Search tools

Image Luminance Moments Report

Report visible luminance mean, standard deviation, skewness, and excess kurtosis.

Image Luminance Quadrant Balance Report

Compare visible decoded-luminance means across four fixed geometric quadrants.

Image Median Noise Reducer

Reduce isolated RGB pixel outliers with a per-channel 3x3 median filter.

Image Metadata Remover

Re-encode a still image locally to omit common EXIF and container metadata.

Image Mirror Tile Effect

Build a four-quadrant reflection tile without moving output alpha.

Image Motion Blur Effect

Create a bounded horizontal sample-average trail while preserving output alpha.

Image Noise Estimate Report

Report RMS luminance residual from a local three-by-three median.

Image Normal Map Generator

Encode normalized Sobel luminance-gradient directions as an RGB normal-map PNG.

Image Oil Paint Effect

Render local colour from the most populated bounded luminance bin.

Image Opacity Adjuster

Scale every existing alpha value uniformly and export a transparency-safe PNG.

Image Ordered Dither Maker

Create a deterministic one-bit image with a repeating 4x4 Bayer threshold matrix.

Image Pencil Sketch Effect

Create a tonal line sketch from grayscale, local averaging, inversion, and bounded color dodge.