ishihara

Computer Vision Based System to read the numbers in an Ishihara Plate test

A tiny web app that lets you create custom Ishihara-style color blindness tests—type your own text and see how subtle color choices can hide (or reveal) it to different eyes. Built with plain HTML, CSS, and JavaScript using the HTML5 Canvas API.

A Python tool for extracting hidden numbers from Ishihara color blindness test images using a custom K-means clustering algorithm. Supports multiple color spaces (RGB, HSV, Lab, YCrCb) and includes visualization, CLI tools, and parameter optimization for enhanced accuracy.

在线色觉（色盲/色弱）筛查工具：石原氏数字图、路径追踪、D15 色相排列、进阶联合、信号灯与儿童图形模式。

Open, published color-vision method (Machado 2009 + CIEDE2000, DOI 10.5281/zenodo.21310578) — 17 on-device browser vision tests, plus 30 packages on PyPI, npm and MCP so you can run the colorimetry yourself.

by team ColoRight // Ellie, Elin, Eva, and Jenny // March 9th-10th, 2024 ⛵🗺️

Browser-based bilingual (TR/EN) vision-screening app: Ishihara color, Snellen acuity, Amsler grid & contrast tests, with webcam distance gating and hands-free voice control. Vite + Vue 3. Not a medical diagnostic tool.

Platform skrining buta warna berbasis AI

color anomaly experimentation.

Extending the simple Ishihara dataset by applying color correction in the LAB color space.

Reverse Ishihara is a Python image generator that creates reverse Ishihara-style dot plates, showing a subtle plate for normal vision alongside a simulated deuteranopia or protanopia view where the hidden number becomes clearer.

An original app that hel people to know if they have color blindness

Color Vision Helper (色觉助手): a phone web app for color-blind and color-weak people. Aim the reticle to name any color and outline its region, or turn on real-time correction to tell red from green. Includes a 2-minute color-vision test. Installable PWA, runs fully on-device.

Generate pseudoisochromatic (Ishihara-style) colour vision plates. Reproducible from a seed, no dependencies, SVG out.