PanHandler vs Image FFT

PROFESSIONAL MEASUREMENTS WITH JUST YOUR PHONE AND A COIN Transform your iPhone into a CAD-grade measurement tool. No expensive lasers, no subscriptions - just your camera and a coin from your pocket. WHAT YOU CAN MEASURE - Distance - Straight-line measurements between any two points - Angles - Three-point angle measurements with azimuth bearing - Circles - Radius, diameter, area, circumference, and volume - Rectangles - Length, width, area, and volume calculations - Freehand - Trace custom shapes for area and volume POWERFUL CALIBRATION OPTIONS 650+ Coins Supported - From over 130 countries worldwide. Quarter, penny, euro, yen - if you have it, we support it. Known Scale Mode - Perfect for aerial photos, blueprints, floor plans, and engineering drawings. Measure a known distance and enter its real-world size. Verbal Scale Mode - Ideal for maps with scale notation. Enter scales like "1 inch = 10 miles" or "1 cm = 100 meters" and PanHandler calculates everything automatically. HOW IT WORKS 1. Take a Photo - Hold your camera perpendicular to the subject using the built-in bubble level 2. Calibrate with a Coin - Search for your coin, place it in the photo, and align the circle 3. Measure Anything - Choose your tool, tap to place points, get instant measurements 4. Export & Share - Email reports or save annotated photos to your library PROFESSIONAL FEATURES - Auto-Level Capture - Hold steady for automatic capture - Session Memory - Calibration remembered throughout your session - Email Reports - Professionally formatted measurement reports - High-Quality Exports - Save annotated photos to your library - Custom Labels - Name and organize your measurements FROM A CAN OF COKE TO AN OCEAN Calculate volumes from tiny objects to massive spaces. Draw freehand lines, distance lines, squares, circles, and polygons - all displaying precise area measurements. Whether you're a contractor measuring job sites, a DIY enthusiast planning projects, an engineer reviewing blueprints, or a student learning CAD, PanHandler gives you professional-grade measurements without professional-grade costs. COMPLETELY FREE - No subscriptions - No in-app purchases - No feature limitations - Unlimited measurements and exports - All tools included Built by makers, for makers. Created by Snail, a 3D designer on a mission to make CAD designing faster, easier, and more accurate for everyone. PERFECT FOR - CAD design reference photos - Contractors & builders - Engineers & architects - DIY enthusiasts - Real estate professionals - Interior designers - Students & educators - Anyone who needs to measure things Start measuring professionally today - no hardware required.

Run a 2D Fast Fourier Transform on your camera feed, or on photos loaded from your camera roll. - Adjustable thresholds: Adjust the low and high threshold levels with sliders at the top of the screen - Adjustable resolution: Choose from Low (128²), Medium (256²), or High (512²). - Save the FFT output side-by-side with the processed image. This app is 100% offline, and processes no data in the cloud.