Masking and filtering image files

[kurokida]

The new version of jspsych-psychophysics plugin is released. It supports to mask and filter image files, and is compatible with the latest version of jsPsych 6.3.0.

Masking is useful for cropping a specific area of an image. You can select a masking type among ‘circle’, ‘rect’, ‘gauss’, and ‘manual’. Filtering is useful for, for example, blurring an image. Filtering is not a feature of the psychophysics plugin, but rather an experimental feature provided by canvas.