Image API for black/white

[Peter Knight]

Hi guys

Is there a way with the image API to convert an image to B&W? I don't see it mentioned in the docs.

This is my echo at the moment

// Generate a very low res version 	
$options = array(
'quality' => 1,
'upscaling' => false
);

I'm basically trying some lazy loading with Lazy Sizes and this allows you to create a default low-res image until the proper image is loaded.

http://afarkas.github.io/lazysizes/#examples

I know I can fall back to CSS but thought I'd check when you do.

 

[Zeka]

You could try to use grayscale() method of PageImage Manipulator module

[Peter Knight]

53 minutes ago, Zeka said:

You could try to use grayscale() method of PageImage Manipulator module

Might be the best option. Thanks @Zeka

[LostKobrakai]

The core images api is only for resizing; in terms of pixels and file size a.k.a. quality.

[DaveP]

You could probably also create a very small (in pixels) variation and scale it up in CSS then lazy load a full size image over it.