Chesapeake Times, Vol 21 | April 2025
The latest SonarWiz 8.3 release introduces a powerful enhancement aimed at streamlining post-processing and improving the clarity of sonar data interpretation: the integration of the Color Window directly into the Digitizer Window. Previously only accessible from the Map View, the Color Window is now available during the digitizing process itself—ushering in a more fluid and efficient workflow for sidescan, sub-bottom, and bathymetry data processing.
This addition may seem small on the surface, but its impact is significant. By bringing advanced color palette controls into the digitizing environment, users can now customize their visual analysis of sonar profiles in real time. Whether analyzing a sidescan image for seafloor features, interpreting sub-bottom data for geological layers, or reviewing bathymetry surfaces for terrain variations, the ability to view and adjust color schemes on-the-fly provides deeper insight and saves valuable time.
The Color Window in SonarWiz is a robust visualization tool that allows users to apply a variety of color palettes to sonar data. From subtle greyscale options to vibrant color gradients, these palettes help reveal features that may not be immediately visible in standard views. By adjusting contrast, brightness, and dynamic range settings, users can highlight faint returns, identify structure outlines, define sediment layers, or enhance terrain features in bathymetry data.
Colorization is especially powerful when dealing with low-amplitude signals or subtle anomalies that are easily missed in uniform grey tones. With the Color Window, even minute differences in signal strength or elevation become visible, allowing users to confidently identify targets or geological transitions with greater precision.
The integration of the Color Window into the Digitizer Window means users no longer need to toggle between views to adjust and verify their color settings. Instead, everything is accessible in one streamlined interface. This update offers several key benefits:
- Immediate Visual Feedback: Adjust color palettes while digitizing, ensuring features are traced with maximum clarity—whether it’s a submerged object, a stratigraphic reflector, or a seafloor depression.
- Reduced Workflow Interruptions: No need to switch to Map View to change settings or confirm interpretations—users stay focused and efficient within the digitizer.
- More Confident Interpretations: Enhanced colorization reveals features that may be indistinct in raw greyscale or default views, reducing errors and improving the quality of digitized features.
- Customizable Visualization: Choose from a variety of palettes—whether you prefer a classic greyscale for sidescan, bright spectral colors for highlighting sub-bottom reflectors, or terrain-enhanced palettes for bathymetry.
For sidescan users, colorized views are invaluable in identifying and classifying seabed objects, distinguishing between different substrate types, or delineating debris fields. In sub-bottom profiling, color palettes can dramatically improve the detection of faint reflectors, buried features, or subtle stratigraphic transitions. For bathymetry workflows, color can emphasize elevation changes, reveal underwater features like channels or ridges, and assist in terrain modeling. For example, a hydrographer processing bathymetric data can apply a terrain palette to highlight subtle slope variations in a dredging area. A marine archaeologist digitizing a wreck site can enhance reflectivity in sidescan. A geologist tracing sediment layers in sub-bottom profiles can switch to a color scheme that better differentiates between weak and strong reflectors—all without leaving the digitizing workspace.
The benefits of the Color Window extend beyond data interpretation—they also play a key role in the quality and clarity of exported products, especially for GeoTIFFs. With the ability to select color palettes during digitization, users can tailor how sonar data is visually represented in exported imagery. For deliverables like GeoTIFFs, which are often used in GIS systems or shared with clients and collaborators, colorized outputs provide immediate visual context. Whether it’s a terrain-shaded bathymetry map, a color-enhanced sub-bottom profile, or a classified sidescan mosaic, the use of effective color schemes helps viewers quickly understand the data without needing to dive into raw sonar values. This is especially useful in stakeholder presentations, environmental reports, and planning documents where clear, professional visualizations are critical. By customizing colors during the digitizing process, users can ensure their exports look polished and communicate key features clearly—no additional post-export
editing required.
The addition of the Color Window to the Digitizer Window reflects SonarWiz’s broader commitment to user-focused design. By bringing essential tools into the workflow where they’re needed most, SonarWiz reduces unnecessary steps, allowing users to stay in the zone. In fast-paced survey environments, efficiency is everything. Having real-time access to enhanced visual tools ensures that analysts can move quickly from data collection to interpretation without sacrificing accuracy. It also shortens the learning curve for new users, who benefit from more intuitive, visual data feedback during digitizing tasks.
With the release of SonarWiz 8.3, the Color Window becomes a central part of the digitizing process—empowering users to interpret and process sonar data with greater clarity and efficiency. Whether you’re working with sidescan imagery, sub-bottom profiles, or bathymetric surfaces, the ability to customize and apply color palettes during digitization represents a major step forward in post-processing workflows. As with many features in SonarWiz, this update was inspired by real-world user feedback and reflects the evolving needs of the sonar processing community. It’s not just about color—it’s about seeing more, working smarter, and producing better results.