OpenEnlarge v0.5.3-alpha.1

Download the installer for your OS below. See the README for install notes.

OpenEnlarge 0.5.2

OpenEnlarge 0.5.2

Color-head white balance, perceptual saturation, a smarter eraser, and better roll tools.

New

• Color head white balance — a subtractive, density-multiply WB mode that mimics an enlarger's CMY color head (now the default for new images), alongside the existing gain mode.
• Perceptual saturation — saturation now works in OKLab with neutral/skin protection and gentle gamut roll-off, so boosts stay clean and skin tones hold.
• Smarter eraser — heal spots get on-image markers you can tap to select and double-tap (or Delete) to remove; a new "Show heal spots" toggle; faster two-stage healing with a cached auto-dust buffer.
• Auto exposure — images get an auto exposure on first develop entry, and you can auto-brighten the whole roll (each frame solved on its own).
• Apply-settings picker — a Lightroom-style dialog to choose exactly which groups (Tone & Color, Crop, Film base, Exposure, White point) to paste between frames or sync to the whole roll. It now also appears for single-frame pastes.
• Export overwrite prompt — when an output file already exists, export now asks first (Overwrite / Skip / Keep both / Cancel), with "apply to all remaining" so a big batch is one decision.

Improvements

• Faster export — the full-res encode/pack/readback/TIFF passes are now parallelized, the full-res decode is cached, and a wasteful EXIF re-read is skipped for PNG/JPEG.
• Uniform, left-aligned, aspect-adaptive contact-sheet tiles in the Roll view.

Fixes

• Exposure no longer shifts color temperature (the ±5 EV hue drift).
• Eraser: pointer cursor over heal-spot markers, and no re-bake/toast when toggling "Show heal spots".

Downloads

• macOS (Apple Silicon): .dmg
• Windows: .exe / .msi
• Linux: .AppImage / .deb / .rpm

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中文

OpenEnlarge 0.5.2

彩色头白平衡、感知饱和度、更智能的橡皮擦，以及更好用的整卷工具。

新增

• 彩色头白平衡 — 新增减色（密度相乘）白平衡模式，模拟放大机的 CMY 彩色头（现为新图像的默认模式），与原有的增益模式并存。
• 感知饱和度 — 饱和度现在在 OKLab 空间中处理，带有中性色/肤色保护与平滑的色域滚降，提升更干净、肤色更稳。
• 更智能的橡皮擦 — 修复点在图像上显示标记，可点按选中、双击（或 Delete）删除；新增"显示修复点"开关；采用带缓存的自动除尘缓冲的两段式修复，速度更快。
• 自动曝光 — 图像首次进入显影时自动曝光，并可对整卷自动调亮（每张独立计算）。
• 应用设置选择器 — 类似 Lightroom 的对话框，可精确选择要在帧间粘贴或同步到整卷的设置组（色调与颜色、裁切、片基、曝光、白点）。现在单张粘贴时也会出现。
• 导出覆盖提示 — 当输出文件已存在时，导出会先询问（覆盖 / 跳过 / 两者都保留 / 取消），并提供"应用于其余所有冲突"，让大批量导出只需一次决定。

改进

• 导出更快 — 全分辨率的编码/打包/回读/TIFF 处理已并行化，全分辨率解码会缓存，并跳过 PNG/JPEG 多余的 EXIF 回读。
• 整卷视图中的印样格更统一、左对齐，并自适应画幅比例。

修复

• 曝光不再改变色温（±5 EV 的色相偏移）。
• 橡皮擦：悬停修复点标记时显示指针光标；切换"显示修复点"时不再重新烘焙或弹出提示。

下载

• macOS（Apple 芯片）： .dmg
• Windows： .exe / .msi
• Linux： .AppImage / .deb / .rpm

OpenEnlarge 0.5.1

OpenEnlarge 0.5.1

A big update to the look — a new filmic rendering pipeline gives true whites, richer contrast, and recovered highlight & shadow detail — plus Canon CR2 / Olympus ORF import and a redesigned exposure control.

