Convert HRZ to YUV

Understanding HRZ and YUV file formats

HRZ is a raster image file format associated with the Slow Scan Television (SSTV) system, primarily used for transmitting images over amateur radio. HRZ files are rare and typically contain low-resolution, grayscale or color images encoded for radio transmission.

YUV is a color encoding system commonly used in video processing and broadcasting. YUV files store image or video data by separating luminance (Y) from chrominance (U and V) components, making them suitable for efficient compression and color manipulation.

Why convert HRZ to YUV?

Converting HRZ to YUV is useful when you need to process, edit, or broadcast SSTV images using modern video tools or integrate them into video streams. YUV is widely supported in video editing and broadcasting software, making it a practical target format.

How to convert HRZ to YUV

Since HRZ is a niche format, direct conversion tools are limited. The best approach is to use IrfanView (with plugins) to open HRZ files and then convert them to a common format (like BMP or PNG), followed by conversion to YUV using FFmpeg.

Step 1: Open and export HRZ with IrfanView

1. Install IrfanView and its Plugins from the official website.
2. Open your HRZ file in IrfanView.
3. Go to File → Save As and choose BMP or PNG as the output format.

Step 2: Convert BMP/PNG to YUV with FFmpeg

1. Install FFmpeg from the official website.
2. Open a command prompt or terminal.
3. Run the following command:
   ffmpeg -i input.png -pix_fmt yuv420p output.yuv
4. Replace input.png with your exported file and output.yuv with your desired output name.

Recommended software for HRZ to YUV conversion

• IrfanView (with plugins) – for opening and exporting HRZ files.
• FFmpeg – for converting standard image formats to YUV.

Summary

While there is no direct HRZ to YUV converter, using IrfanView and FFmpeg in combination provides a reliable workflow for converting rare SSTV images to a widely supported video format.