jimp-dev/jimp

[Request] Addition aka Linear Dodge blendmode

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#724 opened on Apr 21, 2019

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enhancementhelp wanted

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Description

I need to composite some images together with addition blendmode (also known as Linear Dodge) I've seen that there is a multiply blendmode, i mean it isn't very different from the addition blendmode and would be a quick thing to add.

Cheers

Contributor guide

Research direction
Study the existing multiply blendmode implementation in jimp and add a similar addition blendmode function following the same pattern.
Tech stack
javascript
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70