Freeform Image Cropping via Transparent Overlay Layer
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Solution Overview
Problem
Conventional image cropping methods on mobile devices lack freeform cropping capabilities and the use of transparent layers, leading to limitations in editing and sharing images, as they often result in rectangular shapes and alter the original image, making it difficult to revert back to the original version and causing issues like white borders.
Innovation Solution
A computer-based method for cropping images on mobile devices using transparent layers, allowing users to create a freeform cropped image by defining irregular boundaries with a stylus or finger, which can be copied, pasted, or sent without altering the original image, using a software application that supports iOS and other operating systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional rectangular cropping is used, then the cropping operation is simple and fast, but the cropping shape is limited and cannot achieve freeform boundaries
Solution Approach 1:
The patent divides the cropping operation into multiple layers: the original image layer and a separate transparent overlay layer. The overlay layer contains the freeform cropped region definition, while the original image remains intact. This segmentation allows freeform cropping without modifying the original image, resolving the contradiction between operational simplicity and shape flexibility.
Solution Approach 2:
The patent introduces a transparent overlay layer as an intermediary between the user's cropping intent and the original image. This overlay layer acts as a mediator that defines the freeform cropped region without directly altering the original image, enabling both simple operation and flexible shape selection.
2Ease of operation
If the original image is directly cropped, then the cropping operation is straightforward, but the original image is altered and cannot be reverted
Solution Approach 1:
The patent creates a transparent overlay layer as a copy that contains the cropping information, rather than directly modifying the original image. This copying approach allows the original image to remain unchanged and fully reversible, while the overlay layer carries the cropping operation.
Solution Approach 2:
The patent performs the cropping operation preliminarily on a separate transparent overlay layer before applying it to the original image. This preliminary action on the overlay allows users to define and adjust the cropped region without committing changes to the original image, ensuring reliability and reversibility.
3Device complexity
If rectangular cropping is used, then the cropping boundary is simple to define, but irregular or freeform boundaries cannot be achieved
Solution Approach 1:
The patent uses a transparent overlay layer that can take any shape, acting as a flexible film that conforms to the desired freeform cropped region. This flexible overlay allows users to define irregular boundaries by simply drawing on the transparent layer, achieving both simple operation and shape versatility.
4Weight of moving object
If mobile device cropping is used, then the device portability is maintained, but freeform cropping functionality is lacking
Solution Approach 1:
The patent adds a temporal and functional dimension to mobile device cropping by introducing a separate transparent overlay layer that evolves through multiple processing steps. This dimensional approach enables freeform cropping functionality on portable devices without compromising their lightweight nature, as the complexity is managed through software layering rather than hardware additions.
Data Source
AI summary
The present invention provides a method for cropping one or more files in freeform using transparent or non-transparent layers. Specifically, the invention allows a user to crop a file with irregular/freeform boundaries while using a plurality of transparent or non-transparent layers that overlay the original file. The transparent layers overlap the image data for cropping, so that the finalized cropped image may be copied, pasted, or imported into another document while leaving the original file unaltered. The cropped portion of the image may also be sent or emailed by the user.