TLUG Presentation June 2009: Beginning GIMP

[Robert P. J. Day]

On Sat, 14 Mar 2009, Richard Weait wrote:

> Hi All,
>
> I'm pleased to confirm that Giles Orr has generously offered to share
> his experience with The GIMP (The GNU Image Manipulation Program) with
> us at the June 2009 TLUG meeting.
>
> Abstract: http://tlug.ss.org/wiki/Meetings:2009-06
>
> The GIMP was the most requested topic in our recent poll and is eagerly
> anticipated based on discussion at recent meetings.
>
> Thank you, Giles.  See you there, everybody.

  on a (somewhat) related note, i was playing with gimp to design some
high-res (WUXGA) per-pixel test patterns, but i clearly didn't want to
have to manually set pixels using paint or pencil or something
similar, and someone pointed me here:

  http://pythonware.com/library/index.htm

where you can grab a python-based imaging library to quickly create
image files.  for instance, here's a pgm that creates a WUXGA pattern
with alternating pixel columns of red, green, blue and white:

############################################

#!/usr/bin/python

import Image, ImageDraw
import sys

columns = 1920
rows = 1200

im = Image.new("RGB", (columns, rows))

draw = ImageDraw.Draw(im)

print im.size[0]        # columns
print im.size[1]        # rows

c = 0

while c < columns:
    draw.line((c, 0, c, rows-1), fill=(255, 0, 0))          # red
    draw.line((c+1, 0, c+1, rows-1), fill=(0, 255, 0))      # green
    draw.line((c+2, 0, c+2, rows-1), fill=(0, 0, 255))      # blue
    draw.line((c+3, 0, c+3, rows-1), fill=(255, 255, 255))  # white
    c += 4

# im.show()
im.save("eg1.png", "PNG")

##############################################

  are there any other comparable products for whipping up cool image
files as above?

rday
--

========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
    Have classroom, will lecture.

http://crashcourse.ca                          Waterloo, Ontario, CANADA
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