subjects.

Why convert SRW to AVIF?

High-performance websites

If a project targets maximum loading speed and SEO Core Web Vitals scores, AVIF is the optimal choice. Samsung NX photographs in AVIF load 3-5x faster than as JPG, providing significant advantages in search rankings and user retention.

Premium photography sites

High-end portfolio sites, photo libraries, and premium contemporary art galleries are prime audiences for AVIF. Both maximum compactness and image quality matter here, and AVIF delivers both better than any other format.

Image-heavy projects

When pages must load hundreds of photographs (product catalogs, photo archives, aggregator sites), AVIF provides dramatic bandwidth savings. A page with 200 AVIF photos can load as quickly as a page with 50 JPG photos.

Responsive image delivery

The modern responsive image pattern using the HTML <picture> element is perfectly suited for AVIF: primary format AVIF (for the most current browsers), WebP fallback (for devices without AVIF), and final JPG fallback (for any older browsers). This provides optimal file size for every visitor.

Mobile applications and PWAs

For mobile applications and progressive web applications, AVIF minimizes data consumption and storage requirements. This is especially important for applications targeting emerging markets with limited mobile connectivity.

Technical details of the conversion process

Bayer demosaicing

Samsung NX sensors use a Bayer color filter array. The conversion algorithm interpolates the missing color channels for each pixel by analyzing neighbors. The NX1 and NX500 sensors (28 MP BSI on APS-C) feature densely packed pixels, making accurate demosaicing especially important to prevent moire patterns. The quality of this step determines how well AVIF can compress the image without visible artifacts.

White balance application

Basic conversion uses the white balance recorded by the camera in the SRW metadata. This value becomes part of the pixel data in the AVIF output.

Gamma correction and color space

The linear sensor data is converted to sRGB with the standard 2.2 gamma curve. AVIF also supports wider color gamuts (Display P3, Rec. 2020), but sRGB remains the compatibility standard for web publishing.

AVIF encoding

The final step applies the AV1 codec to the pixel data. The AV1 algorithm uses advanced compression techniques: block-adaptive prediction, intra-prediction with many directions, efficient inter-pixel prediction, sophisticated quantization. For still images this delivers revolutionary improvements over JPEG or even WebP.

Which SRW photos benefit most from AVIF conversion

High-quality photographs for web publishing

Any Samsung NX photograph requiring maximum compactness with preserved quality is an ideal AVIF candidate. This includes landscapes, portraits, reportage - anything that must load quickly while looking excellent.

Photos with subtle gradients

AVIF handles smooth tonal transitions better than other formats: skies, blurred backgrounds, soft lighting. Where JPEG shows banding at high compression, AVIF maintains gradients cleanly.

Images with sharp contrast edges

AVIF produces fewer ringing halos around high-contrast edges than JPEG. This is important for photographs with clear silhouettes against uniform backgrounds (portraits on white, product photography), typical of Samsung NX studio work.

Highly detailed photographs

The 28 MP sensors in Samsung NX1 and NX500 capture enormous amounts of fine detail. AVIF preserves fine textures (fabric, foliage, hair) better than JPEG at the same compression level, especially valuable for commercial and portrait photography.

Advantages of AVIF for Samsung NX photographs

The most efficient compression of any web format

AVIF uses the AV1 video codec developed by a consortium of major technology companies. This delivers images 50 percent smaller than JPEG and 20-30 percent smaller than WebP at equivalent visual quality. For 28 MP Samsung NX1 photos, the savings can amount to 5-10 MB per file.

HDR and wide color gamut support

AVIF natively supports 10- and 12-bit color depth as well as the extended Display P3 and Rec. 2020 color spaces. This enables better preservation of the Samsung NX1's tonal range (up to 13.2 EV) when exporting for modern HDR displays.

Alpha channel

AVIF supports transparency, like PNG and WebP. This is useful for design tasks with masked areas on photographic foundations.

Fewer compression artifacts

When comparing the same photograph in AVIF and JPG at the same file size, AVIF looks noticeably cleaner: less blocking, fewer ringing halos around contrasty edges, better preservation of fine detail.

Full EXIF support

AVIF correctly preserves standard EXIF: camera model, lens, capture date, shutter speed, aperture, ISO, focal length, GPS coordinates. This enables continued photo cataloging in organizers after conversion.

Limitations and important considerations

Not all browsers support AVIF

AVIF is supported by Chrome (since 2020), Firefox (since 2021), Edge (since 2021), and Safari (since macOS Ventura 13 and iOS 16 in 2022). Older versions of these browsers and discontinued alternative browsers may not render AVIF. For full compatibility, use a fallback strategy with WebP or JPG.

Slower decoding on weaker devices

The AV1 codec requires more computational resources to decode than JPEG. On older smartphones and underpowered laptops, AVIF decoding may be noticeably slower. For most modern devices this is not an issue, but it is worth considering when optimizing for mass audiences.

Limited graphic editor support

Adobe Photoshop supports AVIF via plugin or from version 2023 onward. Affinity Photo and GIMP have been adding support gradually. However, many older editors and professional print production systems do not yet handle AVIF, limiting use beyond the web.

Social media and messaging

Most social media and messaging platforms do not yet support AVIF uploads. If publishing to Instagram, Facebook, or other platforms is planned, use JPG or WebP. AVIF is optimal specifically for your own web projects.

Basic decoding limitations

This service performs basic SRW decoding with default processing parameters: the white balance recorded by the camera is applied, standard sRGB gamma correction is used, and Bayer demosaicing runs automatically. Manual white balance adjustment, exposure compensation, highlight and shadow recovery, tone curves, noise reduction, and Samsung Picture Wizard profile application are not available through this converter. For full RAW processing with control over all parameters, use Adobe Lightroom, Capture One, RawTherapee, or ON1 Photo RAW.

Always preserve SRW originals

AVIF is a final web publishing format, not an archive format. Lossy AVIF irreversibly discards data; lossless AVIF preserves pixels but already contains baked-in white balance and tonal curve decisions. SRW originals retain reprocessing flexibility for the future, especially important for discontinued Samsung NX cameras. Keep SRW backups on separate storage even after AVIF conversion.

Samsung NX and AVIF: practical context

Samsung NX1 and NX500 cameras have 28 MP BSI-CMOS sensors with 6480x4320 pixel resolution. In AVIF at quality 60, this produces files of 0.8-2.5 MB - 20-50x more compact than SRW and 50 percent smaller than high-quality JPG. NX300 and NX30 (20 MP) produce 0.6-1.8 MB AVIF files; EX-series (12 MP) yields 0.3-1 MB files.

When publishing a Samsung NX portfolio in AVIF, a page with 30-50 photographs loads as quickly as a page with 5-10 JPG photos. This delivers radical improvements in user experience and SEO metrics.

An important clarification: Samsung Galaxy smartphones do not produce SRW files. In Pro Mode they save RAW as DNG (Adobe's open standard). SRW appears only in files from NX and EX-series cameras, both discontinued in 2016.