# DecorrCam

> Realtime Decorrelation Stretching for Rock Art Research and other applications

Canonical page: [https://chrome-stats.com/d/com.archaeologic.decorrcam](https://chrome-stats.com/d/com.archaeologic.decorrcam)

## Overview

- **ID:** `com.archaeologic.decorrcam`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Ulrich Wölfel
- **Category:** PHOTOGRAPHY
- **Downloads:** 12
- **Version:** 2.3
- **Last updated:** 2026-01-18
- **First published:** 2024-01-18
- **Publisher country:** DE
- **Size:** 19 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.archaeologic.decorrcam)
- **Privacy policy:** [https://doc-hosting.flycricket.io/decorrcam-privacy-policy/0ec4bbb5-4033-49bf-a5d4-c7387bc45a06/privacy](https://doc-hosting.flycricket.io/decorrcam-privacy-policy/0ec4bbb5-4033-49bf-a5d4-c7387bc45a06/privacy)

## Description

The app implements the Decorrelation Stretching Algorithm used to emphasize colors in Rock Art research with a real time view in full screen. Touch the screen and a 3 second count down starts after which a screenshot will be saved. Swipe to the left and you get the normal camera view. Swipe up and you get a real time Contrast Limited Adaptive Histogram Equalization (CLAHE) view. The app is most useful in the field to detect rock art and other polychrome features.

## Rankings

- #2,781,957 — Overall

## Permissions and access

### Permissions

- `android.permission.CAMERA`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `android.permission.WRITE_INTERNAL_STORAGE`

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