Quill Image Filters Reference Documentation

Introduction

Quill Image Filters is a library containing different image editing operations "filters". Their primary use is by the image editing library LibQuill, but these image editing operations, targeting better efficiency than their Qt counterparts, can be used by other applications as well.

Overview

The image filters operate using the QuillImage class, which is an extension to the QImage class. In addition to full-resolution images, QuillImages can represent only parts of an image "tiles", or downgraded-resolution representation of the images "previews/thumbnails". QuillImageFilters treat their input images accordingly: for example, the Crop filter applied to a tile completely within the crop region will have no effect.