Touch Image Editing Controls for Simultaneous Rotation and Scaling
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Solution Overview
Problem
Existing image editing applications require users to remember operation modes for switching between rotation and scaling, which is counterintuitive and limits simultaneous performance of both actions using two-finger touch gestures.
Innovation Solution
An image processing apparatus that enables simultaneous rotation and scaling by displaying and enabling/disabling control states for rotation and scaling based on user interactions, allowing intuitive control through touch operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If rotation and scaling are performed exclusively via two-finger touch gestures with mode switching, then the need for dedicated rotation control components is eliminated, but the user experience becomes counterintuitive and frustrating due to the need to remember operation modes and inability to perform both actions simultaneously
Solution Approach 1:
The patent implements dynamic switching between rotation mode and scaling mode based on the current state of the image. When the image is not rotated, two-finger touch enables both rotation and scaling simultaneously. When the image is rotated, the system automatically switches to scaling-only mode. This dynamic adaptation eliminates the need for users to remember operation modes while maintaining intuitive control.
Solution Approach 2:
The system provides visual feedback by displaying icons indicating the current operational mode (rotation icon or scaling icon). This feedback mechanism informs users about the available operations without requiring them to remember the mode, resolving the contradiction between eliminating control components and maintaining ease of operation.
2Device complexity
If mode switching is required between rotation and scaling, then dedicated control components can be eliminated, but operation time increases due to the need to switch modes and remember operations
Solution Approach 1:
The system determines the appropriate operation mode in advance based on the image's rotation state before the user performs the touch gesture. The control unit checks whether the image is rotated and pre-configures the available operations, eliminating the need for users to switch modes during operation and reducing operation time.
Solution Approach 2:
The operational mode dynamically adapts to the image state, allowing both rotation and scaling to be available when the image is upright, and switching to scaling-only when rotated. This eliminates unnecessary mode switching steps and reduces the time users spend on operation setup.
3Device complexity
If rotation and scaling cannot be performed simultaneously, then control complexity is reduced, but versatility and user satisfaction are reduced for users familiar with simultaneous two-finger operations
Solution Approach 1:
The system dynamically enables both rotation and scaling operations simultaneously when the image is in an unrotated state. The control unit processes both rotation and scaling commands from two-finger touch gestures concurrently, providing the versatility users expect while maintaining simplified control logic through state-based automation.
Solution Approach 2:
The two-finger touch interface is designed to handle multiple functions (rotation and scaling) simultaneously when conditions permit. The system provides universal operation capability by enabling both rotation and scaling through the same gesture mechanism, eliminating the need for separate dedicated controls and maintaining high versatility.
Data Source
AI summary
An image processing apparatus detects an operation including a touch on a display, performs control to display one or more images on the display, performs control to display first and second display items at a position corresponding to a selected image in response to one of the one or more images being selected as the selected image, switches a state regarding a first control between an enabled state and a disabled state if the first display item is tapped, switches a state regarding a second control between an enabled state and a disabled state if the second display item is tapped, performs the first control in response to a specific touch operation on the selected image if the first control is in the enabled state, and performs the second control in response to the specific touch operation if the second control is in the enabled state.