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Tag Archives: images

Aligning and adjusting images using photoshop: Core scan example

1      About this approach

In this approach we use photoshop to align images and make image brightness, contrast and other adjustments. These instructions are written for photoshop CS6, but they should be applicable to other recent versions of Photoshop.

This approach has these advantages over aligning images in adobe illustrator or other vector package:

  1. Opportunity to automatically align images
  2. Ability to make image brightness, contrast and other adjustments live (and reversibly)
  3. Ability to make granular image adjustments (i.e. at the edges of aligned images to make them match better).

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Working with Wikis (websites) on blackboard (v9.1)

This page explains the basics of working with wikis (websites) on blackboard Learning management system. Instructions apply to version 9.1. Have a look at the planning section below, then check out the video or text instructions.

[Instructions UPDATE (8/9/2015)]

Here are a couple of tips to make things a bit easier:

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How to compress powerpoint presentations

These instructions are applicable to Powerpoint 2011 on MacOS and Powerpoint 2013 on PC (and probably versions on either side of these).

The size of your Powerpoint presentation is mostly going to be based to the number of images you have in your presentation, image size (especially if you are using MacOS), and your default compression settings (only applicable if you are using a windows PC).

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Handling images in MS word mac 2011

These are instructions for handling images in MS word 2011 on MacOS, including instructions on outputting final PDF. These instructions probably also apply to versions form 2010-2014. Continue reading

Focus stacking images using macro or stereomicro photography equipment and Zerene stacker

This article has been specifically written for using the macro-photography setup or the stereomicroscope setup in the Imaging Lab (formerly called the Graphics Lab) in the geology department. Instructions are for using Zerene stacker to stack the images rather than photoshop because it is faster, easier and produces better results in all cases that I have seen. For example Zerene Stacker took 72s to stack 11 images and photoshop took 125s, the difference in stacking speed is even more pronounced when more images are used.

This post supersedes the previous focus stacking post I wrote which recommended using photoshop.

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