# ColourWorker

> ColourWorker: colorimetric and spectral measurement with RGB images.

Canonical page: [https://chrome-stats.com/d/com.colourworker.generic](https://chrome-stats.com/d/com.colourworker.generic)

## Overview

- **ID:** `com.colourworker.generic`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Miguel Garvie
- **Category:** PRODUCTIVITY
- **Downloads:** 38
- **Version:** 88
- **Last updated:** 2026-03-26
- **First published:** 2026-03-26
- **Publisher country:** GB
- **Size:** 5.19 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.colourworker.generic)
- **Website:** [https://www.colourworker.com](https://www.colourworker.com/)
- **Privacy policy:** [https://colourworker.com/apps/colourworker/privacypolicy.html](https://colourworker.com/apps/colourworker/privacypolicy.html)

## Description

In general it is not possible to make accurate colorimetric and spectral measurements in conventional photographic images for two main reasons. First because variation in illumination spectra cannot be discounted, and second because the number of degrees of freedom in reflectance spectra is potentially much greater than the three provided by camera RGB signals. Consequently, colorimetry requires either spectrometers or multi- and hyper-spectral imaging, which are costly and inconvenient. ColourWorker uses automatic calibration and statistical modelling to improve the accuracy of color measurement in photographic images. This app implements ColourWorker technology on Android platforms with cameras that can save Raw format RGB images. It allows users to select application areas, to take a photograph with a calibration standard, and returns estimated an average  L*a*b* colorimetric value and for pixels in a defined region of the image along with a plot of the reflectance spectrum.

## Rankings

- #2,349,113 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.READ_PHONE_STATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`

## Similar extensions and apps

- [ColorWiz Cam](https://chrome-stats.com/d/us.stellarnet.colorwizcam) — 78 users
- [Color Meter - RGB RAL CMYK LAB](https://chrome-stats.com/d/com.contechity.color_meter) — 89,828 users, 4.27 / 5
- [ColorWiz Pro](https://chrome-stats.com/d/us.stellarnet.colorwizpro) — 2,861 users
- [Color Meter](https://chrome-stats.com/d/com.atinyepicstudio.colormeter) — 25,628 users
- [Colorimetre](https://chrome-stats.com/d/com.noostechnologies.colorimetre) — 1,637 users
- [Colorimeter](https://chrome-stats.com/d/com.colorimeter) — 24,697 users, 3.78 / 5
- [Real Color - IRL Eyedrop Tool](https://chrome-stats.com/d/com.madguardian.realcolor) — 2 users
- [Camera Colorimeter](https://chrome-stats.com/d/com.auralisoft.colorimeter) — 54,116 users, 2.95 / 5
- [Coloring](https://chrome-stats.com/d/com.bolshakovdenis.coloring) — 165 users
- [Datacolor LightColor Meter](https://chrome-stats.com/d/com.datacolor.lcapp) — 2,318 users
- [Color Analysis - Real time](https://chrome-stats.com/d/com.litecolorimeter) — 1,234 users
- [ColorMeter - color picker RGB](https://chrome-stats.com/d/com.vistechprojects.colormeterfree) — 220,866 users, 4.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.colourworker.generic)