New

• Canon CR2 and Olympus ORF raw import
• Brightness/Density slider and a smarter, Lightroom-style Auto White Balance
• Rebindable keyboard shortcuts — hold a key and tap ←/→ to adjust, with on-screen hints
• Export resolution — custom longest-side / resolution selector
• Undo/redo toast that names the control you changed
• China-friendly in-app updater (R2 mirror) and a website blog page

Improvements

• Tonal overhaul: new filmic rendering — true whites, more contrast/punch, and highlight + shadow detail that previously looked pale, flat, and crushed
• Highlight-preserving exposure: the ±5 slider no longer dead-zones past +3, and pulling down darkens the scene while keeping highlights bright
• Brighter, better-calibrated default exposure
• Faster exports and live contact-sheet thumbnails
• Library thumbnails auto-refresh to the latest look as you browse

Fixes

• Launch crash caused by a half-applied catalog migration
• White-balance consistency — gray-point picker, and the pink cast after crop re-analysis
• Hi-res zoom black frame; AutoDust seam vs Photoshop; Color Match strength no longer grays the image

Downloads

• macOS (Apple Silicon): .dmg
• Windows: .exe / .msi
• Linux: .AppImage / .deb / .rpm

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中文

界面观感的一次重大更新——全新的胶片化（filmic）渲染带来纯净的白场、更丰富的对比度，并找回了高光与阴影细节；同时新增 Canon CR2 / Olympus ORF 导入和重新设计的曝光控制。

新增

• 支持 Canon CR2 与 Olympus ORF 原始格式导入
• 亮度/密度滑块，以及更智能的、类 Lightroom 的自动白平衡
• 可自定义快捷键——按住某键再点 ←/→ 即可微调，并带屏幕提示
• 导出分辨率——可自定义最长边/分辨率
• 撤销/重做提示，会标明你改动的控件名称
• 对中国友好的应用内更新器（R2 镜像）以及官网博客页面

改进

• **影调全面重做：**全新胶片化渲染——纯净白场、更强的对比与通透感，找回此前发灰、扁平、死黑的高光与阴影细节
• **保护高光的曝光：**±5 滑块在 +3 之后不再无变化；下拉时画面整体变暗而高光依然明亮
• 更明亮、校准更合理的默认曝光
• 更快的导出与实时印样（contact sheet）缩略图
• 浏览时图库缩略图自动刷新为最新观感

修复

• 因目录数据库迁移未完成导致的启动崩溃
• 白平衡一致性——灰点取色器，以及裁剪重新分析后的偏粉问题
• 高分辨率缩放黑屏；自动除尘接缝；颜色匹配强度不再使画面发灰

OpenEnlarge 0.5.0

OpenEnlarge 0.5.0 — Develop a whole roll at once

The headline of this release is the new Develop section: a roll-level, contact-sheet workflow that lets you process and finish an entire roll together, then export it as a film-strip contact sheet.

New

• Develop (roll contact sheet): a film-strip view of every developed frame in the folder. Adjust the roll look — tone, white balance, curves — and watch all thumbnails update live. Set crop, film base, and white point on a single reference frame and apply them to the whole roll. Tap a frame for a full-screen view.
• Crop re-analysis: cropping the roll re-derives the white point (D-max) from the cropped reference frame and applies it roll-wide; a manually picked white point stays sticky.
• Contact-sheet export: export the sheet as an image in the film-strip style (sprockets, frame numbers, editable film-edge text) or a clean proof grid, toggled by the film-edge switch.
• Library: import a whole folder at once (recursive); resizable folder panel; sharper 1080px grid thumbnails when zoomed in.
• Image engine: exposure now drives the effective D-max for cleaner highlight separation; a stronger, resolution-scaled Texture slider; relative ± color-temperature display with a tightened white-balance range and keyboard adjust hotkeys.
• Film base: scroll-wheel to resize the sampling area; one-click revert of a crop re-analysis.

