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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta
name="description"
content="Plenoview is an OpenEXR image viewer for computational imaging, rendering, and vision workflows, with spectral, polarization, panorama, depth, and AOV inspection."
/>
<meta name="robots" content="index,follow" />
<meta name="theme-color" content="#0b0f14" />
<meta name="application-name" content="Plenoview" />
<link rel="canonical" href="https://elerac.github.io/plenoview/" />
<link rel="icon" type="image/png" href="project-page/app-icon.png" />
<link rel="apple-touch-icon" href="project-page/app-icon.png" />
<meta property="og:type" content="website" />
<meta property="og:site_name" content="Plenoview" />
<meta property="og:title" content="Plenoview | OpenEXR Image Viewer" />
<meta
property="og:description"
content="Plenoview is an OpenEXR image viewer for computational imaging, rendering, and vision workflows, with spectral, polarization, panorama, depth, and AOV inspection."
/>
<meta property="og:url" content="https://elerac.github.io/plenoview/" />
<meta property="og:image" content="https://elerac.github.io/plenoview/project-page/social-preview.jpg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
<meta
property="og:image:alt"
content="Luminous glass prism splitting RGB light beams on a dark technical viewer backdrop"
/>
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="Plenoview | OpenEXR Image Viewer" />
<meta
name="twitter:description"
content="Plenoview is an OpenEXR image viewer for computational imaging, rendering, and vision workflows, with spectral, polarization, panorama, depth, and AOV inspection."
/>
<meta name="twitter:image" content="https://elerac.github.io/plenoview/project-page/social-preview.jpg" />
<meta
name="twitter:image:alt"
content="Luminous glass prism splitting RGB light beams on a dark technical viewer backdrop"
/>
<title>Plenoview | OpenEXR Image Viewer</title>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "SoftwareApplication",
"name": "Plenoview",
"applicationCategory": "MultimediaApplication",
"operatingSystem": "Web, Windows, macOS",
"url": "https://elerac.github.io/plenoview/",
"image": "https://elerac.github.io/plenoview/project-page/social-preview.jpg",
"description": "Plenoview is an OpenEXR image viewer for computational imaging, rendering, and vision workflows, with spectral, polarization, panorama, depth, and AOV inspection.",
"downloadUrl": "https://github.com/elerac/plenoview/releases/latest",
"softwareVersion": "0.1.0",
"license": "https://github.com/elerac/plenoview/blob/main/LICENSE",
"sameAs": [
"https://github.com/elerac/plenoview",
"https://marketplace.visualstudio.com/items?itemName=elerac.plenoview-vscode"
],
"offers": {
"@type": "Offer",
"price": "0",
"priceCurrency": "USD"
}
}
</script>
<script src="embed/plenoview.js"></script>
<script type="module" src="/src/project-page.ts"></script>
</head>
<body>
<div class="intro-shell">
<header class="site-header" aria-label="Project navigation">
<a class="brand-link" href="./" aria-label="Plenoview project page">
<img
class="brand-mark"
src="project-page/app-icon.png"
width="28"
height="28"
alt=""
aria-hidden="true"
/>
<span>Plenoview</span>
</a>
<nav class="site-nav" aria-label="Project links">
<a href="#downloads">Downloads</a>
<a href="#features">Features</a>
<a href="#gallery">Gallery</a>
<a href="#openexr-io">Guidance</a>
<a href="https://github.com/elerac/plenoview">GitHub</a>
</nav>
</header>
</div>
<main>
<section class="hero-section" aria-labelledby="hero-title">
<div class="hero-content">
<div class="hero-copy">
<h1 id="hero-title">Plenoview</h1>
<p class="hero-lede">
Plenoview is an OpenEXR image viewer for computational imaging, rendering, and
vision workflows. It reveals the rich structure of images that contain more than
color, including polarization, spectral, panoramas, depth, and AOVs.
