Selective Brushstroke Editing via Directional Data Matching
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Solution Overview
Problem
Conventional image editing tools struggle to selectively edit brushstrokes based on directional information, often modifying unintended brushstrokes due to imprecise selection techniques and lack of data structures for storing directional data, leading to user frustration and increased editing time.
Innovation Solution
An image editing application determines and stores directional data for each brushstroke and editing tool, selectively editing only those brushstrokes with similar directional data while leaving dissimilar ones unaffected, using data structures to manage and compare pixel-level directional information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user applies an editing tool to a targeted brushstroke by moving the cursor in a certain direction, then the cursor can edit the brushstroke having the similar direction, but the cursor may also edit additional portions of the image such as additional brushstrokes having directions dissimilar to the direction of the cursor
Solution Approach 1:
The patent applies local quality by making the editing tool's effect dependent on the local directional property of each brushstroke. Instead of uniformly editing all brushstrokes in the cursor path, the system selectively edits only those brushstrokes whose directional characteristics match the editing tool's direction, thereby achieving precise selection without requiring a smaller cursor.
2Manufacturing precision
If the cursor is modified to have a smaller shape to edit a brushstroke with increased precision, then the precision of brushstroke editing is improved, but the time for the user to perform the edits increases
Solution Approach 1:
The patent changes the parameter used for selection from spatial (cursor size and position) to directional (brushstroke orientation and editing tool direction). By comparing directional parameters instead of relying on small cursor areas, the system achieves both high precision and high productivity, as users can apply larger cursors and faster editing motions while the directional filter ensures only matching brushstrokes are edited.
3Ease of operation
If a user attempts to select a particular brushstroke and move it to a new layer using conventional selection techniques, then the brushstroke can be moved, but the selection technique may select brushstrokes or other image portions other than the particular brushstroke when other brushstrokes overlap
Solution Approach 1:
The patent implements feedback by continuously comparing the directional characteristics of brushstrokes with the directional parameters of the editing tool during the editing process. This directional feedback mechanism ensures that only brushstrokes matching the specified direction are selected and edited, providing accurate selection even when brushstrokes overlap, without requiring complex selection procedures.
Data Source
AI summary
An image editing application selectively edits a brushstroke in an image, based on a direction of the brushstroke. In some cases, the brushstroke is selectively edited based on a similarity between the direction of the brushstroke and a direction of an editing tool. Additionally or alternatively, directional data for each pixel of the brushstroke is compared to directional data for each position of the editing tool. Data structures capable of storing directional information for one or more of a pixel, a brushstroke, or a motion of an editing tool are disclosed.