PPolySim OS
For Researchers · Image Processing Chain

Image Processing Chain for a defect rate

Built for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model. Simulate a defect rate live below — adjust the inputs and watch it respond, right in your browser.

Image Convolution / KernelsLive

Controls

Presets

3×3 kernel
-1
-1
-1
-1
8
-1
-1
-1
-1

Each output pixel is a weighted sum of its 3×3 neighborhood. Slide this kernel over an image and you get blur, sharpening, or edge maps — the exact operation a convolutional neural network learns.

▶ Run in Python

Data Inspector

KernelEdge detect
Window3×3
Smoothing sigma0.4
Sum0.00

Governing equation

Reading this result: Convolution slides the 3-tap kernel over the image; each output pixel is a weighted sum of its 3×3 neighbors. At sigma ≈ 0.4 the weights stay tightly concentrated, so edges and fine detail survive and high-frequency structure is preserved.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

Fourier Transform (FFT)Live

Controls

Build a signal from a few sine tones plus noise, and the discrete Fourier transform recovers exactly which frequencies are present — the foundation of all signal processing.

Presets

▶ Run in Python

Data Inspector

Samples256
Peaks at4, 9
TransformDFT

Governing equation

Reading this result: The FFT splits this 2-tone signal into bins: each input sinusoid at 4, 9 appears as a distinct spike, and with noise at 0 the baseline between them stays clean.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

More with Image Processing Chain

Frequently asked questions

Is this good for researchers?
Yes — this version of "Image Processing Chain for a defect rate" is framed for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.