GradCAM++ implementation for SegFormer (Landsat dataset)#5

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samrat-rm wants to merge 7 commits intoOrion-AI-Lab:mainfrom

samrat-rm:feat/explainability_grad_cam

Commits on Mar 15, 2026

add get_gradcam_target_layer helper for GradCAM++
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Adding imports and Add SegmentationTarget class to convert segmentation outputs to scalar
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Implement GradCAM++ visualization for cloud detection model explainability with 2x2 grid layout (3 bands + heatmap)
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Add GradCAM++ configuration parameters to landsat dataset config
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rearrange the bands in features parameter for landsat dataset config
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Reduced num_classes from 3 to 2 to ensure Grad-CAM works correctly and to simplify interpretation of the activation maps.
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CHORE: removing comment and changing gradcam_dir variable
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