Embroidery Data Creation Using Local Angle Thresholds
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Solution Overview
Problem
Existing embroidery data creation methods fail to effectively produce a unique embroidered texture while accurately expressing the features of an original image, particularly in sections with weak angle characteristic intensities, as they either lack distinctiveness or exhibit excessive stitching in fixed directions.
Innovation Solution
An apparatus and method that calculates first and second angle characteristics for pixels with different intensity thresholds, adjusts the second angle characteristics based on surrounding pixels and set angle characteristics, and arranges line segments accordingly to create embroidery data that combines natural stitching with unique textures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If angle characteristics of surrounding pixels are taken into account to arrange line segments, then the features of the original image are effectively expressed, but a unique embroidered texture cannot be produced
Solution Approach 1:
The patent applies different angle characteristic determination methods to different regions of the image. For pixels with strong angle characteristic intensity, the original angle characteristics are used. For pixels with weak angle characteristic intensity, the angle characteristics are determined based on surrounding pixels to ensure natural blending. This local differentiation resolves the contradiction by expressing image features accurately in important regions while creating unique embroidered texture in background regions.
2Ease of manufacture
If angle characteristics are limited to a fixed direction, then a unique embroidered texture can be produced, but stitches in the fixed direction stand out excessively in sections where the angle characteristic is weak
Solution Approach 1:
The patent implements local quality by setting a threshold for angle characteristic intensity. Pixels above the threshold use their original angle characteristics to preserve image features, while pixels below the threshold use angle characteristics from surrounding pixels or fixed directions to create embroidered texture. This resolves the contradiction by preventing excessive standing out of fixed-direction stitches in important image regions while still producing unique texture in appropriate regions.
3Productivity
If line segments are arranged based on strong angle characteristic intensity, then the overall image characteristics are effectively reflected, but sections with weak angle characteristic intensity lose their natural texture
Solution Approach 1:
The patent processes different pixel regions with different strategies based on their angle characteristic intensity. High-intensity regions are processed efficiently using original angle characteristics, while low-intensity regions receive special handling to preserve natural texture. This resolves the contradiction by maintaining high overall processing efficiency while ensuring accurate local feature expression in regions that require it.
Data Source
AI summary
An apparatus includes a processor and a memory configured to store computer-readable instructions that, when executed, cause the apparatus to perform steps comprising calculating a first angle characteristic and an intensity of the first angle characteristic with respect to each of pixels, arranging a first line segment in a position corresponding to a first pixel based on the first angle characteristic, calculating a second angle characteristic of a second pixel based on the first angle characteristic of at least one pixel adjacent to the second pixel, acquiring information indicating a third angle characteristic, calculating a fourth angle characteristic based on the second angle characteristic and on the third angle characteristic, arranging a second line segment in a position corresponding to the second pixel based on the calculated fourth angle characteristic, and creating data indicating at least stitches that respectively correspond to the first line segment and the second line segment.