Image Vignetting Replacement Using Symmetry-Based Border Masks

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Solution Overview

Problem

Conventional image generation systems rely on manual user identification of image vignetting, which is time-consuming and can result in unwanted loss of information or alteration of image size and shape when cropping is used to remove vignetting.

Innovation Solution

An image generation system that identifies a border mask based on symmetry and segmentation of a digital image, allowing it to distinguish and replace the vignetting area without manual user input, thereby generating a new image with extended content to fill the vignetting area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual user identification of border area is used, then accuracy of border detection is improved, but time consumption increases

Engineering Contradiction:
Improveborder detection accuracyVSAvoidtime consumption
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs automatic border area identification using symmetry analysis and segmentation algorithms, eliminating the need for manual user input. The border mask is generated autonomously by analyzing image characteristics, thus resolving the contradiction between accuracy and time consumption.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary border detection and mask generation before the main image processing task. By pre-identifying the border area through symmetry and segmentation analysis, the system prepares the border mask in advance, reducing overall processing time while maintaining accuracy.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If cropping is used to remove border area, then border removal is simplified, but image content loss increases

Engineering Contradiction:
Improveborder removal simplicityVSAvoidimage content loss
Core Design Contradiction:
Ease of manufactureVSLoss of information

Solution Approach 1:

The system segments the image into border area and content area using a generated border mask. This segmentation allows precise identification of border regions without affecting content areas, enabling border removal or replacement without cropping the entire image, thus preventing content loss while maintaining simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different processing to different regions: the border area is identified and processed separately from the content area using the border mask. This local differentiation ensures that only the border region is affected, preserving the quality and integrity of the content area while still achieving border removal.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If cropping is used to remove border area, then border removal is simplified, but image size and shape alteration occurs

Engineering Contradiction:
Improveborder removal simplicityVSAvoidimage size and shape
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

By segmenting the border area using a generated border mask, the system can selectively process only the border region without affecting the overall image dimensions. This allows border removal while maintaining the original image size and shape, unlike cropping which alters the image boundaries.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies border removal operations locally to the identified border area while preserving the content area and overall image dimensions. This localized processing maintains the original image size and shape while still achieving effective border removal.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12608779B2Systems and methods for image vignetting replacement
Publication Date: 2026.04.21 ADOBE INC
  • US12608779B2 patent drawing
  • US12608779B2 patent drawing
  • US12608779B2 patent drawing

AI summary

Systems and methods for image generation are provided. An aspect of the systems and methods includes obtaining a digital image including a content area and a border area that includes at least two corners of the digital image; generating a border mask for the border area based on a symmetry of the border area with respect to the at least two corners; and generating a generated image based on the border mask, wherein the generated image includes the content area and a generated area corresponding to the border area, and wherein the generated area depicts an extension to content from the content area.