Fix: image orientation

[asabri97]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Normalize UIImage orientation across SwiftUI and UIKit example apps to ensure consistent .up orientation for inference and UI rendering.

📊 Key Changes

• Replaced CIContext-based orientation handling with UIGraphics normalization in both SwiftUI ContentView and UIKit ViewController helpers
• Early return when image is already .up to avoid unnecessary work
• Expanded unit tests for SwiftUI and UIKit to assert normalized images always have .up orientation across all orientations, including mirrored variants
• Added validations for image dimensions and non-nil results after normalization

🎯 Purpose & Impact

• Ensures consistent model inputs by removing orientation metadata ambiguity before processing
• Reduces edge-case failures when users select photos with various EXIF orientations
• Simplifies and stabilizes the orientation fix logic, improving maintainability and test coverage

[UltralyticsAssistant]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

The normalization helpers look solid; just add defer { UIGraphicsEndImageContext() } in both implementations so the graphics context is always released. Also, pruning the never-failing nil expectations in the new tests will keep the suite meaningful.

💬 Posted 4 inline comments

[UltralyticsAssistant]

💡 MEDIUM: Nice simplification! One small request: could we wrap the drawing block with defer { UIGraphicsEndImageContext() }? That guarantees the context is torn down even if we add another exit path or the draw routine starts returning early, and it keeps us safe from leaks if this helper evolves.

[UltralyticsAssistant]

💡 MEDIUM: Same feedback here—using defer { UIGraphicsEndImageContext() } around the render block would make sure the graphics context is always cleaned up, which protects us if the method later grows additional return points.

[UltralyticsAssistant]

📝 LOW: getCorrectOrientationUIImage returns a non-optional UIImage, so this nil check will never fail. Dropping the assertion keeps the test focused on behaviors that can actually break.

[UltralyticsAssistant]

📝 LOW: Same as the SwiftUI tests—since the helper returns a non-optional UIImage, this nil check cannot fail. Removing it will avoid a tautological assertion.