HDR Photo & Tone map - Mergius

HDR Photo & Tone map - Mergius

Screenshots

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Description

This app can be used to merge photos taken at different exposures into a single high density range (HDR) image. You can then use tone mapping with various tuning options to create the final image.
NOTE: If you think there's some issues with results the app is producing, send your sample input images with issue description directly to support email. I'll have a look it, and if I find issues, I'll certainly try to fix all of those. Don't use the review section for reporting issues - it has a strict character limit and doesn't allow structured replies and file/image attachments.

The app can also be used as HDR viewer - you can view Radiance HDR (.hdr) and OpenEXR (.exr) files.

Main features include
- Debevec, Robertson, and simple "Fusion" algorithms to generate HDR image
- automatic image alignment before merging into HDR
- export generated HDR file as Radiance HDR, or OpenEXR file
- tone mapping using various algorithms (Linear mapping, Reinhard, Drago, Mantiuk)
- creating tone mapped images in multiple formats, like e.g. JPEG, PNG

Developer

Roman Sisik

Developer ID: 9177152940126947746

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Recent Reviews

pura vida

v3.0

schlechte App und brutal teuer

13 May 2026

Lucas Pfaff

unklare Preislage vor Download kommuniziert. arm

Developer Response

It's free download. You can decide if you want to pay, AFTER trying the app. Additionally, there's a free trial that allows to use premium paid features for limited amount of time. Explain what you mean? Is the price not displaying? Is the text broken? Can you send screenshots of what you see directly to my email - roman@sisik.eu?

21 Mar 2026

21 Mar 2026

YellowEvoV110

v3.0

Absoluter Cashgrab Müll.

21 Jan 2026

Johannes Platzer

v3.0

the app is usable in its base version without paying, as far as I can tell. however, it is a very much wasted opportunity not to support camera raws even in the paid version. I was hoping to do some HDR from my dslm images on the go, but I was let down even by the paid version.

Developer Response

What raw format were you trying to use? The app supports some raw formats, like e.g. dng. But there are over 200 raw formats out there ( often closed/proprietary and non-standardised). I can realistically support only a small subset of those.

26 Dec 2025

26 Dec 2025

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