Fixes

• Re-entering Develop no longer reverts the roll's crop or resets its look.
• Contact-sheet frames now show at their true aspect ratio (no letterbox gaps).
• Stabilized auto white-balance; more accurate clipping warning; color picker now samples clean image data instead of the clipping overlay.
• A corrupt / undecodable raw no longer pins the develop badge forever — it's flagged with a clear message and excluded from the count.
• Robust develop-cache writes, so a developed frame stays developed across restarts.

Download

Grab the installer for your OS below — macOS (Apple Silicon) .dmg, Windows .exe / .msi, Linux .AppImage / .deb / .rpm.

中文

本次更新的核心是全新的 显影（整卷印样）工作流：以印样的方式一次性处理并精修整卷，再导出为胶片样片。

新增

• 显影（整卷印样）： 以胶片样片的形式显示文件夹中所有已显影的画面。调整整卷色调、白平衡、曲线，所有缩略图实时更新。在一张参考画面上设置裁剪、片基、白点，并应用到整卷。点按画面可全屏查看。
• 裁剪重新分析： 裁剪整卷会从裁剪后的参考画面重新测定白点（D-max）并应用到整卷；手动拾取的白点保持不变。
• 印样导出： 以胶片样片样式（齿孔、帧号、可编辑的片边文字）或干净的样片网格导出，通过"片边"开关切换。
• 库： 一次性递归导入整个文件夹；可调整宽度的文件夹面板；放大时更清晰的 1080px 网格缩略图。
• 图像引擎： 曝光现在驱动有效 D-max，高光分离更干净；更强的、按分辨率缩放的纹理滑块；相对 ± 色温显示，收紧的白平衡范围与键盘微调快捷键。
• 片基： 滚轮调整取样范围大小；一键撤销裁剪重新分析。

修复

• 重新进入"显影"不再还原整卷的裁剪或重置色调。
• 印样画面现在以真实纵横比显示（不再有黑边空隙）。
• 稳定的自动白平衡；更准确的裁切警告；取色器现在取样干净的图像数据，而非裁切叠加层。
• 损坏 / 无法解码的 RAW 不再永久占用显影角标——现在会以明确提示标记并从计数中排除。
• 健壮的显影缓存写入，已显影的画面在重启后保持已显影状态。

下载

在下方选择对应系统的安装包 — macOS（Apple 芯片）.dmg、Windows .exe / .msi、Linux .AppImage / .deb / .rpm。

OpenEnlarge 0.4.3

Instant, flicker-free image switching in Develop.

New

• AI Enhance — download: save the AI-enhanced image directly at its native resolution (PNG, 16-bit TIFF, or JPEG), without routing it through the upscaler.

Improvements

• Instant image switching: already-viewed and nearby images appear immediately when you switch — no flash through the raw/unadjusted states, including rotated and cropped frames.
• Filmstrip thumbnails persist your edits: the bottom-row thumbnails keep your developed look across relaunch instead of reverting to the default render.
• Reliable session restore: the image you were viewing comes back correctly on relaunch.

Fixes

• The active filmstrip thumbnail no longer flashes the un-adjusted “base” look on every navigation.
• App state and preferences no longer drop saves when several settings change at the same moment.

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中文

显影中即时、无闪烁地切换图像。

新增

• AI 增强 — 下载： 可直接以原始分辨率保存 AI 增强后的图像（PNG、16 位 TIFF 或 JPEG），无需经过放大流程。

改进

• 即时切换图像： 切换到已浏览或相邻的图像时立即显示，不再闪过原片/未调整状态——包括旋转和裁剪后的画面。
• 胶片条缩略图保留你的调整： 底部缩略图在重启后保留显影后的效果，不再回退到默认渲染。
• 可靠的会话恢复： 重启后会正确回到你正在查看的图像。

修复

• 底部胶片条中当前图像的缩略图不再在每次切换时闪现未调整的“原始”效果。
• 多个设置同时更改时，应用状态与偏好设置不再丢失保存。

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Download the installer for your OS below. / 请在下方选择适合你操作系统的安装包。

OpenEnlarge 0.4.2

OpenEnlarge 0.4.2 — Texture 100% preview & UI polish

New

• Develop → Texture: a new 100% button jumps the preview to a true 1:1 view, so you can judge the fine-detail Texture effect accurately (it can't be judged when fit-to-window).