</p>
<div class="hero-actions" aria-label="Primary actions">
<a class="button button-primary" href="app/" target="_blank" rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Open Web App</span>
</a>
<a class="button button-secondary" href="embed/">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M8 8 4 12l4 4" />
<path d="M16 8l4 4-4 4" />
<path d="M14 4 10 20" />
</svg>
<span>Embed</span>
</a>
</div>
</div>
<figure class="app-preview">
<img
src="project-page/app-preview.jpg"
alt="Plenoview interface showing an EXR image, opened files, inspector panels, and channel thumbnails"
width="1440"
height="900"
decoding="async"
fetchpriority="high"
/>
</figure>
</div>
</section>
<section id="downloads" class="downloads-section" aria-labelledby="downloads-title">
<div class="section-inner downloads-layout">
<div class="section-heading downloads-heading">
<h2 id="downloads-title">Downloads</h2>
<p>
Desktop installers are published from the latest GitHub Release, and the VS Code
extension is available from the Visual Studio Marketplace. Unsigned desktop builds
may show Windows or macOS security prompts.
</p>
</div>
<div class="download-actions" aria-label="Downloads and extensions">
<a
class="download-option"
href="https://github.com/elerac/plenoview/releases/latest/download/Plenoview-windows-x64-setup.exe"
aria-label="Download Plenoview for Windows x64">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M4 5h16v14H4z" />
<path d="M12 5v14" />
<path d="M4 12h16" />
</svg>
<span class="download-platform">Windows</span>
<span class="download-format">x64 NSIS installer</span>
<span class="download-action">Download .exe</span>
</a>
<a
class="download-option"
href="https://github.com/elerac/plenoview/releases/latest/download/Plenoview-macos-arm64.dmg"
aria-label="Download Plenoview for macOS ARM64">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M12 6.5c1.1-1.8 2.5-2.6 4.3-2.4" />
<path d="M17.7 13.2c0 2.8-2.3 6.2-4.1 6.2-.8 0-1.1-.4-1.9-.4s-1.2.4-1.9.4c-1.8 0-4.3-3.5-4.3-6.5 0-2.6 1.6-4.6 3.8-4.6.9 0 1.7.5 2.3.5.5 0 1.4-.6 2.5-.6 1.4 0 2.5.7 3.3 1.7" />
</svg>
<span class="download-platform">macOS</span>
<span class="download-format">Apple Silicon DMG</span>
<span class="download-action">Download .dmg</span>
</a>
<a
class="download-option download-option--vscode"
href="https://marketplace.visualstudio.com/items?itemName=elerac.plenoview-vscode"
aria-label="Install Plenoview VS Code extension">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M23.15 2.59 18.21.21a1.5 1.5 0 0 0-1.7.29L7.16 9.02 3.03 5.86a1 1 0 0 0-1.28.06L.33 7.26a1 1 0 0 0 0 1.48L3.9 12 .33 15.26a1 1 0 0 0 0 1.48l1.42 1.34a1 1 0 0 0 1.28.06l4.13-3.16 9.35 8.52a1.5 1.5 0 0 0 1.7.29l4.94-2.38c.52-.25.85-.78.85-1.35V3.94c0-.57-.33-1.1-.85-1.35zM18.14 17.68 11.01 12l7.13-5.68v11.36z" />
</svg>
<span class="download-platform">VS Code</span>
<span class="download-format">Marketplace extension</span>
<span class="download-action">Open Marketplace</span>
</a>
</div>
</div>
</section>
<section id="features" class="features-section" aria-labelledby="features-title">
<div class="section-inner">
<div class="section-heading">
<h2 id="features-title">Features</h2>
<p>Tools for inspecting, visualizing, exporting, and embedding channel-heavy EXR data.</p>
</div>
<div class="feature-catalog">
<section class="feature-card" aria-labelledby="inspect-title">
<svg class="feature-icon" viewBox="0 0 24 24" aria-hidden="true">
<circle cx="10.5" cy="10.5" r="6.5" />
<path d="M16 16l4.5 4.5" />
</svg>
<h3 id="inspect-title">Inspect</h3>
<ul class="feature-list">
<li>Open files and sample scenes; review metadata and channels.</li>
<li>Probe exact source values with zoom and rulers.</li>
<li>Inspect ROIs, valid samples, and image statistics.</li>
</ul>
</section>
<section class="feature-card" aria-labelledby="visualize-title">
<svg class="feature-icon" viewBox="0 0 24 24" aria-hidden="true">
<path d="M3 12h3l2-6 4 12 3-8 2 2h4" />
</svg>
<h3 id="visualize-title">Visualize</h3>
<ul class="feature-list">
<li>Browse RGB, alpha, AOV, spectral, polarization, and grouped channels.</li>
<li>Apply colormaps, exposure, gamma, and range controls.</li>
<li>Switch between image, panorama, and 3D viewing modes.</li>
</ul>
