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Imagery

In this area you will find a collection of photographs and images. Some appear elsewhere in these pages, others are published only here for your pleasure.Marius



Warning!!

These links connect to pages that all contain a number of thumbnail images, which in turn, connect to a larger version of the thumbnail. Each page contain not more than 10 thumbnails. All thumbnails will eventually be accompanied by a textual description but time restraints are still a problem. I have optimized all images but if there are some that are still too BIG or not lgeibel, please mail me.


Images


A note on the scanning of slides

After a number of experiments with an HP flatbed scanner, I have standardized on the following procedure:
  1. Scan slide at 200 dpi, millions of colours and 364% larger than original. This file is 1.927Meg big and the image displays at 1000*658 pixels.
  2. Crop edges if necessary. Final images are saved as jpegs at 90 dpi with 20% compression. If this file is now saved as a jpeg, it would be approximately 56K big which is still relatively large.
  3. To reduce the image size, I resample to 455*300 pixels, preserving the aspect ratio. The saved jpeg is approximately 16K big.
  4. To create the thumbnail, the original image is again taken and a 750*500 pixel relevant piece cropped from it.
  5. The cropped piece is then resampled to 150*100 pixels (sometimes to 200*150) and saved as a jpeg as above. The final thumbnail is approximately 5 K big.

All these figures are approximate sizes only! Including 10 thumbnails per page gives a total download size of roughly 50K. 300 dpi would probably be a better resolution but the resulting files are just too large too handle. For printing 600 dpi would be even better. The rule of thumb in this case would be to scan for your final destination. Quality of all images are not 100% what it should be. Suggestions and commentary welcome.

© 1999 High quality versions of these images are available. Contact me, Marius Loots at mloots@medic.up.ac.za for more information on obtaining the large image.


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