Improvements

• The macOS title bar now matches the app background for a seamless window.
• Calmer Develop "confirm" button and a refined glass Export modal.
• UI chrome no longer shows webpage-style blue selection highlights.

Downloads

• macOS (Apple Silicon): .dmg
• Windows: .exe / .msi
• Linux: .AppImage / .deb / .rpm

中文

新功能

• 显影 → 纹理： 新增 100% 按钮，可将预览切换到真实的 1:1 视图，从而准确判断纹理这一细节锐化效果（适应窗口时无法准确判断）。

改进

• macOS 标题栏现在与应用背景保持一致，窗口浑然一体。
• 更柔和的显影"确认"按钮，以及更精致的玻璃质感导出窗口。
• 界面不再出现网页式的蓝色文字选中高亮。

下载

• macOS（Apple 芯片）： .dmg
• Windows： .exe / .msi
• Linux： .AppImage / .deb / .rpm

OpenEnlarge 0.4.1

OpenEnlarge 0.4.1 — faster develop, AI auto-dust, marquee zoom & clipping warnings, plus a big batch of fixes.

New

• One-click AI auto-dust — a live, undoable toggle right on the main display (GPU-baked heal; "{n} spots removed" toast).
• Marquee zoom — drag a rectangle to zoom, with a reset-view button. Plus an RGB densitometer readout on hover.
• Highlight / shadow clipping warnings — corner toggles with a GPU overlay.
• Faster develop — a display-sized preview proxy that loads full detail on zoom; the Quality setting is gone (automatic now).
• Crop aspect ratios grouped by film format; base picker pixel-loupe + full-res picking for thin rebates.
• Drag slider numbers to micro-adjust; Export pre-selects the current grid/filmstrip selection.

Improvements

• Batch export pipelined with bounded concurrency.
• Decode / develop / render moved off the UI thread — no more freezes opening images or stepping the filmstrip.
• Resident-memory LRU keeps RAM bounded on large libraries; MI-GAN heal runs ~4× fewer tiles.

Fixes

• macOS filmstrip dead-click zone (webview event-region resync).
• WebGL context leak on image switch; film-base picker memory blow-up (OOM).
• Windows ONNX crash on launch (DirectML → CPU).
• Highlight/shadow latitude across invert+finish; flipped/rotated crop re-analysis; auto-dust colored halos; assorted eraser / zoom / export polish.

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Download the installer for your platform below — macOS (Apple Silicon) .dmg, Windows .exe / .msi, Linux .AppImage / .deb / .rpm.

OpenEnlarge 0.4.0

OpenEnlarge 0.4.0 brings a wave of AI-assisted tools, reference-based tone matching, and a smarter, more automatic inversion workflow.

New

• AI Enhance — one-click enhancement powered by OpenAI (gpt-image-2). Add your API key in Settings and enhance straight from the toolbar.
• Tone Matching — match the toning of your photo to a reference image. Tap to change the reference, dial in strength, and apply in a single commit.
• Local Upscaler — on-device 4K/8K upscaling via a tiled ONNX engine. Models are downloaded on demand (with a progress gate); no cloud round-trip.
• AI Dust & Hair Removal — automatic defect detection (BOPBTL) plus MI-GAN inpainting. Also available as an AI-fill eraser: paint a mask and apply a single, undoable AI erase.
• Negative / positive auto-detection — develop now classifies each frame. Positives pass through untouched; negatives get a single always-on Inverse button, with a "treat as positive" link when you need to override.
• Measured white-point picker — pin D_max from a measured leader patch using a live viewport crosshair (also available in the CLI via --white-rect).
• Copy / paste tone & color settings — Cmd/Ctrl+C / Cmd/Ctrl+V to carry edits between frames.
• Opt-in anonymous analytics — help guide development via Aptabase. Fully opt-in, with a request-dashboard-access link in Settings.
• Library — option to omit preview JPGs on import, plus a remove-folder context menu.

