Directional Feathering of Image Objects via Opacity Masks
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Solution Overview
Problem
Existing automated feathering tools are non-directional, resulting in uniform feathering of all image object edges, which is not desirable in graphics layouts where only specific edges need to blend smoothly with underlying objects.
Innovation Solution
A method and system for directional feathering of image objects, involving the creation of an opacity mask based on the shape and directional information of the image object, allowing for differential opacity values from the edge to the interior, and dynamic processing to achieve seamless blending with background images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing automated feathering tools are used, then all edges of an image object are feathered uniformly, but this results in non-directional feathering that does not match the requirement for blending only specific edges with underlying objects
Solution Approach 1:
The patent applies local quality by creating an opacity mask with non-uniform opacity values where only specific regions (edges that need blending) have reduced opacity while other regions maintain full opacity. This is achieved by processing the opacity mask with directional information to differentiate between edges that should be feathered and those that should not, allowing selective blending only where needed in the graphics layout.
Solution Approach 2:
The patent segments the image object into different regions based on its shape and directional information. By creating an opacity mask that reflects the specific geometry of the image object and applying directional processing, the system divides the feathering operation into distinct zones - feathered edges versus non-feathered edges - enabling precise control over which portions of the image object blend with underlying objects.
2Adaptability or versatility
If manual modifications are performed to achieve directional feathering, then precise control over which edges are feathered is achieved, but this requires external applications and multiple steps increasing complexity
Solution Approach 1:
The patent implements self-service by enabling the image editing system to automatically generate and process the opacity mask based on the image object's own shape properties and directional information. The system uses the image object's geometry to create the mask and applies feathering automatically without requiring external applications or manual intervention, thereby reducing process complexity while maintaining precise directional control.
Solution Approach 2:
The patent merges multiple operations into a single integrated process: creating the opacity mask, processing it with directional information, and applying the feathering effect are combined into one operation. This unified approach eliminates the need for separate manual steps and external applications, reducing overall process complexity while achieving the same directional feathering control.
3Ease of manufacture
If the original image object is modified to achieve feathering effects, then blending is achieved, but the original image object is altered which may not be desirable
Solution Approach 1:
The patent introduces an opacity mask as an intermediary element between the original image object and the final feathered output. The opacity mask contains the feathering information and is applied separately from the original image object, allowing the feathering effect to be generated without modifying the original image data. This preserves the integrity of the original image object while still achieving the desired blending effect through the intermediary mask.
Data Source
AI summary
This specification describes technologies relating to directional feathering of an image object. In general, one aspect of the subject matter described in this specification can be embodied in a method that includes obtaining an image object and directional information for the image object, the object including a shape having edges. The method also includes creating an opacity mask for the image object based on the shape of the image object. The method further includes processing the opacity mask such that opacity values in the opacity mask are different going from edge to interior of the shape and the opacity mask is processed in accordance with the directional information of the image object. Additionally, the method includes outputting a composite image based on the image object and the opacity mask.