Welsh Algorithm for Color Transfer from Color Images to Grayscale Images
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Resource Overview
Implementation of color transfer from color images to grayscale images using the Welsh algorithm, achieving promising results; This program was developed and debugged in VC++6.0 environment, effectively transferring color characteristics while preserving image structure.
Detailed Documentation
In this article, we explore the method of transferring color characteristics from color images to grayscale images. We employ the Welsh algorithm, renowned for its excellent performance in colorization tasks. The implementation was developed and debugged in the VC++6.0 environment, successfully achieving color transfer from color images to grayscale images. The algorithm works by analyzing color statistics from the source color image and applying them to the target grayscale image through optimal mapping functions. Key implementation aspects include color space conversion (RGB to Lαβ), statistical feature extraction, and pixel-wise color mapping using weighted distance metrics. This program enables effective conversion of color images to grayscale while maintaining essential details and producing more realistic results through intelligent color distribution based on luminance matching and spatial coherence.
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