</section>
<section class="feature-card" aria-labelledby="export-title">
<svg class="feature-icon" viewBox="0 0 24 24" aria-hidden="true">
<path d="M12 3v11" />
<path d="M7 10l5 5 5-5" />
<path d="M5 19h14" />
</svg>
<h3 id="export-title">Export</h3>
<ul class="feature-list">
<li>Save PNG images with the current display settings applied.</li>
<li>Export screenshots, batches, and reproduction metadata.</li>
<li>Generate standalone gradient colorbars for registered colormaps.</li>
</ul>
</section>
<section class="feature-card" aria-labelledby="embed-title">
<svg class="feature-icon" viewBox="0 0 24 24" aria-hidden="true">
<path d="M8 8 4 12l4 4" />
<path d="M16 8l4 4-4 4" />
<path d="M14 4 10 20" />
</svg>
<h3 id="embed-title">Embed</h3>
<ul class="feature-list">
<li>Add <code><plenoview-viewer></code> to HTML pages.</li>
<li>Load the viewer with the hosted JavaScript web component.</li>
<li>Share EXR views in docs and project pages.</li>
</ul>
</section>
</div>
</div>
</section>
<section id="gallery" class="gallery-section" aria-labelledby="gallery-title">
<div class="section-inner">
<div class="section-heading">
<h2 id="gallery-title">Gallery</h2>
<p>
Gallery examples highlight source-value inspection, screenshot export,
visualization across RGB, depth, hyperspectral, polarization, and panorama EXR data,
plus an embeddable HTML viewer demo.
</p>
</div>
<div class="gallery-grid">
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>Source value inspection</strong>
<span>
Zoom into image data with pixel rulers and lock a probe to read exact source
channel values directly from the OpenEXR pixels.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="rgb"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot"
src="project-page/cbox-rgb-inspection.png"
alt="Plenoview zoomed into an RGB OpenEXR image with a locked pixel probe and pixel rulers at x 195 y 169"
width="1440"
height="900"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>Screenshot export</strong>
<span>
Select and crop multiple regions from the current view, keep a region active
for adjustment, and export pixel exact screenshot crops without interpolation.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="spoons"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot gallery-screenshot--wide"
src="project-page/spoons-screenshot-export.png"
alt="Plenoview screenshot export mode with two selected screenshot regions and R1 active"
width="2048"
height="1024"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>Polarization visualization</strong>
<span>
Stokes vector images with <code>S0</code>, <code>S1</code>, and <code>S2</code>
are visualized as computed <code>AoLP</code> and <code>DoLP</code>
images, with a dedicated colormap applied automatically. Full-Stokes vector images that include the circular
<code>S3</code> component also expose <code>CoP</code> and <code>ToP</code>
visualizations.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="stokes"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot"
src="project-page/polanalyser-stokes-aolp-y.png"
alt="Plenoview visualizing a Stokes vector image with computed AoLP and an automatically applied dedicated colormap"
width="1440"
height="900"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>Spectral visualization</strong>
<span>
Spectral channels are automatically computed into RGB for visualization,
while still supporting per-wavelength inspection with a spectral plot and
expanded spectral channel thumbnails.
<br />
Source:
<a class="gallery-source-link" href="https://vclab.kaist.ac.kr/siggraphasia2017p1/kaistdataset.html">KAIST Hyperspectral Image Dataset</a>.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="hyperspectral"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot"
src="project-page/kaist-hyperspectral-inspection.png"
alt="Plenoview visualizing hyperspectral EXR data with a locked pixel probe, Display collapsed, and spectral channel thumbnails expanded"
width="1440"
height="900"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>3D view</strong>
<span>
Switch RGB plus position data into a 3D point-cloud view, tune camera angles
and point size, and sample exact color and position values from the source pixels.
