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Example code of blue-tomato/image-blurhash

Informations about the package image-blurhash

ImageBlurhash

ImageBlurhash is a module for ProcessWire CMS which automatically generates Blurhash strings for uploaded images.

What is Blurhash?

BlurHash is a compact representation of a placeholder for an image. E.g. used for lazy loading placeholders.

More about Blurhash itself:

Usage

Installation

  1. Execute the following command in the root directory of your ProcessWire installation:

  2. ProcessWire will detect the module and list it in the backend's Modules > Site > ImageBlurhash section. Navigate there and install it.

Configuration

Activate Blurhash in the field setting of the image: Setup > Fields > image_field > Details > Generate Blurhash Strings

API

Return's the encoded Blurhash as string or false if not existing

E.g.

Returns the decoded Blurhash as base64 PNG datauri for usage in an image. If not existing transparent GIF image will be returned.

Hint: If your image is 500x300 pixels, you can use 50x30 for the Blurhash Data-URI and and scale up the image with CSS. This makes Blurhash decoding faster, the data-uri smaller but the quality is still good.

Migration of existing images

For migration of existing fields there are two CLI script in the module directory

regenerateImages.php

E.g.

Generates for all image fields who have the createBlurhash option new Blurhashs.

generateEmptyImages.php

E.g.

Generates for all image fields who have the createBlurhash option and have no Blurhash in the database a new Blurhash.

Roadmap

Currently encoding component quality default to 4x3. In the future this value will be configurable over the field settings for each field.

Support

Please open an issue for support.

Contributing

Create a branch on your fork, add commits to your fork, and open a pull request from your fork to this repository.

To get better insights and onboard you on module implementation details just open a support issue. We'll get back to you asap.

License

Find all information about this module's license in the LICENCE.txt file.

All versions of image-blurhash with dependencies

PHP Build Version
Package Version
Requires php Version >=7.0
composer/installers Version ~1.0
kornrunner/blurhash Version ~1.2.1
ext-curl Version *
ext-gd Version *
ext-exif Version *
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