gain-map

一个将 OPPO/OnePlus/realme 设备拍摄的 ProXDR HEIC 转换为 ISO 21496-1 HDR HEIC 的转换与分析工具。

Android 离线照片转码工具：JPEG / HEIC / AVIF / JXL 互转，保留 Ultra HDR / ISO 21496-1 增益图，支持批量与后台转换

Lightroom Classic plugin that merges an SDR + HDR rendition into a single UltraHDR gain-map JPEG.

Pure-Python SDR to Google Ultra HDR JPEG (gain map) converter — no libultrahdr needed. Output plays back HDR in Chrome, Android, iOS, macOS & Windows 11.

This is a fork of ShareX where I work on implmementing better solution for capturing HDR content

A python-based CLI utility for generating ISO-compliant UltraHDR JPEGs that trigger the HDR display feature in the Instagram app.

Make colors brighter than white on HDR screens, entirely in the browser.

Converts Sony HLG HEIF stills to SDR without burning the highlights, and to HDR with an ISO gain map. macOS app, free.

Python tool to convert SDR + HDR to Ultra HDR with Gainmap

An EXIF Frame Tool Supporting HDR Images

把 SDR 照片转换成 Ultra HDR (JPEG_R) 的 Android 应用

HLG / HDR PQ photos to Apple adaptive HDR (gain-map HDR): conversion library + hlg2hdr CLI

Rust crate for encoding and decoding SDR or HDR JPEG images

Find photos whose HDR gain map was lost in an editing round trip

On-device iPhone photo editor with RAW development, local object removal, and HDR gain-map editing.

Single-file local web app: convert SDR JPG/PNG photos into HDR JPEGs with a gain map (Ultra HDR style).

Convert HDR images to Apple's Adaptive HDR format.

Convert Apple HEIC photos into UltraHDR JPEG motion photos, preserving HDR and Live Photo motion

Tiny, zero-dependency local library server that serves your own folder of photos (or a macOS Photos library) to hdr.toys for HDR/gain-map editing — fully client-side.

Next Generation RAW Development