<br />
Source:
<a class="gallery-source-link" href="https://vision.middlebury.edu/stereo/data/scenes2021/">Middlebury Stereo Datasets</a>.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="3d"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot"
src="project-page/middlebury-position-inspection.png"
alt="Plenoview 3D viewer with a position-map source and a locked pixel probe at x 406 y 300"
width="1440"
height="900"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item">
<figcaption>
<div class="gallery-caption-copy">
<strong>Panorama view</strong>
<span>
Navigate HDRI data in equirectangular format with panorama mode and a wide fov,
while sampled view rays still resolve back to exact OpenEXR source pixels.
<br />
Source:
<a class="gallery-source-link" href="https://polyhaven.com/a/brown_photostudio_02">Poly Haven HDRIs</a>.
</span>
</div>
<div class="gallery-actions">
<a
class="button gallery-web-app-link"
data-gallery-launch="panorama"
href="app/"
target="_blank"
rel="noopener">
<svg viewBox="0 0 24 24" aria-hidden="true">
<path d="M14 5h5v5" />
<path d="M10 14 19 5" />
<path d="M19 14v5H5V5h5" />
</svg>
<span>Try Web App</span>
</a>
</div>
</figcaption>
<div class="exr-embed-frame gallery-screenshot-frame">
<img
class="gallery-screenshot"
src="project-page/polyhaven-panorama-inspection.png"
alt="Plenoview panorama view with yaw 5.37 pitch -34 and fov 180"
width="1440"
height="900"
loading="lazy"
decoding="async"
/>
</div>
</figure>
<figure class="gallery-item gallery-item--embed-demo">
<figcaption>
<div class="gallery-caption-copy">
<strong>HTML embed</strong>
<span>
Add the hosted JavaScript file and an HTML tag to publish an interactive
viewer directly inside HTML pages.
</span>
</div>
<div class="gallery-code-frame" aria-label="HTML embed code">
<pre><code class="language-html"><span class="syntax-punctuation"><</span><span class="syntax-tag">script</span> <span class="syntax-attribute">src</span><span class="syntax-punctuation">=</span><span class="syntax-string">"https://elerac.github.io/plenoview/embed/plenoview.js"</span><span class="syntax-punctuation">></</span><span class="syntax-tag">script</span><span class="syntax-punctuation">></span>
<span class="syntax-punctuation"><</span><span class="syntax-tag">plenoview-viewer</span>
<span class="syntax-attribute">src</span><span class="syntax-punctuation">=</span><span class="syntax-string">"cbox_rgb.exr"</span>
<span class="syntax-attribute">height</span><span class="syntax-punctuation">=</span><span class="syntax-string">"360"</span><span class="syntax-punctuation">></span>
<span class="syntax-punctuation"></</span><span class="syntax-tag">plenoview-viewer</span><span class="syntax-punctuation">></span></code></pre>
</div>
<a class="button gallery-web-app-link" href="embed/">
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<path d="M16 8l4 4-4 4" />
<path d="M14 4 10 20" />
</svg>
<span>Open Embed Guide</span>
</a>
</figcaption>
<div class="exr-embed-frame gallery-live-embed-frame">
<plenoview-viewer
class="gallery-live-embed"
src="cbox_rgb.exr"
height="360"
data-responsive-height></plenoview-viewer>
</div>
</figure>
</div>
</div>
</section>
<section id="openexr-io" class="guidance-section" aria-labelledby="openexr-io-title">
<div class="section-inner guidance-layout">
<div class="section-heading guidance-heading">
<h2 id="openexr-io-title">OpenEXR I/O guidance</h2>
<p>
This viewer groups OpenEXR channels by exact names inside each decoded layer. Use
conventional names and complete sets so the viewer can infer color, spectral series,
and Stokes-derived polarization views without custom rules.
</p>
<ul class="guidance-list">
<li><code>R/G/B</code> or <code>R/G/B/A</code> for color and alpha.</li>
<li>
Spectral channels should end in <code>nm</code>, such as <code>400nm</code>,
<code>500nm</code>, or <code>reflectance.500nm</code>, so wavelength series can be
sorted and grouped.
</li>
<li>
Stokes data should use complete matching <code>S0/S1/S2</code> sets, with optional
<code>S3</code>; suffixes and wavelengths should match across components.
</li>
</ul>
</div>
<a
class="button button-primary guidance-link"
href="skills/openexr-io/SKILL.md"
aria-label="Open OpenEXR I/O guidance">
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<path d="M14 3v5h5" />
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<span>Open SKILL.md</span>
</a>
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