Class 22 — October 13

Trying out a new pillow

Pillow is software — Go try and figure it out — For a thousand words

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Look both ways

• Back or ahead

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Agenda

• Introduce Pillow for image generation and manipulation

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Redownloads

• Module url.py

• Program pillow_painting.py

• Program canvases.py

• Program paint.py

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Downloads

• Program gradient.py

• Program groovy.py

• Program wahoo.py

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Discussion

• Pillow is a library for manipulating images in Python. Unlike the math library and others we have used, Pillow is not part of the standard Python install; you have to add it yourself.

• To install Pillow on your laptop go here.

• For now the parts of Pillow of interest to us are:

• Image: Pillow representation of an image.

• ImageDraw: Pillow image drawing commands.

• The Image has one particular function of current interest to us:

• Image.new( m, size, color='black' ) returns a mode m new image, whose dimensions are size. The background of the image color. Parameter color is optional with a default value of black. For us,

• m will always be the string 'RGB';

• size will always be an ordered pair of the form ( w, h ), where w is the width of the image and h is the height of the image.

• The ImageDraw has a host of drawing commands. Many of them are demonstrated in paint.py

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To do

• Look over artifacts

• Homework

• Review paint.py

• Review Pillow drawing module

• Checkout last semester artistry

• Checkout past artistry highlights

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Imagery