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How to upscale any gallery picture to 2K or 4K with HEISS UI

Send an existing image through SeedVR2 from the gallery and keep the upscale next to the original.

Short answer: Open a picture in the gallery or viewer and press the upscale arrow; then choose 2K or 4K and choose Fast, Balanced or High effort in Settings › Features › Smart upscale; if the SeedVR2 nodes or model are missing, accept the install offer and wait for the download. All steps.

  • Content
  • Intermediate
  • 45 minutes
  • From the README
  • Any agent

Authorization notice. HEISS UI is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Who it is forA creator who has a good small image and needs a sharper, larger version for print or sharing.

The problemSmall generated pictures are often too low in resolution for the use you have in mind.

The outcomeThe upscale is saved next to the original, and a slider lets you compare the two.

What you need first

  • A ComfyUI install that is running, such as ComfyUI Desktop, or reachable at a known address
  • A Windows, macOS (Apple Silicon) or Linux computer, or Node.js 20.9+ if you install from source
  • Enough disk space for the model files you choose to download

Steps

  1. Open a picture in the gallery or viewer and press the upscale arrow.
  2. Choose 2K or 4K and choose Fast, Balanced or High effort in Settings › Features › Smart upscale.
  3. If the SeedVR2 nodes or model are missing, accept the install offer and wait for the download.
  4. Compare the original and the upscale with the slider once the countdown finishes.

Prompt for your agent

In the HEISS-UI studio (github.com/tristmeister/HEISS-UI), upscale the gallery image <image name> to 4K using Balanced or High effort. Report the saved upscale path and its pixel size. Verify that the upscale is stored next to the original file and that the SeedVR2 nodes were installed or already present.

Caveat. High effort is the slowest and uses the most graphics memory, so start with Balanced on a machine with limited memory.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for tristmeister/HEISS-UI and "Upscale any gallery picture to 2K or 4K"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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