CODEWITHSUNDEEP
python
Malik Brahimi
Malik Brahimi

Reputation: 16711

RGB Tuples to RGB Integers

I was wondering how can I grab a color from a pixel as an RGB integer with conversion if needed. Also, how can I determine if a pixel is lighter or darker than another pixel by using the differences.

Upvotes: 1

Views: 1465

Answers (1)

Mark Ransom
Mark Ransom

Reputation: 308121

Simple:

rgb_int = rgb_tuple[0] << 16 | rgb_tuple[1] << 8 | rgb_tuple[2]

Testing for lighter or darker is trickier. You should work with a single grayscale value for the lightness, then they are directly comparable. There are different ways to convert RGB to grayscale, this is the oldest and simplest:

gray = r * 0.299 + g * 0.587 + b * 0.114

Upvotes: 2

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