Image Color Reduction for Embroidery Thread Mapping
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Solution Overview
Problem
Existing methods for converting images to embroidery designs fail to effectively reduce colors to match available embroidery thread colors, often resulting in loss of detail and aesthetics, as they do not consider the actual thread colors used in embroidery, leading to customer disappointment in online ordering systems.
Innovation Solution
A method that receives an image, filters it to remove noise, and then generates a color-reduced image by snapping each pixel to the nearest color in a predetermined set of embroidery thread colors, with iterative merging of color pairs based on similarity and edge characteristics to ensure the reduced image matches the limited thread colors allowed by the embroidery machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If color reduction is performed by snapping pixels to dominant colors, then the number of colors is reduced, but important small details are lost and aesthetics are degraded
Solution Approach 1:
The patent changes the parameter of color representation from continuous spectrum to discrete embroidery thread colors. By mapping image colors to a predetermined set of embroidery thread colors rather than simply dominant colors, the system reduces color count while preserving visual fidelity and important details through the iterative merging process that considers edge characteristics.
Solution Approach 2:
The patent performs preliminary filtering to remove noise from the image before color reduction. This preliminary action ensures that small important details are preserved during the subsequent color reduction process, preventing them from being lost when colors are merged.
2Ease of manufacture
If color reduction is performed without considering thread colors, then processing is simpler, but the resulting image does not match available embroidery thread colors
Solution Approach 1:
The patent changes the color space parameter from generic color reduction to embroidery thread color matching. By using a predetermined set of embroidery thread colors as the target color space and snapping pixels to these specific colors, the system ensures that the reduced image accurately represents colors that can be actually embroidered, achieving both processing feasibility and color accuracy.
3Adaptability or versatility
If the number of colors is reduced to match thread spools, then the image can be embroidered, but aesthetic quality may be compromised
Solution Approach 1:
The patent implements a dynamic iterative merging process that adaptively merges color pairs based on color similarity and edge characteristics. This dynamic approach allows the system to reduce colors to match embroidery machine capabilities while intelligently preserving aesthetic quality by avoiding merges that would create noticeable artifacts or lose important visual information.
Solution Approach 2:
The patent uses feedback from edge detection and color similarity analysis to guide the color merging process. By continuously evaluating the impact of potential merges on image quality and adjusting the merging strategy accordingly, the system maintains aesthetic quality while achieving embroidery compatibility.
Data Source
AI summary
Methods and systems are presented for converting an image to a color-reduced image suitable for embroidery and having colors mapped only to available embroidery thread colors. Pixel color values in the image are snapped to a nearest color in a predetermined reduced set of colors that correspond to embroidery thread colors. The image is then color-reduced by iteratively identifying possible pairs of colors in the color-reduced image and merging at least one identified color pair based on color similarity and edge characteristics until the total number of colors in the color-reduced image is not greater than the predetermined maximum color count.