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Plugin Description
This plugin allows you to lazy load your images while showing the dominant color of each image as a placeholder – like Pinterest or Google Images. It also enables you to use tiny thumbnails as placeholders. If you want to know how it works read the article Dominant Colors for Lazy-Loading Images, where I explain the general concept.
To ensure the quality of the plugin please let me know if you encounter any issues. I will reply swiftly and fix them as soon as possible!
Features
- The plugin calculates the dominant color of an image upon upload.
- All images attached to posts and pages are automatically replaced with placeholders and load as soon as they enter the viewport to save bandwidth.
- Galleries added via the default
shortcode are also replaced and loaded as soon as they appear in the viewport.
- A custom filter for lazy-loading thumbnails or featured images can be used in templates and themes (
apply_filters( 'dominant_colors', $image, $id )).
- Dominant colors can be calculated for all existing attachments in the plugin settings.
- This has already been tested with thousands of images.
- Until the calculation is done you can specify a fallback color for your placeholders.
- All files that can’t be processed are listed during calculation and link to the particular attachment in the media library.
- You can choose between GIF and SVG placeholders.
- SVG placeholders have the same pixel size and aspect ratio as the original images, instead of being a single square pixel. This way responsive images do not need a wrapper for preserving the original aspect ratio.
- GIF placeholders are small and have great browser compatibility. They also enable you to use tiny thumbnails as described on manu.ninja for your images.
- You can set the resolution of tiny thumbnails to 3×3 pixels (120 bytes), 4×4 pixels (128 bytes) or 5×5 pixels (204 bytes).
- The plugin is compatible with RICG Responsive Images, which has been added to WordPress 4.4 as default functionality.
Demo
You can see the plugin live at http://www.karriere.at/blog/.
Screenshots
