描述

const snapshotA = await Jimp.read(fileA)
snapshotA.background(0x00000000)

const snapshotB = await Jimp.read(fileB)
snapshotB.background(0x00000000)

const diff = Jimp.diff(snapshotA, snapshotB, mismatchThreshold)

贡献者指南

技术栈

javascriptnodejs

领域

backend

议题类型

bug

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

3

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

half day

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

stale

清晰度议题是否清楚说明期望改动、验收标准和下一步。

clear

前置要求

Familiarity with Jimp APIUnderstanding of image blending

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

50

研究方向

The issue is about the background color in image diffs. Look at the `Jimp.diff` function implementation to understand how the diff image is composited. Check how the background color of input images is used in the diff result. The user provides images with transparent background but the diff overlay still uses white. Investigate the diff algorithm and see if it uses a hardcoded white background or if it should blend with the source images' backgrounds. Files to examine: likely in packages/diff/src/index.js or similar. Review any maintainer comments if present.