39 lines
2.5 KiB
Markdown
39 lines
2.5 KiB
Markdown
# Composition Examples
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Composition modes control how the saliency map is rendered back onto the original image. This is where the artistic intent lives.
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> model: vgg16 · method: Guided IG · colormap: magma · intensity: 0.75 · contrast: 1.5 · threshold: 0.25 · class_index: -1 · input_size: 224 · use_smoothgrad: true · smoothgrad_samples: 25 · **composition: varies**
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| Mode | Effect |
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|------|--------|
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| **isolation** | Salient regions in full colormap color; everything else greyscale. The machine's gaze burns in color while what it ignores fades away. The default — most direct visual commentary on algorithmic attention. |
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| **overlay** | Classic heatmap alpha-blend over the original. Familiar and readable, less subversive. |
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| **spotlight** | Salient regions bright, everything else darkened dramatically. Feels like a searchlight or surveillance camera — forensic, clinical. |
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| **ghost** | Original fades to 25% opacity, saliency map glows over it. Subject becomes spectral, haunted by its own classification. |
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| **invert** | Shows what the algorithm *ignores* instead of what it sees. The most subversive mode — visualizes blind spots, the parts of a face invisible to the machine. |
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| **cutout** | Hard binary mask. Pixels above threshold show the original; below shows a dim heatmap. The subject literally cut out by the algorithm's attention boundary. |
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| **multiply** | Photoshop-style multiply blend. Ignored regions sink into shadow. Dark and moody. |
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| **screen** | Photoshop-style screen blend. Salient regions glow brighter. Lighter and more luminous than multiply. |
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| **triptych** | Three panels side by side: original · saliency map · composite. Full chain of the visualization in one frame. Gallery-ready. |
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| **mask_only** | Just the colored saliency map, no original. Pure algorithmic output, no human context. |
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| **pure_white** | Black background, saliency values mapped to white intensity. Like an x-ray or photogram — the raw shape of what the algorithm attended to, stripped of all color and context. |
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**cutout** 
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**ghost** 
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**invert** 
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**isolation** 
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**mask_only** 
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**multiply** 
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**overlay** 
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**pure_white** 
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**screen** 
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**triptych**  |