# Curve density over an image

**URL:** <https://discourse.processing.org/t/curve-density-over-an-image/3210>\
**Category:** Project Guidance\
**Created:** [September 2, 2018, 11:25pm UTC](https://discourse.processing.org/t/curve-density-over-an-image/3210 "2018-09-02T23:25:56Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [September 3, 2018, 6:37pm UTC](https://discourse.processing.org/t/curve-density-over-an-image/3210/4 "2018-09-03T18:37:13Z")

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At a lower level (texture) you might be interested in **Handy** and **p5.scribble** :

- [handy gallery — giCentre](https://www.gicentre.net/handy/gallery/5h4l061o8j6nzfb4o0e4cpkssobxob)
- [handy — giCentre](https://www.gicentre.net/handy/)
- [Using the Handy library — giCentre](https://www.gicentre.net/handy/using/)
- [GitHub - generative-light/p5.scribble.js: Draw 2D primitives in a sketchy look in p5.js](https://github.com/generative-light/p5.scribble.js)

You could look into using a PShader – perhaps by browsing [shadertoy.com](http://shadertoy.com) for keywords like scribble, scrawl, hand-drawn, drawing, pencil, pen, charcoal etc.

- [https://www.shadertoy.com/results?query=pencil](https://www.shadertoy.com/results?query=pencil)

In general, you might also be interested in looking into some recent impressive CGI rendering techniques called “style transfer”, which specifically maps a hand-drawn style onto a photograph or model.

- [https://www.youtube.com/watch?v=ksCSL6Ql0Yg](https://www.youtube.com/watch?v=ksCSL6Ql0Yg)
- [Reddit - The heart of the internet](https://www.reddit.com/r/GraphicsProgramming/comments/5dcjl0/help_wanted_scribble_fill_algorithm/)

**Edit: for more on style transfer resources for Processing, see:**

> [@Neural style transfer in processing](https://discourse.processing.org/t/neural-style-transfer-in-processing/3497/3):
>
> Here are some pointers for getting started with Processing and neural style transfer. (I am not an expert): perspective An interesting overview from Hannu Töyrylä on switching from using Processing to neural style transfer, then re-incorporating it into a Processing workflow. [http://liipetti.net/erratic/2016/12/11/neural-networks-style-transfer-and-artistic-process/](http://liipetti.net/erratic/2016/12/11/neural-networks-style-transfer-and-artistic-process/) …more related posts: [http://liipetti.net/erratic/category/neural-networks/](http://liipetti.net/erratic/category/neural-networks/)try it out If you are looking to try out a working …

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