Numerical recipes in C (2nd ed.): the art of scientific computing
Numerical recipes in C (2nd ed.): the art of scientific computing
Gradient domain high dynamic range compression
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
ACM SIGGRAPH 2003 Papers
Color2Gray: salience-preserving color removal
ACM SIGGRAPH 2005 Papers
Real-time gradient-domain painting
ACM SIGGRAPH 2008 papers
Robust color-to-gray via nonlinear global mapping
ACM SIGGRAPH Asia 2009 papers
An efficient perception-based adaptive color to gray transformation
Computational Aesthetics'07 Proceedings of the Third Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
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In this paper an algorithm for gradient domain color-to-gray conversion is described. By enhancing the luminance gradient with the chromatic difference in CIELAB space, a gradient field is created to construct the resulting gray-scale image using a Poisson equation solver. In our algorithm, we develop a modulated luminance gradient enhancement to produce artifact-free and salience-preserving grayscale images. A gradient sign control function is defined for isoluminance color images to keep the correct color ordering.