Colorization Using the Rotation-Invariant Feature Space
Bin Sheng, Hanqiu Sun, Shunbin Chen, Xuehui Liu, Enhua Wu · IEEE Computer Graphics and Applications · 2011
Current colorization based on image segmentation makes it difficult to add or update color reliably and requires considerable user intervention A new approach gives similar colors to pixels with similar texture features. To do this, it uses rotation-invariant Gabor filter banks and applies optimization in the feature space.