So you know, I do currently believe the images I am producing is art of one type or another. But, because I wasn’t going to list this post in the site’s index, I decided to use the same name as the previously similarly named post.

The reason for this second post is that I have been working on adding coloured backgrounds to the images. And, I wanted to share the results with a few people a short while before the related posts would be published.

I have played with a few different styles of background. A single solid colour, a gradient, a blotchy background and any of those with a non-continous colourmap. Just finished the post on the latter this afternoon. I do like the effect. So, I thought I’d share an image or two with the various types of coloured backgrounds.

If you haven’t seen the earlier related post have a look at Is It Art?. Those all had white backgrounds. Feel free to let me know how you feel about the various background options.

Lot’s of images. Probably don’t want to be looking at this on a cell phone or a limited monthly download volume account.

Same Colourmaps for Spirograph and Background

Single Solid Colour

These two images use the same curve parameters, just a differing curve/plot type.

Gradient

Gradients can change at any angle between horizontal and vertical. This first one looks to be transitioning nearly horizontally.

Blotchy #1

Might first attempt at producing a blotchy background used an equation to select colours from the colourmap. Which meant that the pattern would always be similar from one image to the next. For the second approach, I just generated an array of random values which are used to select the colours from the background colourmap. The 2nd seemed to me to create more interest than the first approach.

Blotchy #2

Different Colourmaps for Spirograph and Background

For a single colour background, the module always uses a colour from the curve’s colourmap. So, won’t be showing single colour backgrounds for this or the next section.

I decided to look at using different colourmaps for the curve and the background. Picked a few options for each of the colourmaps I was using for plotting the curves. Bit of a guess, not sure they all really work, but…

Gradient

The gradients in these two images appear to run at roughly a 45° angle.

Blotchy #1

Just don’t seem to get the variation in these that are produced with the second approach. Especially with more subtle colourmaps.

Blotchy #2

Quite like this first one.

Discrete Colour Colourmaps for Background

I decided to see what would happen is the available colours in the colourmaps was reduced to a discrete number and range. Wrote function to generate custom colourmaps from the colourmap selected for the background. Kind of like the look.

Gradient

Both these images use the same curve parameters. But, plot type and background are different.

Blotchy #1

The discrete colour approach seems to generate a more disctinct pattern than with the sequential colourmaps. But as you can see the pattern of the background is the same in both images.

Blotchy #2

Thought I should show a simple spirograph curve on a coloured background.

That’s It

Plenty enough images for a single post. Hope you liked one or two.