JBG to UYVY Converter

Online tool — convert JBG images to UYVY free

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Scan Modernization

Modernize JBG scanned documents by converting to UYVY — widely supported by modern applications.

Privacy Guaranteed

JBG uploads are erased upon completion. UYVY results are automatically purged from servers within 24 hours.

Simple Workflow

Upload JBG, choose UYVY, download. Three simple steps — the entire process completes in under a minute.

How to convert JBG 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

JBG is a file extension for images compressed using the JBIG (Joint Bi-level Image experts Group) standard, formally ITU-T Recommendation T.82, completed in 1993 as a successor to the Group 3 and Group 4 fax compression standards. JBIG compression is designed for bi-level (black and white) images but can also handle grayscale and limited-color images by encoding each bit plane separately. The algorithm uses a form of arithmetic coding guided by an adaptive context model: for each pixel, the encoder examines a template of surrounding already-coded pixels to build a probability estimate, then feeds this estimate to a QM-coder (a variant of the Q-coder arithmetic coder) that produces a highly efficient binary output. JBIG achieves 20-40% better compression than Group 4 on typical document images, with the improvement being even larger on halftoned photographs and images with gradual density transitions where Group 4's simple run-length approach is less effective. The standard supports progressive encoding, where a low-resolution version of the image is transmitted first and progressively refined — useful for fax-like applications where the receiver can begin displaying the image before the full-resolution data arrives. One advantage is superior compression of documents containing halftone images: newspapers, magazines, and marketing materials that mix text with photographic halftones compress dramatically better with JBIG than with Group 3/4. The standard's ITU-T backing ensures it is implemented in document imaging hardware and software worldwide. JBG files are supported by ImageMagick and various document imaging tools.
Initial release: 1993
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 JBG to UYVY?

JBG files require specialized viewers. UYVY conversion makes the content accessible to standard applications.

Where can I open UYVY files?

Use raw image viewers, FFmpeg, or ImageMagick to view UYVY files.

Is fidelity maintained in JBG to UYVY conversion?

Yes — the converter reproduces your JBG content in UYVY at full fidelity. No visible quality is lost.

Is JBG to UYVY free on Convertio?

Yes, basic usage is completely free. Premium plans are available for additional speed and volume.

Can I convert several JBG files simultaneously?

Batch mode is fully supported. Add multiple JBG files and download each converted UYVY file individually.

Do I need to install any software?

No installations needed. The JBG to UYVY conversion runs entirely in your browser — nothing to download or set up.