Can Photoshop CS5 Help Me Enhance a Shadowgraph?

  • Thread starter Thread starter Saladsamurai
  • Start date Start date
  • Tags Tags
    Photoshop
AI Thread Summary
The discussion revolves around using Photoshop CS5 to enhance a shadowgraph image that features electrodes and a flame, while minimizing defects. The user seeks guidance on smoothing the image, adjusting contrast, and making shadows more pronounced. A suggestion is made to use a small amount of blur for improvement, and an alternative program, ImageJ, is mentioned as a viable option. However, a critical point is raised regarding the ethical implications of manipulating scientific images, emphasizing the importance of adhering to established guidelines to avoid scientific fraud. The conversation concludes with an offer to assist further if the user shares the image, along with a recommendation for vector graphic software for sketching important features.
Saladsamurai
Messages
3,009
Reaction score
7
I mean, I am sure that it can, but maybe someone could just tell me how to do it? I have never used PS before. My school has Photoshop CS5 that I can access. Here is what I want to do.

The following image is a shadowgraph. You can see 2 "pointy things" (electrodes) and a circle (which is a flame). You can also see a bunch of defects all about the image. What I want to do is somehow "smooth out" everything and tweak the contrast so that all you really see are the important features: the electrodes and the flame. It would not hurt to make the shadows a little more pronounced (i.e. make them pop out more) by brightening the background.

Does anyone have the patience to walk me through this? Or at least get me started? :redface: Even if you can tell me what they would call the "smoothing" function.

I'll trade you a flounder.

TestImage.jpg
 
Physics news on Phys.org
What you want to do is not difficult- I'm not a Photoshop expert, but I use ImageJ (a free program) and there are a variety of tools that can be used. A small amount of blur can do wonders, for example.

However, this appears to be a scientific image (as opposed to a photograph)- you should know that doing what you are asking to do can be considered scientific fraud- there are explicit rules about what sort of image manipulations are permissible.

http://swehsc.pharmacy.arizona.edu/exppath/micro/digimage_ethics.php
http://www.uab.edu/ethicscenter/educational-materials/rcr-materials/image-manipulation/image-manipulation-bibliography

That said, if you email me the image (PM me for the address) I can try to help you.
 
Last edited by a moderator:
If you need just sketch of the important features, it will be probably easier and faster to draw them in some vector graphic program (like Inkscape).
 
lolarogers said:
An expert can do so.

Anyone can who has become familiar with Photoshop.
 
Similar to the 2024 thread, here I start the 2025 thread. As always it is getting increasingly difficult to predict, so I will make a list based on other article predictions. You can also leave your prediction here. Here are the predictions of 2024 that did not make it: Peter Shor, David Deutsch and all the rest of the quantum computing community (various sources) Pablo Jarrillo Herrero, Allan McDonald and Rafi Bistritzer for magic angle in twisted graphene (various sources) Christoph...
Thread 'My experience as a hostage'
I believe it was the summer of 2001 that I made a trip to Peru for my work. I was a private contractor doing automation engineering and programming for various companies, including Frito Lay. Frito had purchased a snack food plant near Lima, Peru, and sent me down to oversee the upgrades to the systems and the startup. Peru was still suffering the ills of a recent civil war and I knew it was dicey, but the money was too good to pass up. It was a long trip to Lima; about 14 hours of airtime...
Back
Top