Visualising Clothing Colours as a 3D Cloud of Points II

Friday's post was about displaying the colour distribution in clothing photos. Here are the results of trying it on some more of my clothes. The first few are velvet Moroccan shirts in chocolate-brown, garnet-red, violet, ice-blue, rose-pink, and sage-green. Then there's a cube for the green, blue and violet shirts together. Then one for my red silk Chinese top. And finally, one for this silk shirt by Colorpoint, decorated with figures of the Roman-inspired Marvin the Martian.

The preponderance of Moroccan is because I need the background removed, so that its colour distribution doesn't get mixed in with that of the clothes. As it happened, I'd already done so for most of the Moroccan ones, when I was preparing for a show. But background removal is tedious and imprecise, and I've not done it for most of the other clothes.
Colour-distribution cube for my brown velvet Moroccan shirt. The cube contains a fairly tight diagonal line going from the black corner to the white; i.e. from (0,0,0) to (1,1,1).
Colour-distribution cube for my garnet velvet Moroccan shirt. The cube contains a diagonal line going from the black corner to the white. It has a small offshoot going to the blue corner, and a bigger offshoot parallel to the red-blue face of the cube, going about 1/3 of the distance to the white corner.
Colour-distribution cube for my plum velvet Moroccan shirt. The cube contains a bluish-violet banana going from the black corner to the white. The middle part of the banana bends away from the green corner.
Colour-distribution cube for my rose velvet Moroccan shirt. The cube contains a white-pinky-blue banana going from the black corner to the white. The middle part of the banana bends away from the green corner.
Colour-distribution cube for my sage-green velvet Moroccan shirt. The cube contains a greenish-yellowy-white banana going from the black corner to the white.
Colour-distribution cube for my sage-green, ice-blue, and plum  velvet Moroccan shirts. The cube contains tongues of pale green, ice blue, and pinkish-violet, and a little white.
Colour-distribution cube for my red silk Chinese top. The cube contains a plume of red going from the black corner to the red corner, and a fine spray of white going to the white corner.
Colour-distribution cube for the Colorpoint silk shirt, which is black decorated with green, yello, and orange-red aliens. The cube contains vivid roughly parallel sprays of these three colours, plus a bit of pale blue.

I love the vividness and contrast in the distribution for the Colorpoint shirt. But the most noticeable thing is the intensity of the colour plume for the red silk Chinese top. Unlike with the other clothes, the plume goes off to a colour corner (red), with only a very thin offshoot to the white corner. This may be because most of the other clothes have either patches of whitish shine, or actual whitish material as in the garnet-red shirt. But also, the silk top does look an intense red when I wear it — a red that I 've not seen on any other garment. I've been told that silk dyes more intensely than other fabrics, though I can't find anything online that confirms this.

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