In this letter, we propose a new color quantization method suppressing saturation decrease.
In the proposed method, saturation-based weight and intensity-based weight are used so …

In this letter, we propose a color quantization method based on saliency. In the proposed
method, the salient colors are selected as representative colors preferentially by using …

(in English) In a 24 bit full color image, there are about 16 millions possible colors. On the
other hand, in a limited color image, the color of each pixel is selected from a color pallet …

In this paper, we propose a new color quantization method for generation of the color-
reduced images. The proposed method employs a vector error diffusion (VED) method and …

High performance of color quantization processing is very important for obtaining limited-
color images with good quality. The median cut algorithm (MCA) is a typical color …

(in English) In this report, a new color quantization method, which is an improved median cut
algorithm by considering the color distribution, is proposed. In the proposed method, the …

Color quantization is used to obtain an image with the same number of pixels as the original
but represented using fewer colors. Most existing color quantization algorithms are based on …

We develop an effective algorithm for colorizing a grayscale image. In our approach, a
reference color image, an RGB to l α β color transform (l= luminance, α β= chrominance) …

Color quantization algorithms are used to select a small number of colors that can accurately
represent the content of a particular image. In this research, we introduce a novel color …

A two-stage color quantization method is proposed in this paper. At the first stage, a palette
selection scheme suitable to the quantization level requirement is chosen and an initial …