3.3 Image Data
We had collected a number of indigo-dyed fabrics from Sakon Nakhon Province which is the most famous area of indigeneous woven fabrics of Thailand. Indigo-dyed fabric images were taken under the same camera settings and environments. The camera was tuned to get the fabric images that are most similar to the real fabrics. Especially, the colour attribute. All of the images had the same size of 512 × 512 pixels. There are totally 138 images for testing. Figure 1 shows some examples of the indigo-dyed fabric images used in our experiments