Advanced Ellipse Detection Platform

Professional ellipse analysis with camera distortion correction

Detection Parameters

Image Upload

Click to upload or drag and drop
Supports JPG, PNG, TIFF formats

Detection Precision

Precision Level

Ellipse Fitting Parameters

Detect black ellipses on white background

Min Threshold

Max Threshold

Step

Number of Rays

Edge Size (px)

Edge Refinement Iterations

Min Area (px²)

Max Area (px²)

Min Inertia Ratio

Min Distance (px)

Max RMSE

Min Contrast

Min Normalized CC

Camera Calibration Enable

Enter your camera's calibration parameters for distortion correction.

Camera Matrix

fx (focal length X)

fy (focal length Y)

cx (principal point X)

cy (principal point Y)

Distortion Coefficients

k1 (radial)

k2 (radial)

p1 (tangential)

p2 (tangential)

k3 (radial, optional)

CSV Export Fields

x (center X) y (center Y) a_original (A from ellipse_array_1) b_original (B from ellipse_array_1) a_major_axis (R1 from ellipse_array_2) b_minor_axis (R2 from ellipse_array_2) alpha_orientation_angle (orientation angle, radians) psi_phase_shift (phase shift, radians) area rmse contrast normalized_cc brightness x_undistorted y_undistorted

Select which ellipse attributes to include in the CSV download.

Ellipse Analysis Results

Ellipse Detection Results

Upload an image and click "Detect Ellipses & Analyze" to see results.

Download Results

Choose your preferred data format for download:

Enter your email to download. Check/uncheck fields above and click "Apply" to update the display.