Flatten & Deskew
Photographed or scanned a design at an angle? Mark the four corners and we perspective-correct it into a straight, flat rectangle — ready for tracing, tiling, or print prep.
What is deskew and perspective correction?
When you photograph or scan a flat design — a swatch, a sketch, a printed page — it almost never comes out perfectly square. The camera sits at an angle, so the rectangle looks like a trapezoid: edges tilt, corners stretch, and parallel lines converge. Deskew fixes the rotation; perspective correction goes further and removes that keystone distortion entirely, mapping the slanted shape back onto a true rectangle.
This tool does both in one step. You mark the four real corners of the artwork inside the photo, and it solves the homography — the projective transform — that warps that quadrilateral onto a clean, straight-edged image. Every output pixel is resampled with bilinear interpolation through the inverse map, so there are no holes or jagged edges. The result is a flattened, head-on view that behaves like it was scanned flat to begin with. From there it is far easier to vectorize the artwork, tile it into a seamless repeat, or send it to print. If the source is a low-resolution phone snap, run the straightened file through our AI Image Upscaler afterwards to recover the resolution print work needs.
Quick straighten vs the full Studio
The straightener here uses the same perspective engine the Texloom Studio runs. Signing up unlocks the full Studio: the corrected image flows straight into upscaling, vectorizing, seamless tiling, and the rest of the suite without re-uploading.
Quick Straighten
No signupInstant, private, nothing uploaded.
- Four-corner perspective correction
- Drag-to-mark guide quad with live preview
- Bilinear resampling — clean output with no gaps
- Auto-sized straight rectangle from your marks
- Before / after slider to verify the result
- No watermarks, full PNG output, commercial use
Texloom Studio
ProSignup unlocks the full Studio — no card.
- Everything in Quick Straighten, plus:
- Result flows straight into 40+ tools — no re-upload
- One global canvas shared across every tool
- Upscale, vectorize, and tile the flattened design
- Cloud-synced projects you can return to
- Higher source caps for large scans
What people straighten with it
Straighten a photographed fabric swatch
Shot a swatch on a table at an angle? Mark the four corners of the fabric and the tool warps the slanted view into a square, head-on image. The weave runs straight again, so motifs measure true and the swatch is ready to tile or color-match instead of fighting a tilted reference.
Deskew a scanned sketch or artwork
Scans drift — paper shifts on the glass and the design comes out rotated a few degrees with skewed edges. Drop the scan in, snap the handles to the artwork's real corners, and it straightens cleanly. From there you can vectorize the linework without inheriting the tilt.
Perspective-correct a phone photo of a print
A quick phone snap of a wall hanging, poster, or printed textile always keystones — the top looks narrower than the bottom. Marking the four corners removes that perspective entirely, flattening it into a rectangle you can crop, measure, or reproduce as if it were captured straight on.
Flatten a document or page for clean reproduction
Capturing a page held in your hand, a notebook, or a book spread leaves curved, slanted edges. Mark the corners of the page and the tool produces a flat, straight-edged scan-style result — far more legible and far easier to print or archive than the angled original.
Square up artwork before making a seamless repeat
A repeat only tiles cleanly if the source tile is a true rectangle. Straightening a photographed motif first means the edges line up when you tile it, eliminating the seams and drift that a skewed source bakes in. Flatten here, then build the repeat.
Recover usable art from an old angled photo
Archive shots of vintage patterns and sample books are often the only record, and they are rarely shot square. Perspective-correcting them turns a casual reference photo into a flat, reproducible asset. Pair it with the AI Texture Remover if scan texture or moiré is in the way.
Reach for it when the source is off-square
Rotated scans
Paper shifted on the scanner glass and the whole design came out at a few degrees of rotation.
Angled photos
Shot from above or to one side, so the rectangle keystones into a trapezoid with converging edges.
Pre-production cleanup
Before tracing, tiling, color-matching, or print — anywhere a true head-on rectangle is required.
Four steps, under a minute
Upload your photo
Drop any JPG, PNG, WEBP, or TIFF of your design — a fabric swatch, a sketch, a scanned page, or a phone photo of a print.
Mark the four corners
Drag each handle onto a true corner of the artwork. The cyan guide quad shows exactly the area that gets straightened.
Flatten the perspective
We solve the perspective transform from your four marks and warp the slanted shape into a clean, straight rectangle.
Compare and download
Slide the before / after divider to verify the correction, then download a lossless PNG of the flattened design.
Built for production work
Most straighteners only rotate. Ours removes full keystone perspective and hands you a clean rectangle.
True perspective correction
Solves the full homography from your four marks — not just a rotation. Keystone distortion is removed completely.
Clean, gapless resampling
Inverse mapping with bilinear interpolation fills every output pixel — no gaps, no jagged edges.
No watermarks, ever
Every output is clean — no logos, overlays, or hidden marks. Yours to use commercially.
Part of a full suite
Straighten here, then upscale, vectorize, or tile — the same design tools production teams rely on.
Frequently asked
Q.What is the difference between deskew and perspective correction?
Q.How do I straighten a photographed or scanned design?
Q.Does it crop or distort my design?
Q.What file types are supported?
Q.Is there a resolution limit?
Q.Is my uploaded image private?
Q.Can I use the flattened image commercially?
Straightened your design? Sign up to keep going — the full Studio and 40+ pro tools, no card.
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