CameraAlign APK

CameraAlign – Detailed Description

Overview

• CameraAlign is a specialized mobile application designed to assist users in precisely matching a camera’s position and angle with a previously taken photograph.

• It achieves this by displaying a semitransparent overlay of the chosen image on top of the live camera preview.

• This feature makes it possible to position the phone in exactly the same spot and orientation as the original shot, ensuring consistency for projects that require alignment or repeat photography.

Core Functionality

• Displays a translucent version of a selected image directly on the camera preview.

• Enables real-time visual alignment between past and current scenes.

• Useful for replicating photographs, conducting experiments, or achieving consistent framing in time-lapse work.

Version 2.0 Enhancements

• Introduced zoom control via a seek bar in the image preview.

• The zoom level selected by the user is stored in the image’s EXIF metadata when a picture is saved.

• When reopening an image that includes stored zoom information, the app automatically restores the image preview to the saved zoom level.

• This feature improves precision and repeatability when working with reference images.

Version 3.0 Features

• Added the ability to select a specific color in either the live camera view or a saved image and make that color transparent.

• This transparency control enables green screen or chroma key–style effects, allowing for creative image overlays and background substitution.

Practical Applications

• Personal use for aligning antennas for software-defined radio setups.

• Can also support other uses such as scientific documentation, construction monitoring, or image comparison over time.

Privacy and Licensing

• Contains no advertisements or in-app purchases.

• Collects no user data.

• Source code is freely available on GitHub at: https://github.com/JS-HobbySoft/CameraAlign

• Licensed under the terms of the AGPL-3.0-or-later open source license.

Additional Details

• The app icon was created using the Stable Diffusion image generation tool.

• CameraAlign provides a focused, privacy-friendly solution for image alignment and creative photographic work.

FAQ

Q: How does the overlay feature work?

A: The app lets you pick an existing image, then displays it semi‑transparently on top of the live camera preview. As you move your phone around, you can align objects in the scene until everything lines up perfectly with the reference image.

Q: Why would someone use CameraAlign?

A: It’s useful anytime you need to take the same shot more than once, like documenting changes in a construction site, capturing time‑lapse progress, reproducing a creative photo idea, or running visual experiments where consistency matters.

Q: Do I need any special equipment to use it?

A: No extra gear is required. All you need is your phone’s built‑in camera. A tripod might help if you’re going for ultra‑precise alignment, but it’s completely optional.

Version History

v3.4——28 Oct 2025

Align your phone with a previously taken photo Download the latest version of CameraAlign 3.4 to enjoy new features and updates immediately!

*3.4

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*3.3

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*3.2

Add Chinese-Simplified Translation

Add error checking during background image loading. If background image can't be loaded, use the default image.