qgis/qgis-js

Colors in QGIS wasm in chromium look less bright (washed out)

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#9 opened on Oct 24, 2023

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Description

grafik

It seems like Chrome does some color management which results in slightly dumper (less vivid) colors - when compared to QGIS Desktop and Firefox wasm rendering. One can see at in the blue of the rivers or the orange tones of the polygons above the shaded relief.

This is more an observation and not so much a bug.

@boardend : how to you transfer the rendered images from QGIS wasm to OpenLayers? As a JPEG or PNG encoded file? Can we influence color management in chrome?

Contributor guide

Research direction
Investigate color management in Chrome WebGL context when rendering QGIS output, compare with Firefox, and propose a fix to preserve color vibrancy.
Tech stack
typescript
Domain
full stack
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Color management basicsWebGL/Canvas
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45