GridFinium

Sample

Switch between the built-in test photos to see how the workflow responds. Uploading your own image will replace these samples.

Upload a photo to detect and outline documents automatically.

Use these sliders to guide hint-based selections toward the object you care about.

Canny low threshold

Lower values pick up faint edges. Raise this if tiny textures cause noisy selections.

Canny high threshold

Higher numbers keep only strong borders. Drop it to help latch onto small items like the coaster.

Morphology kernel size

Controls how aggressively edges are merged. Keep it small to separate nearby shapes.

Minimum contour area (%)

Ignores shapes below this percentage of the full image. Reduce it to keep petite selections.

Edge/threshold fusion

Choose how edge and threshold maps combine when building hint contours.

Paper similarity tolerance (%)

Reject hint contours whose size is within this percent of the paper outline. Raise it if the paper keeps winning.

Display paper processing steps while outlining Apply cv.erode() refinement after dilation

Adjust the dimensions of your model in inches, preview it in 3D, and export a ready-to-print STL file.

Tip: drag to rotate the model and use your scroll wheel or trackpad to zoom.