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Create Masks with Precise Coordinate Boundaries

Generate binary masks using explicit bounding box coordinates (top, left, bottom, right). Specify exact pixel boundaries to create masks for rectangular regions. Perfect for precise masking, automation workflows, programmatic masking, or when you have coordinates from detection systems. Use with detection/segmentation outputs or when you know exact coordinates

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What it does

Image Masker by Coord creates a binary mask for a rectangular region using explicit pixel coordinates. Specify the region boundaries: top, left, bottom, right (in pixels). The tool generates a mask with the specified region highlighted (white) and everything else masked out (black). No detection or guessing—you provide exact coordinates, it masks exactly. Perfect for automation, programmatic workflows, or when coordinates come from detection models or external systems.

Problem it solves

• Precise rectangular masking – Create masks for exact rectangular regions by coordinates
• Programmatic masking – Integrate coordinates from other tools/systems
• Batch masking – Apply same coordinates to multiple images
• Detection output processing – Use bounding boxes from detection models as mask regions
• Coordinate-based extraction – Create masks when you have explicit coordinates
• Region validation – Verify specific coordinate regions visually with masks
• Multiple region masking – Create masks for multiple regions from one image
• External coordinate integration – Use coordinates from APIs, databases, or spreadsheets
• Selective AI processing – Mask exact regions for targeted AI model processing

Input/Output

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• Input: Image + Bounding Box Coordinates
  • Image Format: Any image format
  • Coordinates: Top, Left, Bottom, Right (in pixels)
    • Top: Y-coordinate of top edge (pixels from top)
    • Left: X-coordinate of left edge (pixels from left)
    • Bottom: Y-coordinate of bottom edge (pixels from top)
    • Right: X-coordinate of right edge (pixels from left)

• Output: Binary mask - PNG format
  • Format: Black/white binary mask
  • Dimensions: (Bottom - Top) × (Right - Left) pixels for masked region </aside>

How to Use

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Image mask by crood.mp4

1. Load detection → Get output from object detection model (DETR, YOLOS, etc.)
2. Select target object → Choose target object and obtain bounding box coordinates
3. Set coordinates → Upload input text box, enter Top, Left, Bottom, Right values (in pixels), and ‘Add Text’
4. Run Flow </aside>

Note: Perfect for programmatic/automation workflows, detection output processing, or when you have exact coordinates from detection models or external systems. Pixel-perfect, batch-friendly—instantly creates masks for exact regions. Coordinates must be in format: Top, Left, Bottom, Right (all pixels from image origin).