Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hacker News 50 @hn50@social.lansky.name

3/8/2026, 12:05:07 PM

Public

From RGB to L*a*b* color space (2024)

Link: https://kaizoudou.com/from-rgb-to-lab-color-space/
Discussion: https://news.ycombinator.com/item?id=47245061

From RGB to L*a*b* color space - Kaizoudou

How do we assess color accuracy between different images? Unfortunately, the commonly used RGB color space is not perceptually uniform, which means that equal changes in RGB values do not correspond to equal perceived changes in color. This inconsistency can lead to inaccuracies in color reproduction across various devices. The Lab color space, on the […]

kaizoudou.com · Kaizoudou

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