Top-rated recipes tagged "image"

Mandelbrot fractal using PIL (Python)

2010-03-26T04:39:46-07:00

Python recipe 577111 by FB36 (fractal, graphics, image, math). Revision 2.

Mandelbrot fractal using Python Image Library (PIL).

Quasicrystal Pattern Generator (Python)

2015-08-08T20:50:23-07:00

Python recipe 579094 by FB36 (fractal, graphics, image, images, math, mathematics).

Quasicrystal Pattern Generator

Bilinear Interpolation (Python)

2013-02-23T04:00:52-08:00

Python recipe 578469 by FB36 (graphics, image, math, mathematics, pil).

Creates a surface from a grid of random numbers using Bilinear Interpolation.

Bezier Curve using De Casteljau algorithm (Python)

2011-11-25T02:33:54-08:00

Python recipe 577961 by FB36 (graphics, image, math, mathematics).

Draws a random Bezier Curve using De Casteljau algorithm.

Multi-threaded Mandelbrot Fractal (Python)

2011-05-01T17:33:20-07:00

Python recipe 577680 by FB36 (fractal, graphics, image, math, mathematics, thread, threading, threads). Revision 3.

Multi-threaded Mandelbrot Fractal.

Sierpinski Triangle Fractal using HTML5 Canvas (JavaScript)

2010-07-07T15:07:30-07:00

JavaScript recipe 577294 by FB36 (fractal, image, math).

Sierpinski Triangle Fractal using Line Automaton (1D CA). The 1D CA rule used is actually Pascal's Triangle Mod 2. Tested only using Firefox 3.5.

Metro Spinner for Tkinter (Python)

2017-04-10T21:14:36-07:00

Python recipe 580777 by Miguel Martínez López (canvas, image, pil, rotation, spinner, tkinter).

I create a rotating image class RotatingIcon inspired and based on this code:

http://stackoverflow.com/questions/15736530/python-tkinter-rotate-image-animation

Features:

Methods to stop and start the animation
The animation automically stops when the window is not mapped, and the animation continues when the window is mapped again
Time setting to control the speed of the animation
All the formats accepted for PIL could be used. XBM format is automatically converted to Tk Bitmap. The advantage of Bitmats is the possibility to change the color of the foreground.

I added 6 different styles of spinners with different sizes.

I used fontawesome.io for the icon generation.

For more metro widgets see here:

https://code.activestate.com/recipes/580729-metro-ui-tkinter/

Image to ASCII Art Converter (Python)

2016-09-25T21:24:12-07:00

Python recipe 580702 by FB36 (graphics, image, images, pil).

ASCII Art Generator (Image to ASCII Art Converter)

Input file maybe JPG, PNG, GIF etc. Output file name maybe output.txt etc.

Image Projection Onto Sphere (Python)

2016-07-31T22:50:28-07:00

Python recipe 580695 by FB36 (graphics, image, images, image_processing, imaging, math, mathematics, pil).

Image projection onto sphere using Equirectangular map projection.

Download the test image from the Wikipedia page!

Mandelbrot Fractal image output to ppm file (Python)

2015-01-17T19:21:47-08:00

Python recipe 579006 by FB36 (fractal, image, images, math, mathematics).

It creates image output without using any external library.

PPM image files can be viewed and converted to other image file formats using many applications, GIMP or IrfanView for example.

scale rectangle while keeping aspect ratio (Python)

2011-02-20T22:36:39-08:00

Python recipe 577575 by Romain Dartigues (image, math, resize, simple). Revision 2.

Resize a rectangle (ie.: an image) while keeping the aspect ratio, without float.

You can scale up and down the proportions so the edges will be either at most or at least the given one.

Polynomial Interpolation using Lagrange Polynomial (Python)

2010-11-28T03:03:36-08:00

Python recipe 577474 by FB36 (graphics, image, math, mathematics).

Polynomial Interpolation (curve-fitting) using Lagrange Polynomial.

Fern IFS Fractal (Python)

2010-03-21T16:00:51-07:00

Python recipe 577134 by FB36 (fractal, graphics, image, math).

Fern Fractal drawn using its Fractint IFS definition.

Floyd-Steinberg dithering algorithm (Python)

2009-06-02T01:28:46-07:00

Python recipe 576788 by Alan Holt (algorithm, dithering, floyd_steinberg, image, manipulation).

Floyd-Steinberg dithering is an image dithering algorithm (see http://en.wikipedia.org/wiki/Floyd-Steinberg for more details). While the algorithm is mainly for image manipulation, I use it to create random locations for sensor networt devices.

Image Resizer (Python)

2016-05-22T16:45:52-07:00

Python recipe 580663 by FB36 (image, images, utilities, utility). Revision 2.

Image resizer/converter command-line utility.

Saving a numpy array to png image using fitz / MuPDF (PyMuPDF) (Python)

2016-03-19T12:57:38-07:00

Python recipe 580630 by Harald Lieder (fitz, image, mupdf, numpy, png, pymupdf). Revision 2.

If a pixel array is defined in numpy, it can be saved as a PNG image VERY fast if you use PyMuPDF.

Random Planet Generator Using Plasma Fractal (Python)

2016-01-25T23:05:25-08:00

Python recipe 580495 by FB36 (fractal, graphics, image, images, math, mathematics).

Random Planet Generator using 3D Plasma Fractal and Voxel-based Ray Tracing for rendering.

Instead of generating 2D Plasma Fractal and projecting onto sphere, it generates 3D Plasma Fractal (cube) and cuts sphere from it.

Reaction Diffusion Simulation (Python)

2015-10-16T19:52:02-07:00

Python recipe 579114 by FB36 (chaos, fractal, graphics, image, images, math, mathematics, physics, simulation). Revision 2.

Reaction-Diffusion Simulation using Gray-Scott Model.

Draw Text To Image (Python)

2015-07-13T18:04:30-07:00

Python recipe 579013 by FB36 (image, images, pil). Revision 2.

PIL does not allow resizing default bitmap font. This code resizes it by itself.

The disadvantage is slow speed but the advantage is it becomes possible to set color of each pixel of text foreground and background.

As an example I set foreground to reverse colors and background to grayscale.

Image Converter (Python)

2015-01-18T19:14:38-08:00

Python recipe 579007 by FB36 (conversion, conversions, convert, converter, image, images, pil).

Converts an image from one format to another using PIL.