Precise before/after comparisons
for clinical documentation
Manual comparisons slow clinical workflows
General-purpose tools were not designed for the precision and consistency clinical documentation requires
Manual arrangement wastes clinical time
Placing images side by side in document editors or presentation tools requires repetitive resizing, cropping, and alignment for every patient visit.
Inconsistent framing obscures changes
Without standardized positioning, subtle treatment outcomes become difficult to identify. Variations in angle and zoom between sessions reduce documentation reliability.
Comparison settings are lost between sessions
General-purpose tools do not retain the zoom, crop, or positioning configuration used in previous comparisons, requiring setup from scratch each time.
Comparison tools built for clinical precision
Purpose-built split and overlay views with automatic alignment and persistent configuration
Part of a complete clinical imaging platform
Comparison tools are one part of the Dermi Atlas platform, which includes patient management, clinical notes, export capabilities, and more.
Purpose-built comparison interface
See how split and overlay comparison tools work in Dermi Atlas
Image comparison groups
Organize chronological images into comparison groups with drag-and-drop ordering, numbered indicators, and persistent layout configuration.
Overlay layer management
Control visibility and opacity for each image layer independently with precision sliders for detailed before and after comparison.
Comparison features in detail
Explore the tools that make clinical image comparison efficient and reproducible
Split Comparisons
Place multiple images in flexible grid, vertical, or horizontal layouts with optional automatic alignment for precise feature-to-feature assessment.
Illustrative demo with synthetic data. Learn more
- Automatic alignment registers images for precise feature-to-feature comparisons
- Multiple layout options: grid view, vertical, or horizontal
- Adjustable image ordering for optimal clinical presentation
- Side-by-side viewing of treatment progression
- Comparison captions for documentation context
- Export comparisons as JPEG images
- All layout configurations persist automatically
Overlay Comparisons
Stack images with independent opacity and positioning controls, with optional automatic alignment for tracking subtle changes between visits.
Illustrative demo with synthetic data. Learn more
- Independent opacity adjustment for each image layer
- Automatic alignment with precise positioning controls for feature registration
- Visual stacking order management
- Ideal for tracking subtle changes over time
- All adjustments persist automatically
- Export overlay comparisons as JPEG
Live Pointer
Ephemeral annotation tool for highlighting areas of interest during patient consultations without permanently modifying the underlying images.
Illustrative demo with synthetic data. Learn more
- Draw directly on images and comparisons to highlight areas of interest
- Annotations fade automatically within seconds, leaving records unmodified
- Designed for patient-facing presentations on shared screens and projectors
- Available in all viewing modes: single image, split, and overlay comparisons
- Compatible with touch and pointer input across all device types
- High-visibility red glow for clear annotation on clinical imagery
Export Capabilities
Generate professional reports and exports suitable for referrals, patient education, and clinical documentation.
Illustrative demo with synthetic data. Learn more
- Individual image downloads in original format
- Comparison exports as JPEG
- Entry PDFs with all content formatted for letter-size printing
- Image Pool PDFs with chronological organization
- Patient detail PDFs for referrals
- Complete patient reports combining all documentation
- All exports logged based on your configuration
Common questions about comparisons
How split views, overlays, and automatic alignment work in Dermi Atlas
Dermi Atlas supports two primary comparison modes. Split comparisons display images in grid, vertical, or horizontal arrangements for side-by-side analysis. Overlay comparisons stack images with independent opacity controls for each layer, enabling detailed assessment of subtle changes. Both modes support automatic alignment.
Automatic alignment uses computer vision to detect matching anatomical features across images and compute optimal spatial transformations. This replaces manual drag-and-position workflows, ensuring consistent framing regardless of minor differences in camera angle or patient positioning between visits.
All comparison configurations persist automatically. Image positioning, layout type, opacity levels, ordering, and alignment state are saved without manual intervention. Returning to a comparison restores the exact configuration from the previous session.
Comparisons can be exported as standalone JPEG images or included within formatted PDF reports. Entry-level exports contain all comparisons, clinical notes, and tags in a letter-sized PDF suitable for printing, referrals, or EMR integration.
Alignment processing runs entirely on-premises through the Atlas Vision service container. No patient images are transmitted to external services. The feature operates fully within the local network after initial deployment.
Need more details?
Our support team can answer specific questions about comparison features and clinical workflows.
Explore the full comparison toolkit
Discover how split views, overlay modes, and automatic alignment work together in Dermi Atlas Professional.
Resources and further reading
Documentation and articles about comparison tools in Dermi Atlas
Try Dermi Atlas Today
Start with Dermi Atlas Cloud for free, or deploy Dermi Atlas Professional on your infrastructure with a 30-day trial.
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Dermi Atlas Professional
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Learn more about Atlas Professional features, explore Atlas Manager for deployment and infrastructure management, or speak with our team about your practice needs
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Synthetic Data Notice
All demonstrations, screenshots, and media on this page use synthetic data only. No real patient information is shown.
The following are synthetic and do not correspond to real patients:
- All human faces and individuals are synthetic and do not represent real people
- All clinical and medical images, including photographs and scans, are synthetic or simulated
- All patient names, dates, identifiers, and other details are fictional
- All clinical notes and documentation are sample content for demonstration only
Media is provided solely to illustrate platform functionality and workflows.