Peter's Photo Time Capsule

View my latest photography time capsule here.

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Using OpenCV in Python to Remove Colours in Images

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I'm experimenting with the OpenCV  programming library as part of the Computational Photography  course I'm taking at Coursera . I don't know if I'll be able to finish the course due to my other obligations, but I just thought I would share my first little test program so that my students might benefit. This program reads in a picture file, then simply strips off the red, green, and blue channels and saves the files. I've written the program so it can easily be adapted for other picture files. Simply replace "flower" with the base part of your filename in the img_base_name variable and enter the path to your picture file in the img_path variable. Note th at the OpenCV and the numpy libraries must be installed and that you need to be using Python 2.x. Here's my program: # imports import cv2 # the computer vision library, from http://opencv.org/ import numpy as np # wasn't needed but is always imported in examples # make it easy to mo
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V-Strom Owners Map Project

I've started a new project which is turning out to be much more successful than I had hoped. It's called the V-Strom Owners Map Project and it's located at http://www.beens.org/v-strom/ . [ direct link to map ] Basically, anyone that owns a V-Strom sends me their location (city is okay, postal/zip code is better) and I plot it on a map. To assure everyone's privacy, I have a strict policy where I state that I will never release any personal information that has been disclosed to me to anyone. The problem is, some V-Strom owners want to be able to use the map to hook up with other V-Strom owners. (Actually, this isn't a problem, this is great!) So, here's my solution. If you are willing to share your personal information (anything you want: name, address, phone #, email address, anything...), then add a comment to this blog entry, with the number that you are on the map. Thank you to everyone for the kind feedback for this project, and I hope the blog pa
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Ontario Technological Education Teachers Mail Lists

When I did the provincial training for the new Tech Ed curriculum back in 2009, I created mail lists in Google Groups as a way for the teachers to network, both as part of the training and afterwards. A number of these mail lists have become hugely successful, with lots of dialogue about anything from field trips to textbooks, and what I am most happy about, with teachers creating and freely sharing resources that they have developed. To join any of these lists, you have to have a Google account. If you have a Gmail account, then you already have a Google account, so you can just use that address to join. If you don't have a Google account, you'll have to create one, which you can easily do by following the directions after you click on one of the links below. Note that you do not have to create and use a Gmail account to join; you are welcome to use your school board or personal email address. To join any of these mail lists, just click on the appropriate link below : An
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