Improvements

• Unified, 30%-darker theme across the background and panels.
• Gaussian-smoothed histogram (viewport + tone curve) to tame spikes.
• Hover polish and consistent button styling across the editing panels and dialogs.
• About modal rewritten to accurately describe the Cineon density inversion pipeline.

Fixes

• Tone-curve endpoint nodes can now be dragged in x, not just y.
• Export, upscale, and dust-removal now run off the UI thread — no more freezes.
• Live viewport and grid thumbnail correctly honor the positive/negative verdict.
• Various upscaler guards (output-shape validation, download-progress flicker).

Downloads

• macOS (Apple Silicon): .dmg
• Windows: .exe / .msi
• Linux: .AppImage / .deb / .rpm

Already on v0.2 or later? Update in place from Settings → Check for updates.

OpenEnlarge 0.3.1

OpenEnlarge 0.3.1 — HDR preview & export (experimental)

New

• HDR preview & export (experimental) — toggle any frame into true HDR. Highlights glow beyond SDR white on HDR-capable displays, and the frame exports as a gain-map HDR JPEG that matches the preview.
• Export scoped to the current folder — the export dialog now lists only the current folder's developed images (the filmstrip row), instead of every developed image across all folders.

⚠️ HDR is experimental

• Display support is verified on macOS; likely on Windows; Linux falls back to the SDR image with no loss.
• HDR export is gain-map JPEG only — TIFF and PNG stay SDR.
• The develop sliders don't yet edit into the HDR headroom — deeper HDR-aware editing is coming next.

Download

• macOS — .dmg (Apple Silicon)
• Windows — .msi or .exe
• Linux — .AppImage / .deb / .rpm

Already on v0.2 or later? Update in place from Settings → Check for updates.

OpenEnlarge 0.3.0

OpenEnlarge 0.3.0 — a reworked, physically-honest inversion engine, automatic film-base detection, and a faster, friendlier develop workflow.

✨ New

• One inversion engine — Kodak Cineon (negadoctor) density inversion. The film-stock dropdown and engine toggle are gone in favor of a single, consistent, physically-based path: each channel's density is restored relative to the measured film base, anchored to the roll's density range, then printed back to a positive.
• Automatic film-base detection. OpenEnlarge finds the orange-mask rebate and samples it as a single coherent clear-film color (a real RGB value, not three independent per-channel percentiles), with a hint to repoint it when confidence is low.
• Crop-aware analysis. Film base, density range (D_max), and white balance are now measured inside your crop — so the black surround and rebate of a camera scan no longer wash the image out.
• Gray-point white-balance picker. Click a neutral to set scene white balance; WB is applied as a gain on the positive print, so deep shadows stay neutral instead of picking up a color cast.
• Drag-and-drop import. Drag scans onto the Library and drop them in — with a full-window drop indicator.
• Multi-select & multi-delete. Ctrl/Cmd-click, Shift-click, and Ctrl/Cmd+A across the grid and both filmstrips, with a "Delete N items" context action.
• More context-menu actions — "Open in folder" (Library and Develop) and Flip horizontal / vertical.

💅 Improvements

• Tuned Cineon tone defaults for better out-of-the-box contrast.
• Faster analysis — base and D_max are sampled on a 512px proxy and stored per image at develop time, instead of re-sorting the full-resolution frame on every image switch.
• Interface polish throughout — hover feedback on tabs, tools, and menu items; flatter, calmer Library panels; refined Import / Tether / Export buttons; a glassy Settings popup; and context menus that stay on-screen with a scale transition.
• Sticky white balance — a deliberate Temp/Tint adjustment persists and is no longer clobbered when other controls change.

🐛 Fixes

• Robust auto white balance — no more blue cast from warm highlights.
• Manual Temp/Tint now persists when you revisit an image.
• Context menus no longer clip at the screen edges.

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Download

• macOS (Apple Silicon) — OpenEnlarge_0.3.0_aarch64.dmg
• Windows — OpenEnlarge_0.3.0_x64-setup.exe (or the .msi)
• Linux — OpenEnlarge_0.3.0_amd64.AppImage, .deb, or .rpm

On 0.2.0+, you can also update from inside the app.