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Extracting groups of adjacent non-white pixels

I'm looking for a way to extract groups of adjacent non-white pixels (RGB < 255, 255, 255) from an image:

Diagonally neighboring pixels ( ) may or may not count as adjacent.

Can you give me a few pointers?

Extracting groups of adjacent non-white pixels

I'm looking for a way Given an image, I'd like to extract groups of adjacent non-white [1] pixels (RGB < 255, 255, 255) from an image: by their rectangular bounding boxes:

Diagonally neighboring pixels ( ) may or may not count as adjacent.

Can you give me a few pointers?

[1] (RGB < 255, 255, 255)

Extracting groups of adjacent non-white pixels

Given an image, I'd like to extract all groups of adjacent non-white [1] pixels by their rectangular bounding boxes:

Diagonally neighboring pixels ( ) may or may not count as adjacent.

Can you give me a few pointers?

[1] (RGB < 255, 255, 255)

Extracting groups of adjacent non-white pixels

Given an image, I'd like to extract all groups of adjacent non-white [1] pixels by their rectangular bounding boxes:

Diagonally neighboring pixels ( ) may or may not count as adjacent.

Can you give me a few pointers?

[1] (RGB (R, G, B < 255, 255, 255)

Extracting groups of adjacent non-white pixels

Given an image, I'd like to extract all groups of adjacent non-white [1] pixels by their rectangular bounding boxes:

Diagonally neighboring pixels ( ) may or may not count as adjacent.

Can you give me a few pointers?

[1] (R, G, B < 255, 255, 255)