Issue: Legend Placement Occurs on Cropped ROI Instead of Original Image

[Huq2090]

Description
Currently, NanoPSD overlays legends (e.g., morphology labels, contour annotations) on the cropped region of interest (ROI) rather than the original full-resolution image. This leads to inconsistent visualization and reduced interpretability, especially when comparing outputs across different processing stages.

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Observed Behavior

• Image is cropped for processing (e.g., nanoparticle detection region)
• Legends and annotations are rendered directly on this cropped image
• Final saved output contains annotations only within the cropped frame

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Expected Behavior

• All legends and annotations should be placed on the original full image
• The detected ROI results should be mapped back to the original coordinate system
• Final output should preserve full image context with correctly positioned overlays

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Why This Matters

• Reduces publication-quality visualization
• Inconsistent with typical SEM/TEM analysis workflows

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Proposed Fix / Direction

• Render all annotations (contours, ellipses, legends, labels) on the original image

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Steps to Reproduce

1. Run NanoPSD on any SEM/TEM image with cropping enabled
2. Inspect output image
3. Observe legends confined to cropped region

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Impact
Medium–High (affects visualization quality and usability for publication)