WOOF_Image :: grayscale( Arguments $attr = array() )

Returns:

  • WOOF_Image A new image object representing the image with filter applied.

Removes the color from the image, and caches the result in the image cache.

Given the following unprocessed image:

The example code produces this image:

Example:

Parameters:

  • Arguments $attr = array()

    An arguments string or array which supports the following parameters:

    • extension – the output extension to use, which also defines the output file type. This can be either “png”, “gif”, “jpeg”, or “jpg”, and if not set, the source image type will be used. default – not set
    • alpha – whether to save alpha information for PNGs – default true
    • prefix – a prefix to prepend to the cached output file name – default ”
    • suffix – a suffix to append to the end of the cached output file name – default ”
    • maxlength – the maximum length the output file name (sans-extension) can be before it will be replaced with the original filename followed by an md5 hash of all of the manipulations thus far. default – 72

    Note that the maxlength param can be important as chaining multiple filters or resizes together can result in very long file names for the cached images.

Latest From the Blog

MasterPress 1.3.10 is now available

9th November 2023

MasterPress 1.3.10 is a feature and bugfix release. Workaround for fatal error introduced by changes to WordPress’ wpdb class in WordPress 6.4. Added actions to MPC files upload_field & WF image save_image functions.

Plugin Requirements

MasterPress requires a minimum of WordPress version 4.9, MySQL 5.6, and PHP version 5.6.20.

We also recommend that PHP is configured to use a memory limit of 64MB per request (128MB may be required for sites with higher complexity).

This plug-in is not compatible with the WordPress.com hosted service.

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